Major, minor, and trace element data for oxidized samples from the Escanaba Trough (Gorda Ridge)

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What does this data set describe?

Title:

Major, minor, and trace element data for oxidized samples from the Escanaba Trough (Gorda Ridge)

Abstract:

This data release contains geochemical data of oxidized subsamples of rock samples collected from the Escanaba Trough vent field, Gorda Ridge, in the northeast Pacific Ocean. These data were collected in 2022 on expedition TN403 (USGS Field Activity 2022-621-FA). Samples were taken to the USGS Pacific Coastal Marine Science Center for subsampling and geochemical analyses. Data include major, minor, and trace element concentrations, location information (latitude, longitude, depth), analytical methods, and instrument detection limits where available.

Supplemental_Information:

Additional information about the field activity or activities from which these data were derived is available online at:
https://cmgds.marine.usgs.gov/fan_info.php?fan=2022-621-FA
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

How might this data set be cited?
Shapiro, Isabelle M., Favela, Jaycee, Adamczyk, Katlin Bowman, and Gartman, Amy, 20260403, Major, minor, and trace element data for oxidized samples from the Escanaba Trough (Gorda Ridge): data release DOI: 10.5066/P1DJPX9G, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, California.
Online Links:
- https://doi.org/10.5066/P1DJPX9G
This is part of the following larger work.
Shapiro, Isabelle M., Favela, Jaycee, Adamczyk, Katlin Bowman, and Gartman, Amy, 2026, Geochemistry and x-ray diffraction data of rock samples from the Escanaba Trough (Gorda Ridge): data release DOI: 10.5066/P1DJPX9G, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, California.
Online Links:
- https://doi.org/10.5066/P1DJPX9G
Other_Citation_Details:
Suggested Citation: Shapiro, I. M., Favela, J., Adamczyk, K.B., and Gartman, A., 2026, Geochemistry and x-ray diffraction data of rock samples from the Escanaba Trough (Gorda Ridge): U.S. Geological Survey data release, https://doi.org/10.5066/P1DJPX9G.
What geographic area does the data set cover?
West_Bounding_Coordinate: -127.5392
East_Bounding_Coordinate: -127.4518
North_Bounding_Coordinate: 41.0805
South_Bounding_Coordinate: 40.6987
What does it look like?
Does the data set describe conditions during a particular time period?

Beginning_Date: 12-Jul-2022

Ending_Date: 11-Aug-2025

Currentness_Reference:

Date that the last process step was completed
What is the general form of this data set?
Geospatial_Data_Presentation_Form: comma-delimited text
How does the data set represent geographic features?
1. How are geographic features stored in the data set?
  This is a Point data set. It contains the following vector data types (SDTS terminology):
  - Point (11)
2. What coordinate system is used to represent geographic features?
  Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.0001. Longitudes are given to the nearest 0.0001. Latitude and longitude values are specified in Decimal degrees. The horizontal datum used is D_WGS_1984.
  The ellipsoid used is WGS_1984.
  The semi-major axis of the ellipsoid used is 6378137.0.
  The flattening of the ellipsoid used is 1/298.257223563.
How does the data set describe geographic features?

TN403_Rind_Geochem_data.csv
Comma-delimited file containing results from geochemical analyses of rock samples at the latitude, longitude, and water depth of each sample location. The value -8888 indicates that the measurement for an analyte was below the detection limit, the value of -7777 indicates that the measurement for an analyte was above the detection limit, and the value -9999 indicates that no analysis was performed. (Source: Producer defined)

Cruise_ID
The alphanumeric cruise identified for the expedition during which the sample was collected (Source: producer defined)

Value Definition

TN403 Cruise identifier for the Escanaba Trough expedition onboard the R/V Thomas G. Thompson in 2022.

Sample_ID
The sample ID for each sample (Source: Originally defined onboard ship during the cruise by cruise participants. IDs were updated by USGS once sampling was completed.) Sample IDs are formatted as Dive#-Rock#-rind (for example, J2-1424-R03-rind is ROV Jason dive number J2-1424, rock number 3, rind composition). Deviations from this naming convention include J2-1420-R01-orange-black-rind (sample collected from an orange-black section of the rock rind), and J2-1423-R04-PartB-bulk-oxidized (One section of sample J2-1423-R04 that was left to oxidize for three days).
Sample_Type
The type of rock each sample (Source: Producer defined)

Value Definition

rind this is a rind sample

ex-situ oxidation product this is a sample that was oxidized ex-situ in the laboratory

Latitude
Latitude at which sample was collected (Source: producer defined)

Range of values

Minimum: 40.6987

Maximum: 41.0805

Units: decimal degrees

Resolution: 0.0001

Longitude
Longitude at which sample was collected (Source: producer defined)

Range of values

Minimum: -127.5392

Maximum: -127.4518

Units: decimal degrees

Resolution: 0.0001

Water_Depth
Water depth in meters at which the sample was collected (Source: producer defined)

