geochemistry
91Anorthosite — (pronEng|æˈnɔrθəsaɪt/, /ə ) is a phaneritic, intrusive igneous rock characterized by a predominance of plagioclase feldspar (90–100%), and a minimal mafic component (0–10%). Pyroxene, ilmenite, magnetite, and olivine are the mafic minerals most… …
92Tufa — Not to be confused with tuff, a porous volcanic rock. This article is about the geological formation. For the historic Chinese name, see Southern Liang. Tufa columns at Mono Lake, California Tufa is a variety of limestone, formed by the… …
93Flood geology — Part of a series on Creationism History of creationism Neo creationism …
94Lunar mare — The lunar maria  /ˈm …
95Oceanic crust — Age of oceanic crust. The red is most recent, and blue is the oldest. Oceanic crust is the part of Earth s lithosphere that surfaces in the ocean basins. Oceanic crust is primarily composed of mafic rocks, or sima, which is rich in iron and… …
96Grenville Turner — (born 1 November 1936, Todmorden) is a research professor at the University of Manchester. He is one of the pioneers of cosmochemistry. Education * Todmorden Grammar School * St. John s College, Cambridge (MA) * Balliol College, OxfordIn 1962, he …
97Cesare Emiliani — in the early 1950s while conducting pioneering research at the University of Chicago. (Photo: Archives of the Rosenstiel School of Marine and Atmospheric Science, University of Miami) Cesare Emiliani (8 December 1922 – 20 July 1995) was an… …
98Coloradoite — from the La Plata District of Colorado General Category Telluride mineral …
99Irving Friedman — (January 12, 1920 June 28, 2005) was a U.S. Geological Survey (USGS) scientist and a pioneer in geochemistry. Born in New York City, New York, he obtained a B.S. degree in chemistry from Montana State University, a M.S. degree in chemistry from… …
100Komatiite — Komatiites are ultramafic mantle derived volcanic rocks. They have low SiO2, low K2O, low Al2O3, and high to extremely high MgO. They were named for their type locality along the Komati River in South Africa. True komatiites are very rare and… …
