Accelerator Mass Spectrometry (AMS) 14C radiocarbon analysis of authigenic carbonates collected offshore the U.S. Mid- and South Atlantic

Metadata also available as - [Questions & Answers] - [Parseable text] - [XML]

Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Jason D. Chaytor
Originator: Nancy G. Prouty
Publication_Date: 20220811
Title:

Accelerator Mass Spectrometry (AMS) 14C radiocarbon analysis of authigenic carbonates collected offshore the U.S. Mid- and South Atlantic

Geospatial_Data_Presentation_Form: comma-delimited text
Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/P9DRU8TP

Publication_Information:

Publication_Place:

Pacific Coastal and Marine Science Center, Santa Cruz, California

Publisher: U.S. Geological Survey

Online_Linkage: https://doi.org/10.5066/P9DRU8TP
Larger_Work_Citation:

Citation_Information:

Originator: Nancy G. Prouty
Originator: Jason D. Chaytor
Publication_Date: 2022
Title:

Geochemistry, radiocarbon, and mineralogy data of authigenic carbonates collected offshore the U.S. Mid- and South Atlantic in 2018 and 2019.

Geospatial_Data_Presentation_Form: tabular digital data
Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/P9DRU8TP

Publication_Information:

Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, CA
Publisher: U.S. Geological Survey

Online_Linkage: https://doi.org/10.5066/P9DRU8TP

Description:

Abstract:

Results are presented from Accelerator Mass Spectrometry (AMS) carbon-14 radiocarbon dating of carbonate rock samples collected from seep fields offshore the U.S. Mid- and South Atlantic in 2018 and 2019. Samples were collected as a fingerprint to past hydrocarbon seep activity, fluid source, and depositional environment.

Purpose:

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.

Supplemental_Information:

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=2019-620-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.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20180828
Ending_Date: 20190427

Currentness_Reference: Ground condition at time data were collected.

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -76.1907
East_Bounding_Coordinate: -74.7924
North_Bounding_Coordinate: 35.9274
South_Bounding_Coordinate: 32.4938

Keywords:

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: environment
Theme_Keyword: geoscientificInformation

Theme:

Theme_Keyword_Thesaurus: Data Categories for Marine Planning
Theme_Keyword: Habitat

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: Chemical analysis
Theme_Keyword: radiometric dating
Theme_Keyword: carbon-14 analysis

Theme:

Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: ecosystems
Theme_Keyword: chemical oceanography

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Hazards and Resources Program
Theme_Keyword: CMHRP
Theme_Keyword: Pacific Coastal and Marine Science Center
Theme_Keyword: PCMSC

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:615770f9d34e0df5fb9fc37d

Place:

Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: Atlantic Ocean

Access_Constraints: None
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. 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.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

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

Contact_Person: PCMSC Science Data Coordinator

Contact_Address:

Address_Type: mailing and physical
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060

Contact_Voice_Telephone: 831-427-4747
Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov

Data_Set_Credit: Jason D Chaytor (USGS WHCMSC)
Native_Data_Set_Environment: Microsoft Excel for Microsoft 365 MSO
Cross_Reference:

Citation_Information:

Originator: Minze Stuiver
Originator: Henry A. Polach
Publication_Date: 1977
Title: Discussion reporting of 14C data
Geospatial_Data_Presentation_Form: publication
Other_Citation_Details:

Stuiver, M., and Polach, H.A., 1977, Discussion reporting of 14C data: Radiocarbon, v. 19, pp. 355-363.

Online_Linkage: https://doi.org/10.1017/S0033822200003672

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

All samples submitted to NOSAMS are checked for accuracy via the primary standard for 14C measurements - NBS Oxalic Acid I (NIST-SRM-4990). Every group of samples processed includes an appropriate blank, analyzed concurrently. Process blank materials include but are not limited to Carrara marble (IAEA C-1) and Icelandic Doublespar (Third International Radiocarbon Intercomparison F) for inorganic carbon.