Range of values

Minimum: 3198

Maximum: 3272

Units: meters

Resolution: 1

Fe
Iron concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 11500

Maximum: 498000

Units: parts per million

Resolution: 100

Mn
Manganese concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 32

Maximum: 22400

Units: parts per million

Resolution: 1

Si
Silicon concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 2400

Maximum: 53800

Units: parts per million

Resolution: 100

Al
Aluminum concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 400

Maximum: 3800

Units: parts per million

Resolution: 100

Mg
Magnesium concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 600

Maximum: 3800

Units: parts per million

Resolution: 100

Ca
Calcium concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 1300

Maximum: 4800

Units: parts per million

Resolution: 100

Na
Sodium concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 3600

Maximum: 15500

Units: parts per million

Resolution: 100

K
Potassium concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 1000

Maximum: 2000

Units: parts per million

Resolution: 1000

Ti
Titanium concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 200

Maximum: 200

Units: parts per million

Resolution: 100

S
Sulfur concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 6900

Maximum: 355000

Units: parts per million

Resolution: 100

Ag
Silver concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 45

Maximum: 275

Units: parts per million

Resolution: 1

As
Arsenic concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 107

Maximum: 6130

Units: parts per million

Resolution: 1

B
Boron concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 20

Maximum: 220

Units: parts per million

Resolution: 10

Ba
Barium concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 457

Maximum: 55100

Units: parts per million

Resolution: 1

Bi
Bismuth concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 3

Maximum: 53

Units: parts per million

Resolution: 1

Cd
Cadmium concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 4

Maximum: 401

Units: parts per million

Resolution: 1

Cl
Chlorine concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 4000

Maximum: 28100

Units: parts per million

Resolution: 100

Co
Cobalt concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 1.6

Maximum: 811.0

Units: parts per million

Resolution: 0.1

Cr
Chromium concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 6

Maximum: 49

Units: parts per million

Resolution: 1

Cu
Copper concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 130

Maximum: 20100

Units: parts per million

Resolution: 1

Ga
Gallium concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 1.8

Maximum: 52.2

Units: parts per million

Resolution: 0.1

Ge
Germanium concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.8

Maximum: 45.9

Units: parts per million

Resolution: 0.1

Hf
Hafnium concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry) Values of -8888 indicate that the measurement was below the detection limit (<1 ppm).
Hg
Mercury concentration in each sample. Values of -7777 indicate that the measurement was above the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.149

Maximum: 91.800

Units: parts per million

Resolution: 0.001

In
Indium concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.2

Maximum: 9.7

Units: parts per million

Resolution: 0.1

Li
Lithium concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry) Values of -8888 indicate that the measurement was below the detection limit (<15 ppm)
Mo
Molybdenum concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 42

Maximum: 165

Units: parts per million

Resolution: 1

Nb
Niobium concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 3.1

Maximum: 3.1

Units: parts per million

Resolution: 0.1

Ni
Nickel concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 10

Maximum: 390

Units: parts per million

Resolution: 10

Pb
Lead concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 197

Maximum: 47400

Units: parts per million

Resolution: 0.1

Rb
Rubidium concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 1.5

Maximum: 4.8

Units: parts per million

Resolution: 0.1

Sb
Antimony concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 25

Maximum: 1110

Units: parts per million

Resolution: 1

Sc
Scandium concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.3

Maximum: 1.4

Units: parts per million

Resolution: 0.1

Se
Selenium concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 9

Maximum: 264

Units: parts per million

Resolution: 1

Sn
Tin concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.8

Maximum: 385.0

Units: parts per million

Resolution: 0.1

Sr
Strontium concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 27

Maximum: 6880

Units: parts per million

Resolution: 1

Ta
Tantalum concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.3

Maximum: 0.3

Units: parts per million

Resolution: 0.1

Te
Tellurium concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 6

Maximum: 9

Units: parts per million

Resolution: 1

Th
Thorium concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.1

Maximum: 0.6

Units: parts per million

Resolution: 0.1

Tl
Thallium concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 1.2

Maximum: 128.0

Units: parts per million

Resolution: 0.1

U
Uranium concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.5

Maximum: 25.3

Units: parts per million

Resolution: 0.1

V
Vanadium concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 18

Maximum: 455

Units: parts per million

Resolution: 1

W
Tungsten concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.8

Maximum: 22.7

Units: parts per million

Resolution: 0.1

Zn
Zinc concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 1440

Maximum: 114000

Units: parts per million

Resolution: 10

Zr
Zirconium concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 4

Maximum: 51

Units: parts per million

Resolution: 1

La
Lanthanum concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.8

Maximum: 49.5

Units: parts per million

Resolution: 0.1

Ce
Cerium concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 1.0

Maximum: 35.4

Units: parts per million

Resolution: 0.1

Pr
Praseodymium concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.1

Maximum: 4.7

Units: parts per million

Resolution: 0.1

Nd
Neodyium concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.9

Maximum: 21.2

Units: parts per million

Resolution: 0.1

Sm
Samarium concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.1

Maximum: 4.2

Units: parts per million

Resolution: 0.1

Eu
Europium concentration in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.2

Maximum: 11.7

Units: parts per million

Resolution: 0.1

Gd
Gadolinium concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.4

Maximum: 6.6

Units: parts per million

Resolution: 0.1

Tb
Terbium concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.1

Maximum: 0.7

Units: parts per million

Resolution: 0.1

Dy
Dysprosium concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.3

Maximum: 4.7

Units: parts per million

Resolution: 0.1

Y
Yttrium content in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.4

Maximum: 25.6

Units: parts per million

Resolution: 0.1

Ho
Holmium concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.4

Maximum: 1.0

Units: parts per million

Resolution: 0.1

Er
Erbium concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.2

Maximum: 2.9

Units: parts per million

Resolution: 0.1

Tm
Thulium concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.2

Maximum: 0.4

Units: parts per million

Resolution: 0.1

Yb
Ytterbium concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.1

Maximum: 2.8

Units: parts per million

Resolution: 0.1

SUM_REY
Summation of the concentration of rare earth elements (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu) plus Y in each sample (Source: standard reporting value in geochemistry)

