Estimates of Oxygen Fugacity in the Basaltic Shergottites from Electron Microprobe Oxygen Analysis
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Crystallization Experiments of Dar Al Gani Martian Meteoites: a Preliminary
Introduction: Recently, a lot of basaltic shergottites have been found from the desert areas in northern Africa and Middle East Asia. Most of them contain large olivine grains that are not present in the previously known basaltic shergottites (except for EETA79001). These olivine grains are mostly Mg-rich, but they show different mineralogical features in each meteorite. Dar al Gani 476 and its...
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Introduction: Lherzolitic shergottites show similar mineralogy and ages [e.g., 1,2], and are widely believed to have originated from the geochemically-intermediate reservoir having distinct trace element and isotopic compositions [e.g., 3,4]. RBT04262 and NWA4468 are recently discovered new shergottites that contain py-roxene oikocrysts enclosing olivine and chromite, and petrographically simil...
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تاریخ انتشار 1998