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The lower pT limit of deep hydrocarbon synthesis by CaCO3 aqueous reduction
KTH.
KTH.
2017 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 7, 5749Article in journal (Refereed) Published
Abstract [en]

The deep abiogenic synthesis of hydrocarbons is possible under the conditions of the asthenosphere. We have found that this process can also occur under the mineral and thermobaric conditions of subducting slabs. We have investigated the abiogenic synthesis of hydrocarbon systems at pressures of 2.0-6.6 GPa and temperatures of 250-600 degrees C. The determined lower thermobaric limit of the reaction at 280-300 degrees C and 2-3 GPa corresponds to a depth of 70-80 km during cold subduction. The hydrocarbon fluid formed in the slab can migrate upwards through the network of faults and fractures to form petroleum deposits.

Place, publisher, year, edition, pages
NATURE PUBLISHING GROUP , 2017. Vol. 7, 5749
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Geochemistry
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URN: urn:nbn:se:kth:diva-212347DOI: 10.1038/s41598-017-06155-6ISI: 000405746500060OAI: oai:DiVA.org:kth-212347DiVA: diva2:1134823
Note

QC 20170821

Available from: 2017-08-21 Created: 2017-08-21 Last updated: 2017-08-21Bibliographically approved

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