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Olivine basalt collected from the rim of Hadley Rille by the crew of Apollo 15. Moon rock or lunar rock is rock originating from Earth's Moon.This includes lunar material collected during the course of human exploration of the Moon, and rock that has been ejected naturally from the Moon's surface and landed on Earth as meteorites.
Geological studies of the Moon are based on a combination of Earth-based telescope observations, measurements from orbiting spacecraft, lunar samples, and geophysical data. . Six locations were sampled directly during the crewed Apollo program landings from 1969 to 1972, which returned 382 kilograms (842 lb) of lunar rock and lunar soil to Earth [8] In addition, three robotic Soviet Luna ...
Some lunar basalts contain high abundances of titanium (present in the mineral ilmenite), suggesting that the mantle is highly heterogeneous in composition. Moonquakes have been found to occur deep within the mantle of the Moon about 1,000 km below the surface. These occur with monthly periodicities and are related to tidal stresses caused by ...
Lunar basalt samples previously were obtained from the moon's near side, which perpetually faces Earth, during U.S. Apollo, Soviet Luna and Chinese Chang'e-5 missions. ... The new study also found ...
The age of the basalt rock from the far side is surprisingly young compared with the previously studied lunar near-side samples, which were all more than 3 billion years old, said Clive Neal, a ...
The ages of the mare basalts have been determined both by direct radiometric dating and by the technique of crater counting.The radiometric ages range from about 3.16 to 4.2 billion years old (Ga), [4] whereas the youngest ages determined from crater counting are about 1.2 Ga. [5] Updated measurements of samples collected by the Chang’e-5 mission show that some lunar basalts could be as ...
Thorium concentrations on the Moon, as mapped by Lunar Prospector.Thorium correlates with the location of KREEP. KREEP, an acronym built from the letters K (the atomic symbol for potassium), REE (rare-earth elements) and P (for phosphorus), is a geochemical component of some lunar impact breccia and basaltic rocks.
Thin section of Apollo 12 Oceanus Procellarum sample 12005 in cross polarized light showing Lunar minerals. The composition of Lunar regolith reflects the composition of the parent rocks it overlies. Over time, material is mixed both vertically and horizontally (a process known as "gardening") by impact processes. While mare and highland ...