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Timing and origin o...
Timing and origin of natural gas accumulation in the Siljan impact structure, Sweden
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- Drake, Henrik, 1979- (author)
- Linnéuniversitetet,Institutionen för biologi och miljö (BOM)
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- Roberts, Nick (author)
- British Geological Survey, UK,British Geol Survey, UK
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- Heim, Christine (author)
- Georg-August University, Germany,Georg August Univ, Germany
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- Whitehouse, Martin J., 1962- (author)
- Naturhistoriska riksmuseet,Enheten för geovetenskap,Nordsim
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- Siljeström, Sandra (author)
- RISE,Kemi och material,RISE, Sweden
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- Kooijman, Ellen (author)
- Naturhistoriska riksmuseet,Enheten för geovetenskap
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- Broman, Curt (author)
- Stockholms universitet,Institutionen för geologiska vetenskaper
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- Ivarsson, Magnus (author)
- Swedish Museum of Natural History, Sweden; University of Southern Denmark, Denmark,Swedish Museum of Natural History, Sweden;Univ Southern Denmark, Denmark
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- Åström, Mats E., 1963- (author)
- Linnéuniversitetet,Institutionen för biologi och miljö (BOM)
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(creator_code:org_t)
- 2019-10-18
- 2019
- English.
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In: Nature Communications. - : Nature Publishing Group. - 2041-1723. ; 10:1
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https://doi.org/10.1...
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https://www.nature.c...
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https://nrm.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- Fractured rocks of impact craters may be suitable hosts for deep microbial communities on Earth and potentially other terrestrial planets, yet direct evidence remains elusive. Here, we present a study of the largest crater of Europe, the Devonian Siljan structure, showing that impact structures can be important unexplored hosts for long-term deep microbial activity. Secondary carbonate minerals dated to 80 ± 5 to 22 ± 3 million years, and thus postdating the impact by more than 300 million years, have isotopic signatures revealing both microbial methanogenesis and anaerobic oxidation of methane in the bedrock. Hydrocarbons mobilized from matured shale source rocks were utilized by subsurface microorganisms, leading to accumulation of microbial methane mixed with a thermogenic and possibly a minor abiotic gas fraction beneath a sedimentary cap rock at the crater rim. These new insights into crater hosted gas accumulation and microbial activity have implications for understanding the astrobiological consequences of impacts. © 2019, The Author(s).
Subject headings
- NATURVETENSKAP -- Biologi -- Mikrobiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Microbiology (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geokemi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geochemistry (hsv//eng)
Keyword
- abiotic factor
- anaerobic digestion
- bedrock
- cap rock
- crater
- Devonian
- methane
- methanogenesis
- microbial activity
- oxidation
- shale
- Dalarna
- Siljan
- Sweden
- Mikrobiologi
- The changing Earth
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Drake, Henrik, 1 ...
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Roberts, Nick
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Heim, Christine
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Whitehouse, Mart ...
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Siljeström, Sand ...
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Kooijman, Ellen
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show more...
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Broman, Curt
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Ivarsson, Magnus
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Åström, Mats E., ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Microbiology
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Geochemistry
- Articles in the publication
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Nature Communica ...
- By the university
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RISE
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Linnaeus University
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Stockholm University
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Swedish Museum of Natural History