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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.
KREEP, a suite of lunar lavas, relatively enriched in certain elements, that were identified in the analysis of rock samples that Apollo astronauts brought back from the Moon. The elements include potassium (chemical symbol K), rare-earth elements, and phosphorus (P), from which the acronym KREEP.
- James D. Burke
KREEP is an acronym of K (potassium), R (rare), E (Earth), E (element), and P (phosphorus), a chemical formula for a moon rock that contains these elements. It was discovered by the Apollo astronauts and is a term for the Apollo 11 Moon landing site. Learn more about the origin and meaning of other lunar terms and definitions.
Apr 27, 2011 · KREEP is an acronym for potassium, rare earth elements, and phosphorus, the last to solidify in the lunar crust. It occurs where the Moon formed from a molten magma ocean and cooled. It is important for geology and geochronology of the Moon, as it contains thorium, a radioactive element that reveals its age.
KREEP is a lunar material having very high concentrations of incompatible elements; its name is an acronym for the incompatibles K, rare-earth elements (REE), and P. Although a few pristine (endoge...
- Paul H. Warren, John T. Wasson
- 1979
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.
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Nov 11, 2004 · Metrics. Primordial solidification of the Moon (or its uppermost layer) resulted in the formation of a variety of rock types that subsequently melted and mixed to produce the compositional...
