{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T21:59:04Z","timestamp":1791323944423,"version":"4.3.1"},"reference-count":34,"publisher":"American Association for the Advancement of Science (AAAS)","issue":"5673","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Science"],"published-print":{"date-parts":[[2004,5,14]]},"abstract":"<jats:p>Fischer-Tropsch type (FTT) synthesis has long been proposed to account for the existence of hydrocarbons in hydrothermal fluids. We show that iron- and chromium-bearing minerals catalyze the abiotic formation of hydrocarbons. In addition to production of methane (CH<jats:sub>4aq<\/jats:sub>), we report abiotic generation of ethane (C<jats:sub>2<\/jats:sub>H<jats:sub>6aq<\/jats:sub>) and propane (C<jats:sub>3<\/jats:sub>H<jats:sub>8aq<\/jats:sub>) by mineral-catalyzed hydrothermal reactions at 390\u00b0Cand 400 bars. Results suggest that the chromium component in ultramafic rocks could be an important factor for FTT synthesis during water-rock interaction in mid-ocean ridge hydrothermal systems. This in turn could help to support microbial communities now recognized in the subsurface at deep-sea vents.<\/jats:p>","DOI":"10.1126\/science.1096033","type":"journal-article","created":{"date-parts":[[2004,4,6]],"date-time":"2004-04-06T00:35:58Z","timestamp":1081211758000},"page":"1002-1005","source":"Crossref","is-referenced-by-count":341,"title":["Hydrocarbons in Hydrothermal Vent Fluids: The Role of Chromium-Bearing Catalysts"],"prefix":"10.1126","volume":"304","author":[{"given":"Dionysis I.","family":"Foustoukos","sequence":"first","affiliation":[{"name":"Department of Geology and Geophysics, University of Minnesota, Minneapolis, MN 55455, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"suffix":"Jr.","given":"William E.","family":"Seyfried","sequence":"additional","affiliation":[{"name":"Department of Geology and Geophysics, University of Minnesota, Minneapolis, MN 55455, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"221","reference":[{"key":"e_1_3_1_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0009-2541(00)00244-8"},{"key":"e_1_3_1_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0009-2541(02)00134-1"},{"key":"e_1_3_1_4_2","doi-asserted-by":"publisher","DOI":"10.1130\/0091-7613(1996)024<0351:ROCDSO>2.3.CO;2"},{"key":"e_1_3_1_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0016-7037(01)00655-X"},{"key":"e_1_3_1_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0016-7037(03)00136-4"},{"key":"e_1_3_1_7_2","doi-asserted-by":"publisher","DOI":"10.1126\/science.285.5430.1055"},{"key":"e_1_3_1_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0012-821X(01)00397-1"},{"key":"e_1_3_1_9_2","doi-asserted-by":"crossref","unstructured":"R. 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