On lunar asymmetries 1. Tilted convection and crustal asymmetry

It is proposed that lunar crustal asymmetries are the result of convective processes acting early in the Moon's history, during the magma-ocean phase and after synchronous rotation was established. Bouyant anorthositic crystals were transported to the farside by a large-scale circulation, called tilted convection, known to occur spontaneously in chaotic convective systems. The circulation was oriented toward the farside of the Moon by a small …