Molecular (C1-C5 hydrocarbon, CO2, O2, and N2) and δ13C-CH4 composition of pressure core, void, and hydrate gases from the Terrebonne Basin, Gulf of America (Gulf of Mexico), Walker Ridge 313 Site
These data include composition of void gas, pressure core gas, and hydrate gas samples collected from the Terrebonne Basin in the Gulf of America (Gulf of Mexico) at Walker Ridge Site H, Holes H003 and H002. Cores were collected during drilling as part of the Deepwater Hydrate Coring Expedition (UT-GOM2-2) in August 2023. This U.S. Department of Energy funded project was focused on better understanding microbial methane generation in marine sediments and characterizing coarse-grained gas hydrate reservoirs. Sediments were recovered continuously down to 155 meters below the seafloor and as spot cored intervals down to 861 meters below the seafloor. Cores were recovered using both conventional and pressure cores. Gas samples were collected from both conventional and pressure cores in order to understand the source of gases in Terrebonne Basin sediments. Gas samples were analyzed for C1-C5 hydrocarbon, CO2, O2, N2, and δ13C-CH4 composition using gas chromatography and cavity ringdown spectroscopy.
Find Related Datasets
Search by Tags
Click any tag below to search for similar datasets
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[ "010:12" ] |
| contactPoint |
{ "fn": "Stephen Phillips", "@type": "vcard:Contact", "hasEmail": "mailto:scphillips@usgs.gov" } |
| description | These data include composition of void gas, pressure core gas, and hydrate gas samples collected from the Terrebonne Basin in the Gulf of America (Gulf of Mexico) at Walker Ridge Site H, Holes H003 and H002. Cores were collected during drilling as part of the Deepwater Hydrate Coring Expedition (UT-GOM2-2) in August 2023. This U.S. Department of Energy funded project was focused on better understanding microbial methane generation in marine sediments and characterizing coarse-grained gas hydrate reservoirs. Sediments were recovered continuously down to 155 meters below the seafloor and as spot cored intervals down to 861 meters below the seafloor. Cores were recovered using both conventional and pressure cores. Gas samples were collected from both conventional and pressure cores in order to understand the source of gases in Terrebonne Basin sediments. Gas samples were analyzed for C1-C5 hydrocarbon, CO2, O2, N2, and δ13C-CH4 composition using gas chromatography and cavity ringdown spectroscopy. |
| distribution |
[ { "@type": "dcat:Distribution", "title": "Original Metadata", "format": "XML", "mediaType": "text/xml", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.26031589-92db-464b-9ee1-1ae82c713d3e.xml" } ] |
| identifier | http://datainventory.doi.gov/id/dataset/USGS_26031589-92db-464b-9ee1-1ae82c713d3e |
| keyword |
[ "CMHRP", "Coastal and Marine Hazards and Resources Program", "DOE", "Gulf of America", "Gulf of Mexico", "NETL", "National Energy Technology Laboratory", "Terrebonne Basin", "U.S. Department of Energy", "U.S. Geological Survey", "USGS", "USGS:26031589-92db-464b-9ee1-1ae82c713d3e", "UT-Austin", "University of Texas at Austin", "WHCMSC", "Walker Ridge Protraction Area", "Woods Hole Coastal and Marine Science Center", "carbon cycle", "chemical analysis", "core analysis", "diagenesis", "drilling and coring", "gas analysis", "gas chromatography", "geoscientificInformation", "interagency programs", "light stable isotope analysis", "methane hydrates", "piston coring", "rotary drilling" ] |
| modified | 2026-05-18T00:00:00Z |
| publisher |
{ "name": "U.S. Geological Survey", "@type": "org:Organization" } |
| spatial | -91.67608, 26.66228, -91.67599, 26.66260 |
| theme |
[ "geospatial" ] |
| title | Molecular (C1-C5 hydrocarbon, CO2, O2, and N2) and δ13C-CH4 composition of pressure core, void, and hydrate gases from the Terrebonne Basin, Gulf of America (Gulf of Mexico), Walker Ridge 313 Site |
