Lunar Terrane

The Moon is composed of two major geologic provinces that have a unique origin, composition, and thermal evolution. The Procellarum KREEP Terrane is a large province on the near side of the Moon that has high abundances of KREEP. The Felspathic Highlands Terrane, in contrast is composed predominantly of ancient anorthositic materials. A third terrane, the South Pole‚ÄďAitken Terrane, may simply represent deep crustal materials of the feldspathic highlands terrane.

Famous quotes containing the word lunar:

    A bird half wakened in the lunar noon
    Sang halfway through its little inborn tune.
    Robert Frost (1874–1963)