Synthesis of heavy hydrocarbons at the core-mantle boundary

The synthesis of complex organic molecules with C-C bonds is possible under conditions of reduced activity of oxygen. We have found performing ab initio molecular dynamics simulations of the C-O-H-Fe system that such conditions exist at the core-mantle boundary (CMB). H(2)O and CO(2) delivered to th...

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Detalles Bibliográficos
Autores principales: Belonoshko, Anatoly B., Lukinov, Timofiy, Rosengren, Anders, Bryk, Taras, Litasov, Konstantin D.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4682099/
https://www.ncbi.nlm.nih.gov/pubmed/26675747
http://dx.doi.org/10.1038/srep18382
Descripción
Sumario:The synthesis of complex organic molecules with C-C bonds is possible under conditions of reduced activity of oxygen. We have found performing ab initio molecular dynamics simulations of the C-O-H-Fe system that such conditions exist at the core-mantle boundary (CMB). H(2)O and CO(2) delivered to the CMB by subducting slabs provide a source for hydrogen and carbon. The mixture of H(2)O and CO(2) subjected to high pressure (130 GPa) and temperature (4000 to 4500 K) does not lead to synthesis of complex hydrocarbons. However, when Fe is added to the system, C-C bonds emerge. It means that oil might be a more abundant mineral than previously thought.

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