Contribution of siderite-water interaction for the unconventional generation of hydrocarbon gases in the Solimões basin, north-west Brazil
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- 作者：Vincent Milesia ; milesi@ipgp.fr" class="auth_mail" title="E-mail the corresponding author ; Alain Prinzhoferb ; Franç ; ois Guyotc ; Marc Benedettia ; René ; Rodriguesd
- 关键词：Siderite ; Hydrothermal ; Solimõ ; es ; Abiotic ; Hydrocarbon gases ; Reducing conditions
- 刊名：Marine and Petroleum Geology
- 出版年：2016
- 出版时间：March 2016
- 年：2016
- 卷：71
- 期：Complete
- 页码：168-182
- 全文大小：3182 K
文摘
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A new mechanism for generation of hydrocarbon gases in the Solimões basin is proposed.
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Siderite (FeCO3) oxidative dissolution in the source rock yielded transient H2 gas.
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The produced H2 reacted with CO2 or highly mature kerogen, yielding methane.
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This mechanism may account for a significant fraction of methane in the Solimões basin.