Lunar ferroan anorthosites and mare basalt sources: The mixed connection
Tóm tắt
Global overturn of a hot, gravitationally unstable lunar mantle immediately following the solidification of a magma ocean [and essentially complete by 4.4 Ga] explains several characteristics of lunar petrology. Lunar mare basalt sources are inferred to be depleted in europium and alumina. These depletions are consensually attributed to complementary plagioclase floating from a magma ocean. However, the connection cannot be so simple and direct: in contrast to the mare basalt source parent magma, the ferroan anorthosite parent magma was
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