Full View Normal View

data

Isotopic composition of particulates from sediment trap, northern Gulf of Mexico, August 25, 2010 - March 18, 2016

Ecosystem Impacts of Oil and Gas Inputs to the Gulf-2 (ECOGIG-2)

DOI:
10.7266/N737775J
 
UDI:
R4.x268.000:0082
Last Update:
Mar 23 2018 21:53 UTC
 
Dataset Author(s):
Jeff Chanton, Uta Passow
Point of Contact:
Passow, Uta
University of California Santa Barbara / Marine Science Institute
Bldg 520 Rm 4002 Fl 4L
Santa Barbara, California  93106
USA
uta.passow@lifesci.ucsb.edu
Funding Source:
RFP-IV
Data Collection Period:
2010-08-25 to 2016-03-18

Identified Submitted Review Available
3 3 3 3

Abstract:

This dataset contains sediment trap particulates isotopic composition from three stations. The DWH sediment trap site (Deep Water Horizon, also referred to as R/V Oceanus Site 26, or OC-26; 28°40'N, 88°21.6'W; 1660 m deep; 120 meters above the seafloor; and for some of the time, at 30 meters above the seafloor). The Seep site sediment was located near a large natural hydrocarbon seep, GC-600, (27°22.5’N, 90°30.6’W; 1380 m deep). The reference site was located is located in the Atwater Valley lease block and approximates a reference or background site (Reference site, (AT357, 27°31.5 N, 89°42.6 W; 1160 m deep). The data are organized by site, date (Month/day/year = M/D/Y) of the start of the collection period which lasted about 18 days, and by isotope. Three isotopes are reported, D14C, d13C and d34S.

Purpose:

To gauge the recovery and post-spill baseline conditions in the northern Gulf of Mexico following the 2010 Deepwater Horizon (DWH) oil spill.

Theme Keywords:

istopes, sediment trap, particulates, AT357, GC600, OC26, Deepwater Horizon, R/V Oceanus Site 26, Atwater Valley

File Format:

xls

Dataset Downloads:

2

Isotopic composition of particulates from sediment trap, northern Gulf of Mexico, August 25, 2010 - March 18, 2016



Identification Information
Distribution Information
Metadata Maintenance Information

Metadata: 
  File identifier: 
      R4.x268.000-0082-metadata.xml
  Language: 
      eng; USA
  Character set: 
    Character set code: 
      utf8
  Hierarchy level: 
    Scope code: 
      dataset
  Metadata author: 
    Responsible party: 
      Individual name: 
          Brian Dixon
      Organisation name: 
          University of Georgia / Department of Marine Sciences
      Position name: 
          Data Manager
      Contact info: 
        Contact: 
          Phone: 
            Telephone: 
              Voice: 
                  2182487483
              Facsimile: 
          Address: 
            Address: 
              Delivery point: 
                  Marine Sciences Building
                  325 Sanford Dr
              City: 
                  Athens
              Administrative area: 
                  Georgia
              Postal code: 
                  30602
              Country: 
                  USA
              Electronic mail address: 
                  dixonb@uga.edu
      Role: 
        Role code: 
          pointOfContact
  Date stamp: 
      2018-08-11T13:42:37+00:00
  Metadata standard name: 
      ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
  Metadata standard version: 
      ISO 19115-2:2009(E)
  Dataset URI: 
      https://data.gulfresearchinitiative.org/metadata/R4.x268.000:0082
Return To Index