Range of values

Minimum: 3.5

Maximum: 118.5

Units: parts per million

Resolution: 0.1

Percent_HREY
Percentage of the heavy rare earth elements calculated by taking the sum of heavy rare earth elements (Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu) and Y and dividing by the total_REY for each sample. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 4

Maximum: 40

Units: percent

Resolution: 1

Au
Gold concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.014

Maximum: 0.690

Units: parts per million

Resolution: 0.001

Ir
Iridium concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. Values of -9999 indicate that no analysis was done. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.018

Maximum: 0.022

Units: parts per million

Resolution: 0.001

Os
Osmium concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. Values of -9999 indicate that no analysis was done. (Source: standard reporting value in geochemistry) Values of -8888 indicate that the measurement was below the detection limit (0.005)
Pd
Palladium concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. Values of -9999 indicate that no analysis was done. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.013

Maximum: 0.034

Units: parts per million

Resolution: 0.001

Pt
Platinum concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. Values of -9999 indicate that no analysis was done. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.010

Maximum: 0.074

Units: parts per million

Resolution: 0.001

Rh
Rhodium concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. Values of -9999 indicate that no analysis was done. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.008

Maximum: 0.008

Units: parts per million

Resolution: 0.001

Ru
Ruthenium concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. Values of -9999 indicate that no analysis was done. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 0.022

Maximum: 0.022

Units: parts per million

Resolution: 0.001

TOC
Total organic carbon concentration in each sample. Values of -9999 indicate that no analysis was done. (Source: standard reporting value in geochemistry)

Range of values

Minimum: 1490

Maximum: 1490

Units: parts per million

Resolution: 1

TIC
Total inorganic carbon concentration in each sample. Values of -8888 indicate that the measurement was below the detection limit. Values of -9999 indicate that no analysis was done. (Source: standard reporting value in geochemistry) Values of -8888 indicate that the measurement was below the detection limit.
Fe_Detection
The detection limit for iron concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Mn_Detection
The detection limit for manganese concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Si_Detection
The detection limit for silicon concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Al_Detection
The detection limit for aluminum concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Mg_Detection
The detection limit for magnesium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Ca_Detection
The detection limit for calcium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Na_Detection
The detection limit for sodium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
K_Detection
The detection limit for potassium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Ti_Detection
The detection limit for titanium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
S_Detection
The detection limit for sulfur concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Ag_Detection
The detection limit for silver concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
As_Detection
The detection limit for arsenic concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
B_Detection
The detection limit for boron concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Ba_Detection
The detection limit for barium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Bi_Detection
The detection limit for bismuth concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Cd_Detection
The detection limit for cadmium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Cl_Detection
The detection limit for chlorine concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Co_Detection
The detection limit for cobalt concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Cr_Detection
The detection limit for chromium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Cu_Detection
The detection limit for copper concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Ga_Detection
The detection limit for gallium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Ge_Detection
The detection limit for germanium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Hf_Detection
The detection limit for hafnium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Hg_Detection
The detection limit for mercury concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
In_Detection
The detection limit for indium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Li_Detection
The detection limit for lithium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Mo_Detection
The detection limit for molybdenum concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Nb_Detection
The detection limit for niobium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Ni_Detection
The detection limit for nickel concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Pb_Detection
The detection limit for lead concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Rb_Detection
The detection limit for rubidium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Sb_Detection
The detection limit for antimony concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Sc_Detection
The detection limit for scandium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Se_Detection
The detection limit for selenium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Sn_Detection
The detection limit for tin concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Sr_Detection
The detection limit for strontium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Ta_Detection
The detection limit for tantalum concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Te_Detection
The detection limit for tellurium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Th_Detection
The detection limit for thorium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Tl_Detection
The detection limit for thallium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
U_Detection
The detection limit for uranium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
V_Detection
The detection limit for vanadium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
W_Detection
The detection limit for tungsten concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Zn_Detection
The detection limit for zinc concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Zr_Detection
The detection limit for zirconium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
La_Detection
The detection limit for lanthanum concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Ce_Detection
The detection limit for cerium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Pr_Detection
The detection limit for praseodymium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Nd_Detection
The detection limit for neodymium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Sm_Detection
The detection limit for samarium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Eu_Detection
The detection limit for europium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Gd_Detection
The detection limit for gadolinium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Tb_Detection
The detection limit for terbium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Dy_Detection
The detection limit for dysprosium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Y_Detection
The detection limit for yttrium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Ho_Detection
The detection limit for holmium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Er_Detection
The detection limit for erbium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Tm_Detection
The detection limit for thulium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Yb_Detection
The detection limit for ytterbium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Au_Detection
The detection limit for gold concentration based on the measurement method and instrumentation (Source: Producer defined)

