Luna 20: mineralogy and petrology of fragments less than 125 μm size |
| |
Authors: | Henry O.A. Meyer |
| |
Affiliation: | Department of Geosciences, Purdue University, West Lafayette, Indiana 47907 USA |
| |
Abstract: | Two milligrams of less than 125 μm size particles from the Luna 20 soil sample (22001,17) have been examined. The results of the mineral identification and analysis verify earlier assumptions that the nature of the lunar highlands is predominantly anorthositic in composition. The presence of highly magnesian clinopyroxene, orthopyroxene and olivine suggests crystallization of Highland rocks in an ultrabasic environment. No fragments were observed that could be unequivocally assigned to mare basalt types. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|