Synthesis of heavy hydrocarbons at the core-mantle boundary
2015 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 5, 18382Article in journal (Refereed) PublishedText
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). H2O and CO2 delivered to the CMB by subducting slabs provide a source for hydrogen and carbon. The mixture of H2O and CO2 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.
Place, publisher, year, edition, pages
Nature Publishing Group, 2015. Vol. 5, 18382
Mineral and Mine Engineering
IdentifiersURN: urn:nbn:se:kth:diva-180487DOI: 10.1038/srep18382ISI: 000366571400001PubMedID: 26675747ScopusID: 2-s2.0-84950349897OAI: oai:DiVA.org:kth-180487DiVA: diva2:894521
QC 201601152016-01-152016-01-142016-06-15Bibliographically approved