Range of values

Minimum: 0.002

Maximum: 0.005

Units: parts per million

Resolution: 100

Ir_Detection
The detection limit for iridium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Os_Detection
The detection limit for osmium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Pd_Detection
The detection limit for palladium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Pt_Detection
The detection limit for platinum concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Rh_Detection
The detection limit for rhodium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Ru_Detection
The detection limit for ruthenium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
TOC_Detection
The detection limit total organic carbon concentration based on the measurement method and instrumentation. Values of -9999 indicate that the detection limit was not available. (Source: Producer defined) Numerical value provided by the analyzer in parts per million
TIC_Detection
The detection limit total inorganic carbon concentration based on the measurement method and instrumentation. Values of -9999 indicate that the detection limit was not available. (Source: Producer defined) Numerical value provided by the analyzer in parts per million
Fe_method
An alphanumeric code that denotes the method and instrumentation used to measure iron concentration (Source: Producer defined)

Value Definition

ICP_OES_Na2O2 Inductively Coupled Plasma Optical Emission Spectroscopy sodium peroxide fusion by ActLabs

Mn_method
An alphanumeric code that denotes the method and instrumentation used to measure manganese concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Si_method
An alphanumeric code that denotes the method and instrumentation used to measure silicon concentration (Source: Producer defined)

Value Definition

ICP_OES_Na2O2 Inductively Coupled Plasma Optical Emission Spectroscopy sodium peroxide fusion by ActLabs

Al_method
An alphanumeric code that denotes the method and instrumentation used to measure aluminum concentration (Source: Producer defined)

Value Definition

ICP_OES_Na2O2 Inductively Coupled Plasma Optical Emission Spectroscopy sodium peroxide fusion by ActLabs

Mg_method
An alphanumeric code that denotes the method and instrumentation used to measure magnesium concentration (Source: Producer defined)

Value Definition

ICP_OES_Na2O2 Inductively Coupled Plasma Optical Emission Spectroscopy sodium peroxide fusion by ActLabs

Ca_method
An alphanumeric code that denotes the method and instrumentation used to measure calcium concentration. Values of -8888 indicate that the measurement was below the detection limit. (Source: Producer defined)

Value Definition

ICP_OES_Na2O2 Inductively Coupled Plasma Optical Emission Spectroscopy sodium peroxide fusion by ActLabs

Na_method
An alphanumeric code that denotes the method and instrumentation used to measure sodium concentration (Source: Producer defined)

Value Definition

INAA Instrumental Neutron Activation Analysis by ActLabs

K_method
An alphanumeric code that denotes the method and instrumentation used to measure potassium concentration (Source: Producer defined)

Value Definition

ICP_OES_Na2O2 Inductively Coupled Plasma Optical Emission Spectroscopy sodium peroxide fusion by ActLabs

Ti_method
An alphanumeric code that denotes the method and instrumentation used to measure titanium concentration (Source: Producer defined)

Value Definition

ICP_OES_Na2O2 Inductively Coupled Plasma Optical Emission Spectroscopy sodium peroxide fusion by ActLabs

S_method
An alphanumeric code that denotes the method and instrumentation used to measure sulfur concentration (Source: Producer defined)

Value Definition

ICP_OES_Na2O2 Inductively Coupled Plasma Optical Emission Spectroscopy sodium peroxide fusion by ActLabs

Ag_method
An alphanumeric code that denotes the method and instrumentation used to measure silver concentration (Source: Producer defined)

Value Definition

INAA Instrumental Neutron Activation Analysis by ActLabs

As_method
An alphanumeric code that denotes the method and instrumentation used to measure aresenic concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

B_method
An alphanumeric code that denotes the method and instrumentation used to measure boron concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Ba_method
An alphanumeric code that denotes the method and instrumentation used to measure barium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Bi_method
An alphanumeric code that denotes the method and instrumentation used to measure bismuth concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Cd_method
An alphanumeric code that denotes the method and instrumentation used to measure cadmium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Cl_method
An alphanumeric code that denotes the method and instrumentation used to measure chlorine concentration (Source: Producer defined)

Value Definition

INAA Instrumental Neutron Activation Analysis by ActLabs

Co_method
An alphanumeric code that denotes the method and instrumentation used to measure cobalt concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Cr_method
An alphanumeric code that denotes the method and instrumentation used to measure choromium concentration (Source: Producer defined)

Value Definition

INAA Instrumental Neutron Activation Analysis by ActLabs

Cu_method
An alphanumeric code that denotes the method and instrumentation used to measure copper concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Ga_method
An alphanumeric code that denotes the method and instrumentation used to measure gallium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Ge_method
An alphanumeric code that denotes the method and instrumentation used to measure germanium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Hf_method
An alphanumeric code that denotes the method and instrumentation used to measure hafnium concentration (Source: Producer defined)

Value Definition

INAA Instrumental Neutron Activation Analysis by ActLabs

Hg_method
An alphanumeric code that denotes the method and instrumentation used to measure mercury concentration (Source: Producer defined)

Value Definition

CVAAS Cold Vapor Atomic Absorption Spectroscopy by ActLabs

In_method
An alphanumeric code that denotes the method and instrumentation used to measure indium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Li_method
An alphanumeric code that denotes the method and instrumentation used to measure lithium concentration (Source: Producer defined)

Value Definition

ICP_OES_Na2O2 Inductively Coupled Plasma Optical Emission Spectroscopy sodium peroxide fusion by ActLabs

Mo_method
An alphanumeric code that denotes the method and instrumentation used to measure molybdenum concentration (Source: Producer defined)

