Explanation – The concept of a Lunar Magma Ocean (LMO) is central to understanding the Moon’s early geological history. This theory suggests that the Moon was once covered by a vast ocean of molten rock, formed as a consequence of a massive impact between the early Earth and a Mars-sized body. This collision resulted in the Moon’s formation, with the intense heat from the impact causing the surface to remain molten for an extended period. As this magma ocean cooled, different minerals crystallized at various depths. Ferroan anorthosite, a type of rock rich in calcium and aluminium, is believed to have formed during this cooling process. These rocks floated to the surface due to their buoyancy, creating the Moon’s initial crust.

Source: The Hindu