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Fate of Hydrocarbon...
Fate of Hydrocarbons in Iron-Bearing Mineral Environments during Subduction
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- Serovaiskii, Aleksandr (författare)
- Gubkin Russian State Univ Oil & Gas, Natl Res Univ, Dept Phys, Leniskiy Ave 65-1, Moscow 119991, Russia.
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- Mukhina, Elena (författare)
- Skolkovo Inst Sci & Technol, Bolshoy Blvd 30,Bld 1, Moscow 121205, Russia.
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- Dubrovinsky, Leonid (författare)
- Univ Bayreuth, Bayer Geoinst, Univ Str 30, D-95440 Bayreuth, Germany.
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- Chernoutsan, Aleksey (författare)
- Gubkin Russian State Univ Oil & Gas, Natl Res Univ, Dept Phys, Leniskiy Ave 65-1, Moscow 119991, Russia.
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- Kudriavtcev, Danil (författare)
- KTH,Energiteknik
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- McCammon, Catherine (författare)
- Univ Bayreuth, Bayer Geoinst, Univ Str 30, D-95440 Bayreuth, Germany.
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- Aprilis, Georgios (författare)
- Univ Bayreuth, Lab Crystallog, Mat Phys & Technol Extreme Condit, D-95440 Bayreuth, Germany.
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- Kupenko, Ilya (författare)
- Univ Munster, Inst Mineral Westfalische Wilhelms, Corrensstr 24, D-48149 Munster, Germany.
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- Chumakov, Aleksandr (författare)
- ESRF European Synchrotron, CS40220, F-38043 Grenoble 9, France.
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- Hanfland, Michael (författare)
- ESRF European Synchrotron, CS40220, F-38043 Grenoble 9, France.
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- Kutcherov, Vladimir G., 1955- (författare)
- KTH,Energiteknik,Industriell ekonomi och organisation (Inst.),Department of Physics, Gubkin Russian State University of Oil and Gas (National Research University), Leniskiy avenue 65/1, Moscow, 119991, Russian Federation
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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. (creator_code:org_t)
- 2019-10-23
- 2019
- Engelska.
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Ingår i: Minerals. - : MDPI. - 2075-163X. ; 9:11
- Relaterad länk:
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https://doi.org/10.3...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geokemi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geochemistry (hsv//eng)
Nyckelord
- iron carbide
- iron hydride
- subduction
- hydrocarbons
- petroleum
- mantle
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- ref (ämneskategori)
- art (ämneskategori)
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Serovaiskii, Ale ...
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Mukhina, Elena
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Dubrovinsky, Leo ...
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Chernoutsan, Ale ...
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Kudriavtcev, Dan ...
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McCammon, Cather ...
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visa fler...
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Aprilis, Georgio ...
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Kupenko, Ilya
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Chumakov, Aleksa ...
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Hanfland, Michae ...
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Kutcherov, Vladi ...
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