Lunar mare — The lunar maria /ˈm … Wikipedia
KREEP — ist ein magmatisches Gestein, das auf dem Mond vorkommt. Insbesondere wurde es in Form von Impaktbrekzien in Kratern oder neben Basalten (vgl. auch Lunabas und Lunarit) gefunden. Hervorzuheben ist seine chemische Zusammensetzung aus sogenannten… … Deutsch Wikipedia
Geology of the Moon — The geology of the Moon (sometimes called selenology, although the latter term can refer more generally to lunar science ) is quite different from that of the Earth. The Moon lacks a significant atmosphere and any bodies of water, which… … Wikipedia
KREEP — KREEP, an acronym built from the letters K (the atomic symbol for the element potassium), REE (Rare Earth Elements) and P (for phosphorus), is a geochemical component of some lunar impact melt breccia and basalt rocks. Its most significant… … Wikipedia
Crust (geology) — Geologic provinces of the world (USGS) Shield … Wikipedia
Late Heavy Bombardment — The Late Heavy Bombardment (commonly referred to as the lunar cataclysm, or LHB) is a period of time approximately 3,800 to 4,100 million years ago (mya) during which a large number of impact craters are believed to have formed on the Moon, and… … Wikipedia
Geologic time scale — This clock representation shows some of the major units of geological time and definitive events of Earth history. The Hadean eon represents the time before fossil record of life on Earth; its upper boundary is now regarded as 4.0 Ga.[1] Other… … Wikipedia
Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… … Universalium
Age of the Earth — This article is about scientific estimates of the age of the Earth. For religious and other non scientific estimates, see Dating Creation. Earth as seen from Apollo 17 The age of the Earth is 4.54 billion years (4.54 × 109 years ± 1%) … Wikipedia
geology — /jee ol euh jee/, n., pl. geologies. 1. the science that deals with the dynamics and physical history of the earth, the rocks of which it is composed, and the physical, chemical, and biological changes that the earth has undergone or is… … Universalium
