Rb-Sr and Sm-Nd dating of olivine-phyric shergottite Yamato 980459: Petrogenesis of depleted shergottites

• Main Authors: Shih,Chi-Yu, Nyquist,Laurence E., Wiesmann,Henry, Reese,Young, Misawa,Keiji
• Language: English
• Published: National Institute of Polar Research 2005
• Subjects: Yamato 980459; Rb-Sr; Sm-Nd; age; petrogenesis; nakhlite; depleted shergottite; Yamato; Antarc*; Antarctica
• Online Access: https://nipr.repo.nii.ac.jp/record/6064/files/KJ00002499449.pdf; https://doi.org/10.15094/00006064; https://nipr.repo.nii.ac.jp/records/6064

P(論文) Martian meteorite Yamato (Y) 980459 has undergone terrestrial weathering in Antarctica. The weathering has affected the Sm-Nd isotopic system. Acid-washed pyroxenes, whole rock and quenched glass samples define a Sm-Nd isochron age of 472±47 (±2σ) Ma and a high initial εNd value of +36.9±2.2 (...