859–869, 2013 The pressures and temperatures of meteorite impact: Evidence from micro-Raman mapping of mineral...mineral phases in the strongly shocked Taiban ordinary chondrite Tayro E. Acosta-Maeda,1,2,* Edward R...Hawaii, Honolulu, Hawaii 96822, U.S.A. 2 Abstract Taiban is a heavily shocked L6 chondrite showing opaque...mineral phases such as olivine, wadsleyite, ringwoodite, high-Ca clinopyroxene, majorite-pyrope, jadeite...the ringwoodite, which suggests chemical fractionation during a solid-state olivine-ringwoodite transformation |