Identification info: Data identification: Citation: Citation: Title: Isotopic composition of particulates from sediment trap, northern Gulf of Mexico, August 25, 2010 - March 18, 2016 Alternate title: Date: Date: Date: 2017-10-06 Date type: Date type code: publication Abstract: This dataset contains sediment trap particulates isotopic composition from three stations. The DWH sediment trap site (Deep Water Horizon, also referred to as R/V Oceanus Site 26, or OC-26; 28°40'N, 88°21.6'W; 1660 m deep; 120 meters above the seafloor; and for some of the time, at 30 meters above the seafloor). The Seep site sediment was located near a large natural hydrocarbon seep, GC-600, (27°22.5’N, 90°30.6’W; 1380 m deep). The reference site was located is located in the Atwater Valley lease block and approximates a reference or background site (Reference site, (AT357, 27°31.5 N, 89°42.6 W; 1160 m deep). The data are organized by site, date (Month/day/year = M/D/Y) of the start of the collection period which lasted about 18 days, and by isotope. Three isotopes are reported, D14C, d13C and d34S. Purpose: To gauge the recovery and post-spill baseline conditions in the northern Gulf of Mexico following the 2010 Deepwater Horizon (DWH) oil spill. Status: Progress code: completed Point of contact: Responsible party: Individual name: Uta Passow Organisation name: University of California Santa Barbara / Marine Science Institute Position name: Researcher Contact info: Contact: Phone: Telephone: Voice: 8058932363 Facsimile: Address: Address: Delivery point: Bldg 520 Rm 4002 Fl 4L City: Santa Barbara Administrative area: California Postal code: 93106 Country: USA Electronic mail address: uta.passow@lifesci.ucsb.edu Role: Role code: pointOfContact Point of contact: Responsible party: Individual name: Jeffrey Paul Chanton Organisation name: Florida State University / Department of Earth, Ocean, and Atmospheric Science Position name: Professor Contact info: Contact: Phone: Telephone: Voice: 8506447493 Facsimile: Address: Address: Delivery point: 1017 Academic Way PO Box 3064520 City: Tallahassee Administrative area: Florida Postal code: 32306 Country: USA Electronic mail address: jchanton@fsu.edu Role: Role code: author Descriptive keywords: Keywords: Keyword: istopes Keyword: sediment trap Keyword: particulates Keyword: AT357 Keyword: GC600 Keyword: OC26 Keyword: Deepwater Horizon Keyword: R/V Oceanus Site 26 Keyword: Atwater Valley Type: Keyword type code: theme Descriptive keywords: Keywords: Keyword: northern Gulf of Mexico Type: Keyword type code: place Language: eng; USA Topic category: Topic category code: environment Topic category: Topic category code: oceans Extent: Extent: Geographic element: Geographic bounding box: West bound longitude: -90.51 East bound longitude: -88.36 South bound latitude: 27.375 North bound latitude: 28.666667 Geographic element: BoundingPolygon: Polygon: gml:MultiPoint: gml:pointMember: Point: gml:pos: 27.525 -89.71 gml:pointMember: Point: gml:pos: 27.375 -90.51 gml:pointMember: Point: gml:pos: 28.666667 -88.36 Temporal element: Temporal extent: Extent: Time period: Description: ground condition Begin date: 2010-08-25 End date: 2016-03-18 Supplemental Information: Date (Month, Day, Year). D14C, d13C, d34S (parts per thousand). Results are presented relative to VPDB or CDT (δ13C or 34S = (Rsam/Rstd -1) X 1000, where R = 13C/12C or 34S/32S), Depth (m) Site Latitude (decimal degrees) Longitude (decimal degrees) OC26/DWH 28.666667 -88.36 GC600/Seep 27.375 -90.51 AT357/Reference 27.525 -89.71|Prior to isotope analysis, sample splits were dried, ground, soaked briefly with 10% HCl to remove carbonates, rinsed with ultra pure water and freeze dried. Samples were then analyzed for δ 13C, Δ14C and δ34S. The δ13C was measured on a Carlo Erba elemental analyzer coupled to a Delta XP Thermo Finnegan isotope ratio mass spectrometer. Analytical reproducibility was on the order of 0.2 ‰. Stable sulfur isotopes (34S‰) were analyzed at the Stable Isotope Core Facility at Washington State University (Pullman, Washington). Analytical error measured as the coefficient of variation of replicate samples was 0.4‰ for δ34S. Results are presented relative to VPDB or CDT (δ13C or 34S = (Rsam/Rstd -1) X 1000, where R = 13C/12C or 34S/32S). Samples for ∆14C-POC analysis were combusted and purified CO2 prepared as graphite targets and analyzed by accelerator mass spectrometry [Vogel, J.S., Southron, J.R., Nelson, D.E., & Brown, T.A. (1984). Performance of catalytically condensed carbon for use in accelerator mass spectrometry. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 5(2): 289-293. doi: 10.1016/0168-583X(84)90529-9]. Values are reported according to the notation put forth in [Stuiver, M. & Polach, H.A. (1977). Discussion: Reporting of 14C Data. Radiocarbon. 19(3): 355-363]. The notation normalizes the radiocarbon content of a sample to a nominal δ13C value (-25‰) and the collection time. The scale is linear and starts at -1000‰ when a sample has essentially 0% modern carbon which would represent petroleum residue. Analytical reproducibility was on the order of 3 ‰. Samples were run on AMS facilities at Woods Hole Oceanographic Institution (NOSAMS) or the University of Georgia Center for Applied Isotope Studies. For all three isotopic scales, increases in values denote increases in the relative amount of the heavy isotope 13C, 14C or 34S. Conversely, decreases in or ∆) values denote depletion in the heavy isotope, 13C, 14C or 34S, relative to the standard material. Stuiver M & Polach HA (1977) Reporting Of 14C Data. Radiocarbon 19:355-263.|13C = Carlo Erba elemental analyzer coupled to a Delta XP Thermo Finnegan isotope ratio mass spectrometer. 14C = Samples were run on AMS facilities at Woods Hole Oceanographic Institution (NOSAMS) or the University of Georgia Center for Applied Isotope Studies. d34S = Stable Isotope Core Facility at Washington State University (Pullman, Washington).|Samples were collected roughly every 18 days, from 2010 to 2016.|see methods|
Return To Index

Distribution info: Distribution: Distributor: Distributor: Distributor contact: Responsible party: Organisation name: Gulf of Mexico Research Initiative Information and Data Cooperative (GRIIDC) Contact info: Contact: Phone: Telephone: Voice: 3618253604 Address: Address: Delivery point: 6300 Ocean Drive City: Corpus Christi Administrative area: TX Postal code: 78412 Country: USA Electronic mail address: griidc@gomri.org Online Resource: Online Resource: Linkage: URL: https://data.gulfresearchinitiative.org Role: Role code: distributor Distributor format: Format: Name: xls Version: inapplicable File decompression technique: Distributor transfer options: Digital transfer options: Transfer size: 0.0404 Online: Online Resource: Linkage: URL: https://data.gulfresearchinitiative.org/data/R4.x268.000:0082 Protocol: https
Return To Index

Metadata maintenance: Maintenance information: Maintenance and update frequency: unknown Maintenance note: This ISO metadata record was automatically generated from information provided to GRIIDC for dataset: R4.x268.000:0082 on 2018-09-24T23:42:35+00:00
Return To Index