Value Definition

INAA Instrumental Neutron Activation Analysis by ActLabs

Nb_method
An alphanumeric code that denotes the method and instrumentation used to measure niobium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Ni_method
An alphanumeric code that denotes the method and instrumentation used to measure nickel concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Pb_method
An alphanumeric code that denotes the method and instrumentation used to measure lead concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Rb_method
An alphanumeric code that denotes the method and instrumentation used to measure rubidium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabss

Sb_method
An alphanumeric code that denotes the method and instrumentation used to measure antimony concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Sc_method
An alphanumeric code that denotes the method and instrumentation used to measure scandium concentration (Source: Producer defined)

Value Definition

INAA Instrumental Neutron Activation Analysis by ActLabs

Se_method
An alphanumeric code that denotes the method and instrumentation used to measure selenium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Sn_method
An alphanumeric code that denotes the method and instrumentation used to measure tin concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Sr_method
An alphanumeric code that denotes the method and instrumentation used to measure strontium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Ta_method
An alphanumeric code that denotes the method and instrumentation used to measure tantalum concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Te_method
An alphanumeric code that denotes the method and instrumentation used to measure tellurium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Th_method
An alphanumeric code that denotes the method and instrumentation used to measure thorium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Tl_method
An alphanumeric code that denotes the method and instrumentation used to measure thallium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

U_method
An alphanumeric code that denotes the method and instrumentation used to measure uranium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

V_method
An alphanumeric code that denotes the method and instrumentation used to measure vanadium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

W_method
An alphanumeric code that denotes the method and instrumentation used to measure tungsten concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Zn_method
An alphanumeric code that denotes the method and instrumentation used to measure zinc concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Zr_method
An alphanumeric code that denotes the method and instrumentation used to measure zirconium concentration (Source: Producer defined)

Value Definition

ICP_MS_FUS Inductively Coupled Plasma Mass Spectrometry, Lithium Borate Fusion by ActLabs

La_method
An alphanumeric code that denotes the method and instrumentation used to measure lanthanum concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Ce_method
An alphanumeric code that denotes the method and instrumentation used to measure cerium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Pr_method
An alphanumeric code that denotes the method and instrumentation used to measure praseodymium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Nd_method
An alphanumeric code that denotes the method and instrumentation used to measure neodymium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Sm_method
TAn alphanumeric code that denotes the method and instrumentation used to measure samarium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Eu_method
An alphanumeric code that denotes the method and instrumentation used to measure europium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Gd_method
An alphanumeric code that denotes the method and instrumentation used to measure gadolinium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Tb_method
An alphanumeric code that denotes the method and instrumentation used to measure terbium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Dy_method
An alphanumeric code that denotes the method and instrumentation used to measure dysprosium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Y_method
An alphanumeric code that denotes the method and instrumentation used to measure yttrium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Ho_method
An alphanumeric code that denotes the method and instrumentation used to measure holmium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Er_method
An alphanumeric code that denotes the method and instrumentation used to measure erbium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Tm_method
An alphanumeric code that denotes the method and instrumentation used to measure thulium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Yb_method
An alphanumeric code that denotes the method and instrumentation used to measure ytterbium concentration (Source: Producer defined)

Value Definition

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Au_method
An alphanumeric code that denotes the method and instrumentation used to measure gold concentration (Source: Producer defined)

Value Definition

INAA Instrumental Neutron Activation Analysis by ActLabs

ICP_MS_Na2O2 Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Ir_method
An alphanumeric code that denotes the method and instrumentation used to measure iridium concentration (Source: Producer defined)

Value Definition

ICP_MS_NiS_FA Inductively Coupled Plasma Mass Spectrometry, nickel sulfide fire assay by Intertek

Os_method
An alphanumeric code that denotes the method and instrumentation used to measure osmium concentration (Source: Producer defined)

Value Definition

ICP_MS_NiS_FA Inductively Coupled Plasma Mass Spectrometry, nickel sulfide fire assay by Intertek

Pd_method
An alphanumeric code that denotes the method and instrumentation used to measure palladium concentration (Source: Producer defined)

Value Definition

ICP_MS_NiS_FA Inductively Coupled Plasma Mass Spectrometry, nickel sulfide fire assay by Intertek

Pt_method
An alphanumeric code that denotes the method and instrumentation used to measure platinum concentration (Source: Producer defined)

Value Definition

ICP_MS_NiS_FA Inductively Coupled Plasma Mass Spectrometry, nickel sulfide fire assay by Intertek

Rh_method
An alphanumeric code that denotes the method and instrumentation used to measure rhodium concentration (Source: Producer defined)

Value Definition

ICP_MS_NiS_FA Inductively Coupled Plasma Mass Spectrometry, nickel sulfide fire assay by Intertek

Ru_method
An alphanumeric code that denotes the method and instrumentation used to measure ruthenium concentration (Source: Producer defined)

Value Definition

ICP_MS_NiS_FA Inductively Coupled Plasma Mass Spectrometry, nickel sulfide fire assay by Intertek

TOC_method
An alphanumeric code that denotes the method and instrumentation used to measure total organic carbon concentration (Source: Producer defined)

Value Definition

Wt_difference Sample weight difference

TIC_method
An alphanumeric code that denotes the method and instrumentation used to measure total inorganic carbon concentration (Source: Producer defined)

Value Definition

UIC UIC CM5230 acid digester attached to a CM5017 coulometer

Entity_and_Attribute_Overview: The first line of the csv file is a header line.
Entity_and_Attribute_Detail_Citation: U.S. Geological Survey

Value	Definition
TN403	Cruise identifier for the Escanaba Trough expedition onboard the R/V Thomas G. Thompson in 2022.

