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(Table 1) Hydrocarbon gas composition of sediment and gas hydrate collected in video-guided grabs from Chapopote

MacDonald, Ian R ; Bohrmann, Gerhard ; Escobar, E ; [et al.]

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In: Supplement to: MacDonald, Ian R; Bohrmann, Gerhard; Escobar, E; Abegg, Friedrich; Blanchon, Paul; Blinova, Valentina N; Brueckmann, Warner; Drews, Manuela; Eisenhauer, Anton; Han, X; Heeschen, Katja U; Meier, Felix; Mortera-Gutierrez, Carlos; Naehr, T; Orcutt, B; Bernard, B; Brroks, J; de Farágo, M (2004): Asphalt volcanism and chemosynthetic life, Campache Knolls, Gulf of Mexico. Science, 304(5673), 999-1002, https://doi.org/10.1126/science.1097154

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Publication Date: 2023-05-12

Description: In the Campeche Knolls, in the southern Gulf of Mexico, lava-like flows of solidified asphalt cover more than 1 square kilometer of the rim of a dissected salt dome at a depth of 3000 meters below sea level. Chemosynthetic tubeworms and bivalves colonize the sea floor near the asphalt, which chilled and contracted after discharge. The site also includes oil seeps, gas hydrate deposits, locally anoxic sediments, and slabs of authigenic carbonate. Asphalt volcanism creates a habitat for chemosynthetic life that may be widespread at great depth in the Gulf of Mexico.

Keywords: 136; Campeche Knoll; Carbon dioxide; Center for Marine Environmental Sciences; Ethane; Isobutane; MARUM; Methane; n-Butane; OTEGA II; Propane; Sample type; see reference(s); SO174/2; SO174/2_136; Sonne; Television-Grab; TVG; δ13C, carbon dioxide, gas hydrate; δ13C, ethane; δ13C, isobutane; δ13C, methane; δ13C, propane

Type: Dataset

Format: text/tab-separated-values, 31 data points

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