Logical_Consistency_Report: Data have been check for omissions and duplicates.
Completeness_Report:

Dataset represents analysis of a set of subsamples from larger primary samples recovered during the field activities. Primary samples were selected for collection at a limited number of sites during dives and represent only a small portion of the exposed authigenic carbonate material.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Positioning data for HOV Alvin (AT41) and ROV Jason II (RB1903) are derived from the fusion of several different sensors installed on the underwater vehicles (doppler velocity logs, gyrocompasses and inertial navigation systems) and the surface vessels (ultra-short baseline acoustic transponders and differential/augmented GPS receivers). Based on the stated accuracy of each of the sensors on the ships and vehicles, horizontal location accuracy is expected to be be better than 10 m.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

Depth accuracy based on calibrated pressure sensors is 0.1 meters

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator:

National Ocean Sciences Accelerator Mass Spectrometry (NOSAMS) facility

Publication_Date: 20210913
Title: Accelerator Mass Spectrometery Carbon-14 Radiocarbon Dating
Geospatial_Data_Presentation_Form: publication
Online_Linkage: https://www2.whoi.edu/site/nosams/

Type_of_Source_Media: Digital and/or Hardcopy
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20210913

Source_Currentness_Reference: Date when lab analyses were completed

Source_Citation_Abbreviation: AMS carbon-14 dating
Source_Contribution:

An accelerator mass spectrometer (AMS) was used to measure inorganic radiocarbon

Process_Step:

Process_Description:

Authigenic carbonate samples were collected during HOV and ROV dives. Samples were rinsed with freshwater, allowed to dry, photographed and stored at room temperature.

Process_Date: 2020

Process_Step:

Process_Description:

Authigenic carbonate samples were cut using a diamond saw to expose fresh surfaces. Subsamples were isolated using trim saws, diamond drills and hand scribes.

Source_Used_Citation_Abbreviation: AMS carbon-14 dating
Process_Date: 2021
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Jason Chaytor
Contact_Organization: USGS

Contact_Position: Research Geologist
Contact_Address:

Address_Type: mailing and physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: USA

Contact_Voice_Telephone: (508) 457-2351
Contact_Electronic_Mail_Address: jchaytor@usgs.gov

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Point
Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 13

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.0001
Longitude_Resolution: 0.0001
Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: D_WGS_1984
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257224

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label:

A comma-delimited text file with the first line being a header line.

Entity_Type_Definition:

Output of AMS carbon-14 radiocarbon dating of authigenic carbonate samples.

Entity_Type_Definition_Source: Producer defined.

Attribute:

Attribute_Label: Cruise ID
Attribute_Definition:

Identification number of DEEPSEARCH cruise on which samples were collected.

Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: AT41
Enumerated_Domain_Value_Definition:

AT41=R/V Atlantis [AT] and sequential cruise number. The corresponding USGS Field Activity Number (FAN) for this sample collection is 2018-042-FA.

Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: RB1903
Enumerated_Domain_Value_Definition:

NOAA Ship Ron Brown [RB] and [20XX year, month]. The corresponding USGS Field Activity Numbers (FANs) for this sample collection are 2019-003-FA and 2019-620-FA.

Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute:

Attribute_Label: Vessel
Attribute_Definition: Name of ship on which samples were collected
Attribute_Definition_Source: Producer defined.
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: R/V Atlantis
Enumerated_Domain_Value_Definition:

The R/V Atlantis is a research vessel owned and operated by Woods Hole Oceanographic Institution

Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: NOAA Ship Ronald H. Brown
Enumerated_Domain_Value_Definition:

The NOAA Ship Ronald H. Brown is a research vessel owned and operated by the National Oceanic and Atmospheric Administration (NOAA)

Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute:

Attribute_Label: Site
Attribute_Definition: Site Name where samples were collected
Attribute_Definition_Source: Producer defined.
Attribute_Domain_Values:

Unrepresentable_Domain: List of Site names

Attribute:

Attribute_Label: Date Collected
Attribute_Definition: Date [YYYY-MM-DD]
Attribute_Definition_Source: Producer defined.
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2018-08-28
Range_Domain_Maximum: 2019-04-27

Attribute:

Attribute_Label: Sample ID
Attribute_Definition:

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, 1=first rock collected).

