Labels:door | lepton | observatory | sky | tree | vase | windowpane OCR: STRUC TU Crust: 50-100 km thick Upper Mantle: 650 km thick Lower Mantle 500 km thick Core: radius of 500 km Composition The Moon, whose diameter is 3. .476 km has crust, mantle, and possibly a metallic core. The crust extends depth of about 50 km on the front side of the Moon and 100 km on the far side. The crust has two and sometimes three sublayers: the maria where applicable (up to 5 km deep) layer of rock fragmented by repeated impacts (up to 25 km deep) and layer of unfractured rock (below 25 km .Below the crust lies the mantle The upper mantle solid, while the lower mantle is partially molten. Moonquakes occur near the base of the upper mantle The mantle is composed of minerals such as pyroxene and olivine as well as iron and magnesium. It is possible that the molten lower mantle ext ...
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