Asphalt volcanism and chemosynthetic life, Campeche Knoll, Gulf of Mexico

MacDonald, I. R., Bohrmann, Gerhard, Escobar, E., Abegg, Friedrich, Blanchon, P., Blinova, V., Brückmann, Warner, Drews, Manuela, Eisenhauer, Anton, Han, X., Heeschen, K., Meier, F., Mortera, C., Naehr, T., Orcutt, B., Bernard, B., Brooks, J. and Farago, M. D. (2004) Asphalt volcanism and chemosynthetic life, Campeche Knoll, Gulf of Mexico Science, 304 . pp. 999-1002. DOI 10.1126/science.1097154 .

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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.

Document Type: Article
Keywords: Asphalt volcanism, Campeche Knoll, Gulf of Mexico
Research affiliation: OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-MG Marine Geosystems
Refereed: Yes
DOI etc.: 10.1126/science.1097154
ISSN: 0036-8075
Date Deposited: 25 Mar 2009 00:06
Last Modified: 09 Sep 2016 11:47

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