Attribute_Definition_Source: Producer defined.
Attribute_Domain_Values:

Unrepresentable_Domain: List of sample IDs

Attribute:

Attribute_Label: Depth
Attribute_Definition: meters below sea level
Attribute_Definition_Source: Producer defined.
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 235
Range_Domain_Maximum: 2165
Attribute_Units_of_Measure: meters
Attribute_Measurement_Resolution: 1

Attribute:

Attribute_Label: Latitude
Attribute_Definition: Latitude of sample location
Attribute_Definition_Source: Producer defined.
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 32.4938
Range_Domain_Maximum: 35.9274
Attribute_Units_of_Measure: decimal degrees
Attribute_Measurement_Resolution: 0.0001

Attribute:

Attribute_Label: Longitude
Attribute_Definition: Longitude of sample location
Attribute_Definition_Source: Producer defined.
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -76.1907
Range_Domain_Maximum: -74.7924
Attribute_Units_of_Measure: decimal degrees
Attribute_Measurement_Resolution: 0.0001

Attribute:

Attribute_Label: Split ID
Attribute_Definition:

U.S. Geological Survey (USGS) Woods Hole Coastal and Marine Science Center (WHCMSC) unique subsample ID based on the field activity number (e.g., 18042), unique cruise sample ID (e.g. A4967-R2), analysis type (e.g., RC=radiocarbon) and sequential number of subsamples analyzed

Attribute_Definition_Source: Producer defined.
Attribute_Domain_Values:

Unrepresentable_Domain: Unique subsample ID

Attribute:

Attribute_Label: Date Reported
Attribute_Definition:

Date analysis results returned from the National Ocean Sciences Accelerator Mass Spectrometry (NOSAMS) facility

Attribute_Definition_Source: Producer defined.
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 07/24/2020
Range_Domain_Maximum: 09/13/2021

Attribute:

Attribute_Label: Type
Attribute_Definition: Sample type submitted for dating
Attribute_Definition_Source: Producer defined.
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: authigenic carbonate
Enumerated_Domain_Value_Definition: material extracted from a sample of authigenic carbonate
Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: mollusc
Enumerated_Domain_Value_Definition: Mollusc shell extracted from authigenic carbonate sample
Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute:

Attribute_Label: Process
Attribute_Definition: Method used by NOSAMS to produce CO2 from samples
Attribute_Definition_Source: Producer defined.
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: hydrolysis
Enumerated_Domain_Value_Definition: acid hydrolysis process
Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute:

Attribute_Label: Accession #
Attribute_Definition: Unique analysis ID from NOSAMS
Attribute_Definition_Source: Producer defined.
Attribute_Domain_Values:

Unrepresentable_Domain: unique analysis ID number

Attribute:

Attribute_Label: F Modern
Attribute_Definition:

The measured deviation of the 14C/12C ratio from Modern. Modern is defined as 95 percent of the 14C concentration of the National Bureau of Standards Oxalic Acid I standard (SRM 4990B) normalized to d13C VPDB (-19ppm) in 1950 AD (VPDB = Vienna Pee Dee Belemnite geological standard.

Attribute_Definition_Source:

standard reporting values in carbon-14 radicarbon analysis, defined in Stuiver and Polach (1977)

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.0658
Range_Domain_Maximum: 0.6382
Attribute_Units_of_Measure: unitless
Attribute_Measurement_Resolution: 0.0001

Attribute:

Attribute_Label: Fm Error
Attribute_Definition:

Fraction modern (Fm) Error is a measurement of the deviation of the delta-Carbon-14/delta-Carbon-12 ratio of a sample from modern carbon (Stuiver and Polach, 1977).

