Sökning: onr:"swepub:oai:DiVA.org:nrm-2875" > Ancient microbial a...
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000 | 06236naa a2200721 4500 | |
001 | oai:DiVA.org:nrm-2875 | |
003 | SwePub | |
008 | 181016s2018 | |||||||||||000 ||eng| | |
009 | oai:DiVA.org:nrm-2979 | |
009 | oai:DiVA.org:lnu-77641 | |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-28752 URI |
024 | 7 | a https://doi.org/10.3390/geosciences80602112 DOI |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-29792 URI |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-776412 URI |
040 | a (SwePub)nrmd (SwePub)lnu | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a ref2 swepub-contenttype |
072 | 7 | a art2 swepub-publicationtype |
100 | 1 | a Drake, Henrik,d 1979-u Linnéuniversitetet,Institutionen för biologi och miljö (BOM),Linnæus University, Department of Biology and Environmental Science, 39182 Kalmar, Sweden4 aut0 (Swepub:lnu)edrhe |
245 | 1 0 | a Ancient microbial activity in deep hydraulically conductive fracture zones within the Forsmark target area for deep geological nuclear waste disposal, Sweden |
264 | c 2018-06-11 | |
264 | 1 | b MDPI AG,c 2018 |
338 | a print2 rdacarrier | |
520 | a Recent studies reveal that organisms from all three domains of life—Archaea, Bacteria, and even Eukarya—can thrive under energy-poor, dark, and anoxic conditions at large depths in the fractured crystalline continental crust. There is a need for an increased understanding of the processes and lifeforms in this vast realm, for example, regarding the spatiotemporal extent and variability of the different processes in the crust. Here, we present a study that set out to detect signs of ancient microbial life in the Forsmark area—the target area for deep geological nuclear waste disposal in Sweden. Stable isotope compositions were determined with high spatial resolution analyses within mineral coatings, and mineralized remains of putative microorganisms were studied in several deep water-conducting fracture zones (down to 663 m depth), from which hydrochemical and gas data exist. Large isotopic variabilities of 13Ccalcite (?36.2 to +20.2‰V-PDB) and 34Spyrite (?11.7 to +37.8‰V-CDT) disclose discrete periods of methanogenesis, and potentially, anaerobic oxidation of methane and related microbial sulfate reduction at several depth intervals. Dominant calcite–water disequilibrium of 18O and 87Sr/86Sr precludes abundant recent precipitation. Instead, the mineral coatings largely reflect an ancient archive of episodic microbial processes in the fracture system, which, according to our microscale Rb–Sr dating of co-genetic adularia and calcite, date back to the mid-Paleozoic. Potential Quaternary precipitation exists mainly at ~400 m depth in one of the boreholes, where mineral–water compositions corresponded. | |
650 | 7 | a NATURVETENSKAPx Geovetenskap och miljövetenskapx Annan geovetenskap och miljövetenskap0 (SwePub)105992 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Other Earth and Related Environmental Sciences0 (SwePub)105992 hsv//eng |
650 | 7 | a NATURVETENSKAPx Geovetenskap och miljövetenskapx Geokemi0 (SwePub)105062 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Geochemistry0 (SwePub)105062 hsv//eng |
650 | 7 | a NATURVETENSKAPx Geovetenskap och miljövetenskapx Oceanografi, hydrologi och vattenresurser0 (SwePub)105092 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Oceanography, Hydrology and Water Resources0 (SwePub)105092 hsv//eng |
650 | 7 | a NATURVETENSKAPx Geovetenskap och miljövetenskapx Miljövetenskap0 (SwePub)105022 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Environmental Sciences0 (SwePub)105022 hsv//eng |
650 | 7 | a NATURVETENSKAPx Geovetenskap och miljövetenskapx Multidisciplinär geovetenskap0 (SwePub)105032 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Geosciences, Multidisciplinary0 (SwePub)105032 hsv//eng |
650 | 7 | a NATURVETENSKAPx Geovetenskap och miljövetenskapx Geologi0 (SwePub)105042 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Geology0 (SwePub)105042 hsv//eng |
653 | a deep biosphere | |
653 | a crystalline crust | |
653 | a stable isotopes | |
653 | a methanogenesis | |
653 | a sulfate reduction | |
653 | a calcite | |
653 | a pyrite | |
653 | a bedrock fractures | |
653 | a nuclear waste disposal | |
653 | a The changing Earth | |
653 | a Den föränderliga jorden | |
653 | a Miljövetenskap | |
700 | 1 | a Ivarsson, Magnus,d 1975-u Naturhistoriska riksmuseet,Enheten för paleobiologi,University of Southern Denmark, Department of Biology and Nordic Center for Earth Evolution, Campusvej 55, Odense M, DK-5230, Denmark4 aut0 (Swepub:nrm)magnivar |
700 | 1 | a Tillberg, Mikaelu Linnéuniversitetet,Institutionen för biologi och miljö (BOM),Department of Biology and Environmental Science, Linnaeus University, 392 31 Kalmar, Sweden4 aut0 (Swepub:lnu)mitiaa |
700 | 1 | a Whitehouse, Martinu Naturhistoriska riksmuseet,Enheten för geovetenskap,Swedish Museum of Natural History, Sweden4 aut0 (Swepub:nrm)martwhit |
700 | 1 | a Kooijman, Ellen,d 1981-u Naturhistoriska riksmuseet,Enheten för geovetenskap,Swedish Museum of Natural History, Sweden4 aut0 (Swepub:nrm)ellekooi |
710 | 2 | a Linnéuniversitetetb Institutionen för biologi och miljö (BOM)4 org |
773 | 0 | t Geosciencesd : MDPI AGg 8q 8x 2076-3263 |
856 | 4 | u http://www.mdpi.com/2076-3263/8/6/211/pdf |
856 | 4 | u https://res.mdpi.com/d_attachment/geosciences/geosciences-08-00211/article_deploy/geosciences-08-00211.pdf |
856 | 4 | u https://doi.org/10.3390/geosciences8060211 |
856 | 4 | u https://nrm.diva-portal.org/smash/get/diva2:1267060/FULLTEXT01.pdfx primaryx Raw objecty fulltext:print |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-2875 |
856 | 4 8 | u https://doi.org/10.3390/geosciences8060211 |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-2979 |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-77641 |
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