Value	Definition
rind	this is a rind sample
ex-situ oxidation product	this is a sample that was oxidized ex-situ in the laboratory

Range of values
Minimum:	40.6987
Maximum:	41.0805
Units:	decimal degrees
Resolution:	0.0001

Range of values
Minimum:	-127.5392
Maximum:	-127.4518
Units:	decimal degrees
Resolution:	0.0001

Range of values
Minimum:	3198
Maximum:	3272
Units:	meters
Resolution:	1

Range of values
Minimum:	11500
Maximum:	498000
Units:	parts per million
Resolution:	100

Range of values
Minimum:	32
Maximum:	22400
Units:	parts per million
Resolution:	1

Range of values
Minimum:	2400
Maximum:	53800
Units:	parts per million
Resolution:	100

Range of values
Minimum:	400
Maximum:	3800
Units:	parts per million
Resolution:	100

Range of values
Minimum:	600
Maximum:	3800
Units:	parts per million
Resolution:	100

Range of values
Minimum:	1300
Maximum:	4800
Units:	parts per million
Resolution:	100

Range of values
Minimum:	3600
Maximum:	15500
Units:	parts per million
Resolution:	100

Range of values
Minimum:	1000
Maximum:	2000
Units:	parts per million
Resolution:	1000

Range of values
Minimum:	200
Maximum:	200
Units:	parts per million
Resolution:	100

Range of values
Minimum:	6900
Maximum:	355000
Units:	parts per million
Resolution:	100

Range of values
Minimum:	45
Maximum:	275
Units:	parts per million
Resolution:	1

Range of values
Minimum:	107
Maximum:	6130
Units:	parts per million
Resolution:	1

Range of values
Minimum:	20
Maximum:	220
Units:	parts per million
Resolution:	10

Range of values
Minimum:	457
Maximum:	55100
Units:	parts per million
Resolution:	1

Range of values
Minimum:	3
Maximum:	53
Units:	parts per million
Resolution:	1

Range of values
Minimum:	4
Maximum:	401
Units:	parts per million
Resolution:	1

Range of values
Minimum:	4000
Maximum:	28100
Units:	parts per million
Resolution:	100

Range of values
Minimum:	1.6
Maximum:	811.0
Units:	parts per million
Resolution:	0.1

Range of values
Minimum:	6
Maximum:	49
Units:	parts per million
Resolution:	1

Range of values
Minimum:	130
Maximum:	20100
Units:	parts per million
Resolution:	1

Range of values
Minimum:	1.8
Maximum:	52.2
Units:	parts per million
Resolution:	0.1

Range of values
Minimum:	0.8
Maximum:	45.9
Units:	parts per million
Resolution:	0.1

Range of values
Minimum:	0.149
Maximum:	91.800
Units:	parts per million
Resolution:	0.001

Range of values
Minimum:	0.2
Maximum:	9.7
Units:	parts per million
Resolution:	0.1

Range of values
Minimum:	42
Maximum:	165
Units:	parts per million
Resolution:	1

Range of values
Minimum:	3.1
Maximum:	3.1
Units:	parts per million
Resolution:	0.1

Range of values
Minimum:	10
Maximum:	390
Units:	parts per million
Resolution:	10

Range of values
Minimum:	197
Maximum:	47400
Units:	parts per million
Resolution:	0.1

Range of values
Minimum:	1.5
Maximum:	4.8
Units:	parts per million
Resolution:	0.1

Range of values
Minimum:	25
Maximum:	1110
Units:	parts per million
Resolution:	1

Range of values
Minimum:	0.3
Maximum:	1.4
Units:	parts per million
Resolution:	0.1

Range of values
Minimum:	9
Maximum:	264
Units:	parts per million
Resolution:	1

Range of values
Minimum:	0.8
Maximum:	385.0
Units:	parts per million
Resolution:	0.1

Range of values
Minimum:	27
Maximum:	6880
Units:	parts per million
Resolution:	1

Range of values
Minimum:	0.3
Maximum:	0.3
Units:	parts per million
Resolution:	0.1

Range of values
Minimum:	6
Maximum:	9
Units:	parts per million
Resolution:	1

Range of values
Minimum:	0.1
Maximum:	0.6
Units:	parts per million
Resolution:	0.1

Range of values
Minimum:	1.2
Maximum:	128.0
Units:	parts per million
Resolution:	0.1

Range of values
Minimum:	0.5
Maximum:	25.3
Units:	parts per million
Resolution:	0.1

Range of values
Minimum:	18
Maximum:	455
Units:	parts per million
Resolution:	1

Range of values
Minimum:	0.8
Maximum:	22.7
Units:	parts per million
Resolution:	0.1

Range of values
Minimum:	1440
Maximum:	114000
Units:	parts per million
Resolution:	10

Range of values
Minimum:	4
Maximum:	51
Units:	parts per million
Resolution:	1

Range of values
Minimum:	0.8
Maximum:	49.5
Units:	parts per million
Resolution:	0.1

Range of values
Minimum:	1.0
Maximum:	35.4
Units:	parts per million
Resolution:	0.1

Who produced the data set?

Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
- Isabelle M. Shapiro
- Jaycee Favela
- Katlin Bowman Adamczyk
- Amy Gartman
Who also contributed to the data set?
To whom should users address questions about the data?

U.S. Geological Survey, Pacific Coastal and Marine Science Center

Attn: PCMSC Science Data Coordinator

2885 Mission Street
Santa Cruz, CA

831-427-4747 (voice)

pcmsc_data@usgs.gov

Why was the data set created?

These data serve to expand the knowledge and statistics for deep ocean marine mineral occurrences and composition within the global ocean.

How was the data set created?

From what previous works were the data drawn?
geochemistry (source 1 of 2)
Activation Laboratories Ltd. (Actlabs), Ancaster, Ontario, Canada, 2023, Geochemical Element Analysis.
Online Links:
- https://actlabs.com/geochemistry/
Type_of_Source_Media: geochemical analyses
Source_Contribution:
Geochemical analysis of rock powders. Fe, Si, Al, Ca, Mg, K, Ti, and Li were determined by Inductively Coupled Plasma Optical Emission Spectroscopy sodium peroxide fusion (ICP_OES_Na2O2); Mn, As, B, Ba, Bi, Cd, Co, Cu, Ga, Ge, In, Nb, Ni, Rb, Pb, Sb, Sn, Sr, Se, Ta, Te, Th, Tl, U, V, W, Zn, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Y, Ho, Er, Tm, and Yb were determined by Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion (ICP_MS_Na2O2); Na, Ag, Cl, Cr, Hf, Mo, and Sc were determined by Instrumental Neutron Activation Analysis (INAA); Ir, Os, Pd, Pt, Rh, and Ru were determined by Inductively Coupled Plasma Mass Spectrometry, nickel sulfide fire assay (ICP_MS_NiS_FA); Zr was determined by Inductively Coupled Plasma Mass Spectrometry, Lithium Borate Fusion (ICP_MS_FUS), and Hg was determined by Cold Vapor Atomic Absorption Spectroscopy (CVAAS). Au was determined by Instrumental Neutron Activation Analysis (INAA) for most of the samples and by Inductively Coupled Plasma Mass Spectrometry, nickel sulfide fire assay (ICP_MS_NiS_FA) for the remaining.
PGE data (source 2 of 2)
Intertek, Maddington, Western Australia, 2024, Platinum Group Element Analysis.
Online Links:
- https://www.intertek.com/minerals/precious-metals-analysis/
Type_of_Source_Media: geochemical analyses
Source_Contribution:
Geochemical analysis of rock powders. Platinum group element concentrations (PGE; Au, Ir, Os, Pd, Pt, Rh, Ru), as well as Au concentrations for several samples, were determined by Inductively Coupled Plasma Mass Spectrometry, nickel sulfide fire assay (ICP_MS_NiS_FA).
How were the data generated, processed, and modified?
Date: 13-Jun-2022 (process 1 of 4)
Rock samples were collected on the R/V Thomas G. Thompson between May 24, 2022, and June 13, 2022, during the TN403 Escanaba Trough expedition, which was led and staffed by USGS employees. Rocks were collected from the seafloor using the ROV Jason's manipulator arm at water depths between 3192 and 3319 meters. Rock samples were frozen immediately upon recovery from the ROV, stored frozen, and shipped on ice to the USGS Pacific Coastal and Marine Science Center in Santa Cruz, CA.
Date: 24-Aug-2023 (process 2 of 4)
In the USGS Pacific Coastal and Marine Science Center Global Seabed Mineral Resources Lab, rock samples were freeze dried, then the weathered or depositional outer later of the rock was carefully scraped off using a ceramic blade. This outer layer was then ground to a powder (approximately 75 micrometers) using a shatterbox and ceramic-lined bowls and ceramic pucks. Ceramic-lined bowls and pucks were cleaned thoroughly with quartz powder and detergents between samples to avoid cross-contamination. Powdered samples (10-50 grams) were then mailed to commercial analytical labs, Actlabs and Intertek, in individual plastic screw-top containers for geochemical analyses. See Source Citations for information on geochemical techniques. Data sources used in this process:
- geochemistry
- PGE data
Date: 01-Nov-2023 (process 3 of 4)
Total rare earth elements plus yttrium (Total_REY) were calculated by summing the concentration of rare earth elements (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu) plus Y in each sample. Percentage of the heavy rare earth elements was calculated by taking the sum of heavy rare earth elements (Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) and Y and dividing the sum by the Total_REY value for each sample. Data sources used in this process:
- geochemistry
- PGE data
Date: 11-Aug-2025 (process 4 of 4)
Results from the lab analyses, detection limits, analytical method information, location data, and sample information were combined into a comma-delimited text values document (TN403_Rind_Geochem_data.csv). Person who carried out this activity:

Katlin Adamczyk

USGS

Physical Scientist

2885 Mission Street
Santa Cruz, CA

831-460-7420 (voice)

Kadamczyk@usgs.gov

Data sources used in this process:
- geochemistry
What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

