Nancy G. Prouty
Jason Chaytor
20220811
Results from isotope analysis of authigenic carbonates collected offshore the U.S. Mid- and South Atlantic
comma-delimited text
data release
DOI:10.5066/P9DRU8TP
Pacific Coastal and Marine Science Center, Santa Cruz, California
U.S. Geological Survey
https://doi.org/10.5066/P9DRU8TP
https://www.sciencebase.gov/catalog/folder/61576cdbd34e0df5fb9fc371
Jason Chaytor
Nancy G. Prouty
2021
Carbonate chemistry measurements of authigenic carbonates collected offshore the U.S. Mid- and South Atlantic in 2018 and 2019 as part of the DEEPSEARCH Project.
data release
DOI:10.5066/P9DRU8TP
Pacific Coastal and Marine Science Center, Santa Cruz, CA
U.S. Geological Survey
https://doi.org/10.5066/P9DRU8TP
Geochemical analysis of carbonate rock samples collected from seep fields on the RB1903 and AT41 research expeditions in the U.S. Mid- and South Atlantic. Samples were collected as a fingerprint to past hydrocarbon seep activity, fluid source, and depositional environment.
These samples were collected as part of the Deep Sea Exploration to Advance Research on Coral/Canyon/Cold seep Habitats (DEEP SEARCH) study, a multiyear, multi-agency campaign to characterize the deep-sea ecosystems to better understand the distribution of sensitive seafloor communities to inform potential offshore energy development and other deep-sea management.
Additional information about the field activities from which these data were derived is available online at:
http://cmgds.marine.usgs.gov/fan_info.php?fan=2019-314-FA
http://cmgds.marine.usgs.gov/fan_info.php?fan=2019-003-FA
http://cmgds.marine.usgs.gov/fan_info.php?fan=2018-042-FA
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
20180821
20190427
Ground condition at time data were collected.
None planned
-76.1907
-74.7924
35.9274
32.4938
ISO 19115 Topic Category
oceans
environment
geoscientificInformation
Data Categories for Marine Planning
Habitat
USGS Thesaurus
gas hydrate resources
geochemistry
light stable isotopic analysis
chemical analysis
Marine Realms Information Bank (MRIB) keywords
geochemistry
methanogens
None
U.S. Geological Survey
USGS
Coastal and Marine Hazards and Resources Program
CMHRP
Pacific Coastal and Marine Science Center
PCMSC
USGS Metadata Identifier
USGS:61576cdbd34e0df5fb9fc371
Geographic Names Information System (GNIS)
Atlantic Ocean
None
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. Please recognize and acknowledge the U.S. Geological Survey, Bureau of Ocean Energy Management (BOEM), and the National Oceanic and Atmospheric Administration (NOAA) as the originators of the dataset and in products derived from these data.
U.S. Geological Survey, Pacific Coastal and Marine Science Center
PCMSC Science Data Coordinator
mailing and physical
2885 Mission Street
Santa Cruz
CA
95060
831-427-4747
pcmsc_data@usgs.gov
Peter Swart (university of Miami), Angela Tan (USGS PCMSC), Colin Carney (University of California, Santa Cruz)
Microsoft Excel 16.53 for Mac.
Swart, Peter K.
Murray, Sean T.
Staudigel, Phillip T.
Hodell, David D.
2019
Oxygen isotopic exchange between CO2 and phosphoric acid: Implications for the measurement of clumped isotopes in carbonates
https://doi.org/10.1029/2019GC008209
All geochemistry data were calibrated against known standards
No formal logical accuracy tests were conducted.
Dataset is considered complete for the information presented, as described in the abstract. Users are advised to read the metadata for each part of this data release carefully for additional details. Dataset is considered complete for the information presented, as described in the abstract. Users are advised to read the metadata for each part of this data release carefully for additional details.
A formal accuracy assessment of the horizontal positional information in the data set has not been conducted. Both the research vessel and remotely occupied vehicle are equipped with navigational systems and conduct checks to assess the accuracy of the horizontal positioning.
A formal accuracy assessment of the vertical positional information in the data set has not been conducted. Both the research vessel and remotely occupied vehicle are equipped with navigational systems and conduct checks to assess the accuracy of the vertical positioning.
University of Miami, Rosenstiel School of Marine and Atmospheric Sciences (RSMAS), Stable Isotope Geochemistry Isotope Laboratory
2021
Clumped isotope analysis
http://mgg.rsmas.miami.edu/groups/sil/clumped.html
carbonate lab samples
20210129
Date when lab analyses were completed
clumped isotopes
Stable carbon and oxygen isotopes were measured using Thermoscientific 253 isotope ratio mass spectrometer.
USGS Pacific Coastal and Marine Science Center sediment laboratory
2020
Carbon analysis
carbonate lab samples
20200527
Date when lab analyses were completed
Total carbon (TC), Total inorganic carbon (TIC), and Total organic carbon
Total carbon (TC), total inorganic carbon (TIC), and total organic carbon contents of bulk sediment were determined coulometrically (CM 5015 coulometer; UIC, Inc.) at the USGS Pacific Coastal and Marine Science Center sediment lab.
