L773:1467 4866
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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 03620naa a2200397 4500 | |
| 001 | oai:DiVA.org:su-61762 | |
| 003 | SwePub | |
| 008 | 110829s2011 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-617622 URI |
| 024 | 7 | a https://doi.org/10.1186/1467-4866-12-62 DOI |
| 040 | a (SwePub)su | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a Neubeck, Annau Stockholms universitet,Institutionen för geologiska vetenskaper4 aut0 (Swepub:su)anne9113 |
| 245 | 1 0 | a Formation of H2 and CH4 by weathering of olivine at temperatures between 30 and 70°C |
| 264 | c 2011-06-27 | |
| 264 | 1 | b Springer Science and Business Media LLC,c 2011 |
| 338 | a print2 rdacarrier | |
| 520 | a Hydrocarbons such as CH4 are known to be formed through the Fischer-Tropsch or Sabatier type reactions in hydrothermal systems usually at temperatures above 100°C. Weathering of olivine is sometimes suggested to account for abiotic formation of CH4 through its redox lowering and water splitting properties. Knowledge about the CH4 and H2 formation processes at low temperatures is important for the research about the origin and cause of early Earth and Martian CH4 and for CO2 sequestration. We have conducted a series of low temperature, long-term weathering experiments in which we have tested the CH4 and H2 formation potential of forsteritic olivine.The results show low temperature CH4 production that is probably influenced by chromite and magnetite as catalysts. Extensive analyses of a potential CH4 source trapped in the crystal structure of the olivine showed no signs of incorporated CH4. Also, the available sources of organic carbon were not enough to support the total amount of CH4 detected in our experiments. There was also a linear relationship between silica release into solution and the net CH4 accumulation into the incubation bottle headspaces suggesting that CH4 formation under these conditions could be a qualitative indicator of olivine dissolution.It is likely that minerals such as magnetite, chromite and other metal-rich minerals found on the olivine surface catalyze the formation of CH4, because of the low temperature of the system. This may expand the range of environments plausible for abiotic CH4 formation both on Earth and on other terrestrial bodies. | |
| 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 |
| 653 | a Other earth sciences | |
| 653 | a Övrig geovetenskap | |
| 653 | a geokemi | |
| 653 | a Geochemistry | |
| 700 | 1 | a Nguyen, Ducu Stockholms universitet,Institutionen för geologiska vetenskaper4 aut0 (Swepub:su)dung5782 |
| 700 | 1 | a Bastviken, David4 aut |
| 700 | 1 | a Crill, Patricku Stockholms universitet,Institutionen för geologiska vetenskaper4 aut0 (Swepub:su)pcril |
| 700 | 1 | a Holm, Nilsu Stockholms universitet,Institutionen för geologiska vetenskaper4 aut0 (Swepub:su)nholm |
| 710 | 2 | a Stockholms universitetb Institutionen för geologiska vetenskaper4 org |
| 773 | 0 | t Geochemical Transactionsd : Springer Science and Business Media LLCg 12:6q 12:6x 1467-4866 |
| 856 | 4 | u https://geochemicaltransactions.biomedcentral.com/track/pdf/10.1186/1467-4866-12-6 |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-61762 |
| 856 | 4 8 | u https://doi.org/10.1186/1467-4866-12-6 |
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