Computer simulation of anomalous composition of Mg-Fe plagioclase in meteorite

• Main Author: Yasunori Miura
• Format: Report
• Language: English
• Published: Department of Mineralogical Science and Geology, Faculty of Science, Yamaguchi University 1984
• Subjects: The ''Y''; Memoirs of National Institute of Polar Research; Polar Research
• Online Access: https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1726; http://id.nii.ac.jp/1291/00001726/; https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1726&item_no=1&attribute_id=18&file_no=1

The chemical anomalies of meteoritic plagioclase which appear also in lunar plagioclase, result in the difference between An=100・Ca/(K+Na+Ca) and An(Al, Si)=(300・(Al/Si)-100)/(1+Al/Si) caused by the various types of substitution which are dealt with computer simulation. Almost all average data are p...