University of California, Santa Cruz (UCSC) Stable Isotope Laboratory
2019
stable isotope analysis
https://sites.google.com/ucsc.edu/sil
carbonate lab samples
20190109
Date when lab analyses were completed
dissolved inorganic carbon
Carbonate samples were analyzed for carbon and oxygen stable isotopes using a Thermo-Finnigan MAT 253 with a Kiel IV Automated Carbonate Prep Device
Stanford University Stable Isotope and Carbon System Laboratory
2020
stable isotope analysis
https://ccoc.stanford.edu/labs/stanford-stable-isotope-and-carbon-system-laboratory
carbonate lab samples
20200116
Date when lab analyses were completed
dissolved inorganic carbon
Carbonate samples were analyzed for carbon and oxygen stable isotopes using a Thermo-Finnigan MAT 252 with a Kiel III Automated Carbonate Prep Device
Authigenic carbonate samples were collected during HOV and ROV dives. Samples were rinsed with freshwater, allowed to dry, photographed and stored at room temperature.
2020
Authigenic carbonate samples were cut using a diamond band saw to expose fresh surfaces. Subsamples, including discretely drilled powders for isotope and carbon analysis, in order to isolate cement from different precipitation events. Results from the different labs were combined into one spreadsheet. Empty cells are designated by -9999 indicating no analysis was performed.
Stanford
UCSC
RSMAS
2020
Point
Point
46
0.0001
0.0001
Decimal degrees
D_WGS_1984
D_WGS_1984
6378137.000000
298.257224
A comma-delimited text file with the first line being a header line.
Output of geochemical analysis of authigenic carbonate samples.
Producer defined.
Cruise
Name of cruise on which samples were collected. The name of the cruise may contain a ship abbreviation and year (Ron Brown=RB1903 and [20XX year, month], AT41=R/V Atlantis and sequential cruise number).
Producer defined
List of cruise names
Ship
Name of ship on which samples were collected
Producer defined.
List of cruise names
Site Name
Site Name where samples were collected
Producer defined.
List of Site names
Date
Date [YYYY-MM-DD]
Producer defined.
2018-08-21
2019-04-27
Sample ID
Unique cruise sample ID based on cruise ID (e.g., RB1903, AT41), submersible (J2=JASON II, AL=Alvin), dive number (e.g., 1133; 4967), sample storage location (e.g., B5=biobox 5, RB=rear biobox), and sample number (e.g., R1 with R=rock).
Producer defined.
List of sample IDs
Depth
meters above seafloor
Producer defined.
235
2169
meters
1
Latitude
Latitude of sample location
Producer defined.
32.4938
35.9274
decimal degrees
0.0001
Longitude
Longitude of sample location
Producer defined.
-76.1907
-74.7924
decimal degrees
0.0001
Total carbon
Total carbon measured in carbonate sample
Producer defined.
5.887
10.830
percent
0.001
Total organic carbon
Total organic carbon measured in carbonate sample
Producer defined.
0.069
0.752
percent
0.001
Total inorganic carbon
Total inorganic carbon measured in carbonate sample
Producer defined.
5.336
10.583
percent
0.001
Calcium carbonate
Total calcium carbonate measured in carbonate sample
Producer defined.
44.463
88.184
percent
0.001
delta-C-13
delta-C-13 is a measure of the ratio of stable isotopes Carbon-13:Carbon-12, reported in parts per thousand (per mil).
standard reporting values in isotope chemistry
-47.65
-38.07
parts per thousand (per mil)
0.01
delta-O-18
delta-O-18 is a measure of the ratio of stable isotopes Oxygen-18:Oxygen-16, reported in parts per thousand (per mil).
standard reporting values in isotope chemistry
2.87
4.24
parts per thousand (per mil)
0.01
Delta-47
Clumped isotope measurement following methods from Swart and others (2019) by examining the clumping of C-13 and O-18 isotopes within a single carbonate phase
Producer defined.
0.630
0.661
per mil
0.001
Delta-47 standard deviation
Standard deviation of Delta-47 measurements based on replicate measurements
Producer defined.
0.001
0.210
per mil
0.001
Temperature
Delta-47 derived temperature for the reaction at 90°C following the calibration equation from Swart and others (2019)
Swart and others (2019)
5.90
15.10
degrees Celsius
0.01
Temperature error
Error associated with temperature calculations based on replicated of Delta-47 measurements
Swart and others (2019)
0.40
8.00
degrees Celsius
0.01
The first line of the tab-delimited text file is a header line.
U.S. Geological Survey
U.S. Geological Survey - ScienceBase
mailing and physical
Denver Federal Center, Building 810, Mail Stop 302
Denver
CO
80225
1-888-275-8747
sciencebase@usgs.gov
These data are available in a text file (DEEPSEARCH_Carbonates_Isotopes.csv) which contains seawater carbonate analysis and CTD data for all collected water samples.
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.
comma-delimited text
16.53
ASCII text file
none
0.08
https://www.sciencebase.gov/catalog/file/get/61576cdbd34e0df5fb9fc371
https://www.sciencebase.gov/catalog/item/61576cdbd34e0df5fb9fc371
https://doi.org/10.5066/P9DRU8TP
Data can be downloaded using the Network_Resource_Name links. The first link is a direct link to download the zipped file of data and metadata. The second link points to a landing page for the water parameter data and its metadata. The third link points to a landing page for the entire data release.
None.
These data can be viewed with any text editor software.
20220811
U.S. Geological Survey, Pacific Coastal and Marine Science Center
PCMSC Science Data Coordinator
mailing and physical
2885 Mission Street
Santa Cruz
CA
95060
831-427-4747
pcmsc_data@usgs.gov
Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998