How well have the observations been checked?
All geochemistry data were calibrated against certified reference materials. The average relative percent different (RPD) between measured and certified concentrations was 10-20 percent for Au, W, V, Th, Tb, Bi, Y, Sb, Sn, In, Ga, Er, Dy, Eu, and Rb. Higher RPDs (>20 percent) were observed for Cr, Sm, and Yb. Average RPDs were <10 percent for Ir, Pd, Pt, Rh, Ru, Al, As, Ba, Ca, Cd, Ce, Cl, Co, Fe, Gd, Hf, Hg, Ho, K, La, Li, Mg, Mn, Mo, Nb, Nd, Ni, Pb, Pr, S, Si, Sr, Ti, Tl, U, Zn, Zr. There were no CRMs for Ru, Ag, B, Ge, Na, Sc, Se, Ta, Te, and Tm. Duplicate measurements were made for all elements except Os, Ag, Au, Be, Cl, Hf, Ir, Li, Ti, Na, Sc, Tm, Ta, and Lu. The average RPD between duplicate measurements was 10-20 percent for Y, Er, Pr, Eu, K, W, Tb, Tl, Rb, and In. Higher RPDs (>20 percent) were observed for Au, Ir, Pd, Pt, Rh, Ru, Gd, Dy, Te, Ca, Cs, Ni, Yb, Sm, Nd, and Nb. Average RPDs were <10 percent for Fe, S, Si, Th, V, Mn, Cu, Hg, Cd, Pb, Sb, Al, Zn, Co, As, Sr, B, Bi, U, Mg, Sn, Ce, Zr, Ba, Cr, Mo, La, Ho, Ga, Ge, and Se. The instruments and techniques used to generate the geochemical data are included in the data table and also summarized below in the Source Citations since data were generated by commercial laboratories. Limits for each analyte's detection by an instrument are reported in the table. The value -8888 indicates that the measurement for an analyte was below the detection limit and the value -7777 indicates that the measurement for an analyte was above the detection limit. Values of -9999 indicate that no analysis was performed.
How accurate are the geographic locations?
The location of rock samples were determined using ROV Jason's ultra-short baseline (USBL) navigation. Accuracy for this depth is approximately 6-26 m. A formal accuracy assessment of the horizontal positional information in the dataset has not been conducted.
How accurate are the heights or depths?
Vertical accuracy was determined with ROV Jason's altimeter, which is accurate to less than 1 m. No formal positional accuracy tests were conducted.
Where are the gaps in the data? What is missing?
Dataset is considered complete for the information presented, as described in the abstract. Many samples do not have chemistry data because analyses were performed on representative samples only. Users are advised to read the rest of the metadata record carefully for additional details.
How consistent are the relationships among the observations, including topology?
No formal logical accuracy tests were conducted.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints	No access constraints
Use_Constraints	USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. These data are marked with a Creative Common CC0 1.0 Universal License. Please recognize and acknowledge the U.S. Geological Survey as the originator of the dataset and in products derived from these data.

Who distributes the data set? (Distributor 1 of 1)

U.S. Geological Survey - ScienceBase

Denver Federal Center, Building 810, Mail Stop 302
Denver, CO

1-888-275-8747 (voice)

sciencebase@usgs.gov
What's the catalog number I need to order this data set? These data are available in .csv format contained in a single file.
What legal disclaimers am I supposed to read?
Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.
How can I download or order the data?
- Availability in digital form:
  
  Data format: File contains table in .csv format in format comma-delimited text (version Microsoft Excel 16.16.17 for Mac) Size: 0.0176
  
  Network links: https://doi.org/10.5066/P1DJPX9G
- Cost to order the data: None.
What hardware or software do I need in order to use the data set?
These data can be viewed with Microsoft Excel or any text reader.

Who wrote the metadata?

Dates:: Last modified: 03-Apr-2026
Metadata author:: U.S. Geological Survey, Pacific Coastal and Marine Science Center

Attn: PCMSC Science Data Coordinator

2885 Mission Street
Santa Cruz, CA

831-427-4747 (voice)

pcmsc_data@usgs.gov
Metadata standard:: Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)

This page is <https://cmgds.marine.usgs.gov/catalog/pcmsc/DataReleases/ScienceBase/DR_P1DJPX9G/Escanaba_Rind_Metadata.faq.html>

Range of values
Minimum:	0.9
Maximum:	21.2
Units:	parts per million
Resolution:	0.1

Range of values
Minimum:	0.2
Maximum:	11.7
Units:	parts per million
Resolution:	0.1

Range of values
Minimum:	0.4
Maximum:	25.6
Units:	parts per million
Resolution:	0.1

Range of values
Minimum:	3.5
Maximum:	118.5
Units:	parts per million
Resolution:	0.1

Range of values
Minimum:	0.014
Maximum:	0.690
Units:	parts per million
Resolution:	0.001

Range of values
Minimum:	0.018
Maximum:	0.022
Units:	parts per million
Resolution:	0.001

Range of values
Minimum:	0.013
Maximum:	0.034
Units:	parts per million
Resolution:	0.001

Range of values
Minimum:	0.010
Maximum:	0.074
Units:	parts per million
Resolution:	0.001

Range of values
Minimum:	0.008
Maximum:	0.008
Units:	parts per million
Resolution:	0.001

Range of values
Minimum:	0.002
Maximum:	0.005
Units:	parts per million
Resolution:	100

Value	Definition
INAA	Instrumental Neutron Activation Analysis by ActLabs
ICP_MS_Na2O2	Inductively Coupled Plasma Mass Spectrometry sodium peroxide fusion by ActsLabs

Data format:	File contains table in .csv format in format comma-delimited text (version Microsoft Excel 16.16.17 for Mac) Size: 0.0176
Network links:	https://doi.org/10.5066/P1DJPX9G