CONSORTIUM STUDY OF THE ASUKA 12209 ANGRITE

Asuka (A) 12209 is a new angrite recovered by the joint Japanese and Belgian Antarctic meteorite research expedition (JARE54 and BELARE-SAMBA) during the 2012-2013 season [1,2]. It was collected on the blue ice at Nansen Icefield located south of Sør Rondane Mountains on Jan. 6, 2013. It is a 43.65 g complete stone partly covered with fusion crust (Fig. 1). Large olivine crystals (~5 mm) with pale green color are exposed on the dark surface and mm-sized vesicles are present. We have organized a consortium study of this meteorite to first check its pairing with A 881371 angrite which was found in the same ice field [3] and subsequently to analyze it in more detail (mineralogy, bulk chemistry, trace element of olivine megacrysts, isotopes including chronology) in order to fully utilize its larger mass compared to A 881371 (original main mass: 11.3 g). In this abstract we report a preliminary result (petrology and mineralogy) of this consortium study.