Transformation of pyroxene to akimotoite (MgSiO3-ilmenite) in NWA 5011 L6 chondrite

Details Transformation of pyroxene to akimotoite (MgSiO3-ilmenite) in NWA 5011 L6 chondrite Transformation of pyroxene to akimotoite (MgSiO3-ilmenite) in NWA 5011 L6 chondrite

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf..792n&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.792

Physics

Scientific paper

The NWA 5011 L6 type chondrite is a heavily shocked meteorite. It contains up to 6mm wide shock melt veins (SMV). The akimotoite was firstly discovered in Tenham chondrite [1]. These shock veins attribute high pressure and high temperature to phase transformation its inside and near by its boundary. We found MgSiO3 ilmenite which clearly distinguish from the pyroxene. This high pressure phase is connecting with ringwoodite and maskelynite environment in the chondritic portion very close to boundary of the shock vein.

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