Attribute_Definition_Source:

standard reporting values in carbon-14 radicarbon analysis, defined in Stuiver and Polach (1977)

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.0008
Range_Domain_Maximum: 0.0016
Attribute_Units_of_Measure: unitless
Attribute_Measurement_Resolution: 0.0001

Attribute:

Attribute_Label: Age
Attribute_Definition:

Conventional Radiocarbon Age calculated using the radiocarbon decay equation (Stuiver and Polach, 1977). >Modern indicates a fraction modern greater than 1 with Modern defined as 95% of the radiocarbon concentration in AD 1950 of National Bureau of Standards Oxalic Acid I

Attribute_Definition_Source: Producer defined.
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3,610
Range_Domain_Maximum: 21,900
Attribute_Units_of_Measure: years
Attribute_Measurement_Resolution: 10

Attribute:

Attribute_Label: Age Err
Attribute_Definition: Standard error for Conventional Radiocarbon Age.
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 20
Range_Domain_Maximum: 170
Attribute_Units_of_Measure: years
Attribute_Measurement_Resolution: 5

Attribute:

Attribute_Label: d13C
Attribute_Definition:

Delta-C-13 is a measure of the ratio of stable isotopes Carbon-13:Carbon-12, reported in parts per thousand (per mil).

Attribute_Definition_Source: defined in Stuiver and Polach (1977)
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -50.93
Range_Domain_Maximum: -8.13
Attribute_Units_of_Measure: parts per thousand (per mil)
Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: d13C Source
Attribute_Definition:

Method by which d13C was obtained for the sample (measured=measured by NOSAMS during sample analysis)

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Unrepresentable_Domain:

measured by the National Ocean Sciences Accelerator Mass Spectrometry (NOSAMS) facility during sample analysis

Attribute:

Attribute_Label: D14C
Attribute_Definition:

Report the D14C value as defined in Stuiver and Pollach (1977) as the relative difference between the absolute international standard (base year 1950) and sample activity corrected for age and d13C. The D14C is age corrected to account for decay that took place between collection (or death) and the time of measurement so that two measurements of the same sample made years apart will produce the same calculated D14C result. Collection year must be specified in order for D14C results to be calculated.

Attribute_Definition_Source: Stuiver and Pollach (1977)
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -367.05
Range_Domain_Maximum: -934.70
Attribute_Units_of_Measure: per mil
Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Authigenic Carbonate Material
Attribute_Definition:

Type of material sampled from within the subsample (groundmass, cement, or shell)

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Cement
Enumerated_Domain_Value_Definition:

Secondary calcium carbonate binding groundmass components together

Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Bulk
Enumerated_Domain_Value_Definition:

Undifferentiated subsample containing groundmass and cement or unprocessed mollusc shell material

Enumerated_Domain_Value_Definition_Source: Producer defined

Overview_Description:

Entity_and_Attribute_Overview: The first line of the tab-delimited text file is a header line.
Entity_and_Attribute_Detail_Citation: U.S. Geological Survey

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: GS ScienceBase

Contact_Address:

Address_Type: mailing address
Address: Denver Federal Center, Building 810, Mail Stop 302
City: Denver
State_or_Province: CO
Postal_Code: 80225
Country: United States

Contact_Voice_Telephone: 1-888-275-8747
Contact_Electronic_Mail_Address: sciencebase@usgs.gov

Resource_Description:

These data are available in a text file (DEEPSEARCH_AC_radiocarbon.csv) which contains radiocarbon results from selected samples.

Distribution_Liability:

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.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: comma-delimited text
Format_Version_Number: 16.53
Format_Information_Content: ASCII text file
File_Decompression_Technique: none
Transfer_Size: 0.03

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://www.sciencebase.gov/catalog/file/get/61576cdbd34e0df5fb9fc371

Fees: None.

Technical_Prerequisites: These data can be viewed with any text editor software.

Metadata_Reference_Information:

Metadata_Date: 20220811
Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

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

Contact_Person: PCMSC Science Data Coordinator

Contact_Address:

Address_Type: mailing and physical
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060

Contact_Voice_Telephone: 831-427-4747
Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov

Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

This page is <https://cmgds.marine.usgs.gov/catalog/pcmsc/DataReleases/ScienceBase/DR_P9DRU8TP/DeepSearch_AC_radiocarbon.html>