Evidence of intense methane seepages from molybdenum enrichments in gas hydrate-bearing sediments of the northern South China Sea
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- 作者：Fang Chena ; Yu Hub ; huyu@shou.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Dong Fengc ; feng@scsio.ac.cn" class="auth_mail" title="E-mail the corresponding author ; Xin Zhanga ; Sihai Chenga ; Jun Caoa ; Hongfeng Lua ; Duofu Chenb
- 关键词：Cold seep ; Anaerobic oxidation of methane ; Seepage intensity ; Molybdenum enrichment ; Hydrate ; South China Sea
- 刊名：Chemical Geology
- 出版年：2016
- 出版时间：2 December 2016
- 年：2016
- 卷：443
- 期：Complete
- 页码：173-181
- 全文大小：1833 K
文摘
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A 95-m long, gas hydrate-bearing sediment drill core was investigated.
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Paired occurrences of carbonates and pronounced Mo enrichments in bulk sediments
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Mo enrichment is favored by high methane flux in the uppermost sediments.
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Intense episodes of methane seepage are likely triggered by hydrate dissociation.
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Mo geochemistry can be used to constrain the intensities of past methane seepages.