R5: Extraterrestrial materials

[R5-05] Multi-probe microscopy analysis of NWA 10153 and NWA 6148

*Kakeru Kukihara¹, Masaaki Miyahara¹, Akira Yamaguchi², Yoshio Takahashi³, Yasuo Takeichi⁴, Naotaka Tomioka⁵, Eiji Ohtani⁶ (1. Hiroshima Uni. Sci., 2. NIPR, 3. Tokyo Uni. Sci., 4. KEK, 5. JAMSTEC, 6. Tohoku Uni. Sci.)

Keywords:Mars, NWA 10153, NWA 6148, Aqueous alteration, Nakhlites complex

We conducted petrological and mineralogical studies of the nakhlites NWA 6148 and NWA 10153 to clarify an aqueous alteration and stratigraphy in the nakhlites complex. As a result, NWA 6148 and NWA 10153 were originated from lava flow that rapidly cooled and solidified near surface, and two different aqueous alteration events likely occurred in NWA 10153.