Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Fate of Hydrocarbons in Iron-Bearing Mineral Environments during Subduction
Gubkin Russian State Univ Oil & Gas, Natl Res Univ, Dept Phys, Leniskiy Ave 65-1, Moscow 119991, Russia..
Skolkovo Inst Sci & Technol, Bolshoy Blvd 30,Bld 1, Moscow 121205, Russia..
Univ Bayreuth, Bayer Geoinst, Univ Str 30, D-95440 Bayreuth, Germany..
Gubkin Russian State Univ Oil & Gas, Natl Res Univ, Dept Phys, Leniskiy Ave 65-1, Moscow 119991, Russia..
Show others and affiliations
2019 (English)In: Minerals, ISSN 2075-163X, E-ISSN 2075-163X, Vol. 9, no 11, article id 651Article in journal (Refereed) Published
Abstract [en]

Subducted sediments play a key role in the evolution of the continental crust and upper mantle. As part of the deep carbon cycle, hydrocarbons are accumulated in sediments of subduction zones and could eventually be transported with the slab below the crust, thus affecting processes in the deep Earth's interior. However, the behavior of hydrocarbons during subduction is poorly understood. We experimentally investigated the chemical interaction of model hydrocarbon mixtures or natural oil with ferrous iron-bearing silicates and oxides (representing possible rock-forming materials) at pressure-temperature conditions of the Earth's lower crust and upper mantle (up to 2000(+/- 100) K and 10(+/- 0.2) GPa), and characterized the run products using Raman and Mossbauer spectroscopies and X-ray diffraction. Our results demonstrate that complex hydrocarbons are stable on their own at thermobaric conditions corresponding to depths exceeding 50 km. We also found that chemical reactions between hydrocarbons and ferrous iron-bearing rocks during slab subduction lead to the formation of iron hydride and iron carbide. Iron hydride with relatively low melting temperature may form a liquid with negative buoyancy that could transport reduced iron and hydrogen to greater depths.

Place, publisher, year, edition, pages
MDPI , 2019. Vol. 9, no 11, article id 651
Keywords [en]
iron carbide, iron hydride, subduction, hydrocarbons, petroleum, mantle
National Category
Geochemistry
Identifiers
URN: urn:nbn:se:kth:diva-266218DOI: 10.3390/min9110651ISI: 000502267100004Scopus ID: 2-s2.0-85074222031OAI: oai:DiVA.org:kth-266218DiVA, id: diva2:1384964
Note

QC 20200113

Available from: 2020-01-13 Created: 2020-01-13 Last updated: 2020-01-13Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records BETA

Kudriavtcev, DanilKutcherov, Vladimir G.

Search in DiVA

By author/editor
Kudriavtcev, DanilKutcherov, Vladimir G.
By organisation
Energy TechnologyIndustrial Economics and Management (Dept.)
In the same journal
Minerals
Geochemistry

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 5 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf