Megaregolith thickness, heat flow, and the bulk composition of the Moon

  title={Megaregolith thickness, heat flow, and the bulk composition of the Moon},
  author={Kaare Lund Rasmussen and Paul H. Warren},
The Moon's bulk composition is a major constraint on its origin and evolution. Bulk density alone shows that the Moon is depleted in metallic FeNi relative to the Earth or to chondrites with earthlike MgO/FeO ratios (such as H-group chondrites). Depletions of minor-trace volatile elements are also obvious from geochemical data. The simplest assumption would be that the Moon is not much different in terms of nonsiderophile, nonvolatile elements from the silicate portions of the Earth or H… 

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