Porewater dissolved organic carbon and associated geochemical data for methane seeps in the Cascadia Margin: Astoria Canyon, Barkley Canyon, Hydrate Ridge, and Bullseye Vent
These data include vertical profiles of concentrations and stable carbon isotope values of dissolved organic carbon (DOC), dissolved inorganic carbon (DIC), total organic carbon (TOC) from sediment cores collected at methane seeps and reference sites. Sediment porosity and dissolved sulfate and methane concentrations are also presented. Methane seeps in Astoria Canyon, Barkley Canyon, Hydrate Ridge, and Bullseye Vent, along the Cascadia Margin, were sampled. These data were collected over two decades and across four cruises: PGC02-08 (CCGS John P. Tully, 2002), Hydrates 2004 Sea Trial (CCGS John P. Tully, 2004), AT50-14 (R/V Atlantis, 2023), and AT50-29B (R/V Atlantis, 2024).
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
"010:12"
]
|
| contactPoint |
{
"fn": "Ellen Lalk",
"@type": "vcard:Contact",
"hasEmail": "mailto:elalk@usgs.gov"
}
|
| description | These data include vertical profiles of concentrations and stable carbon isotope values of dissolved organic carbon (DOC), dissolved inorganic carbon (DIC), total organic carbon (TOC) from sediment cores collected at methane seeps and reference sites. Sediment porosity and dissolved sulfate and methane concentrations are also presented. Methane seeps in Astoria Canyon, Barkley Canyon, Hydrate Ridge, and Bullseye Vent, along the Cascadia Margin, were sampled. These data were collected over two decades and across four cruises: PGC02-08 (CCGS John P. Tully, 2002), Hydrates 2004 Sea Trial (CCGS John P. Tully, 2004), AT50-14 (R/V Atlantis, 2023), and AT50-29B (R/V Atlantis, 2024). |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Digital Data",
"format": "XML",
"accessURL": "https://doi.org/10.26008/1912/bco-dmo.959765.1",
"mediaType": "application/http",
"description": "Landing page for access to the data"
},
{
"@type": "dcat:Distribution",
"title": "Original Metadata",
"format": "XML",
"mediaType": "text/xml",
"description": "The metadata original format",
"downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.fced8c1a-1e0c-4a7a-8caf-b5aa7cd072ab.xml"
}
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|
| identifier | http://datainventory.doi.gov/id/dataset/USGS_fced8c1a-1e0c-4a7a-8caf-b5aa7cd072ab |
| keyword |
[
"CMHRP",
"Coastal and Marine Hazards and Resources Program",
"DOE",
"NETL",
"NSF",
"National Energy Technology Laboratory",
"National Science Foundation",
"U.S. Department of Energy",
"U.S. Geological Survey",
"USGS",
"USGS:fced8c1a-1e0c-4a7a-8caf-b5aa7cd072ab",
"WHCMSC",
"Woods Hole Coastal and Marine Science Center",
"carbon cycle",
"carbon cycling",
"carbon isotope analysis",
"carbon isotopes",
"deep-sea",
"dissolved organic carbon",
"dissolved organic compounds",
"geoscientificInformation",
"interagency programs",
"methane seeps"
]
|
| modified | 2025-05-22T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -126.849944, 44.568359, -124.6027, 48.671875 |
| theme |
[
"geospatial"
]
|
| title | Porewater dissolved organic carbon and associated geochemical data for methane seeps in the Cascadia Margin: Astoria Canyon, Barkley Canyon, Hydrate Ridge, and Bullseye Vent |
