petrologists

petrologists
pɪ'trɑlədʒɪst /-'trɒl- n. one who studies rocks

English contemporary dictionary. 2014.

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  • igneous rock — Any of various crystalline or glassy, noncrystalline rocks formed by the cooling and solidification of molten earth material (magma). Igneous rocks comprise one of the three principal classes of rocks, the others being metamorphic and sedimentary …   Universalium

  • metamorphic rock — Any of a class of rocks that result from the alteration of preexisting rocks in response to changing geological conditions, including variations in temperature, pressure, and mechanical stress. The preexisting rocks may be igneous, sedimentary,… …   Universalium

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  • sedimentary rock — Rock formed at or near the Earth s surface by the accumulation and lithification of fragments of preexisting rocks or by precipitation from solution at normal surface temperatures. Sedimentary rocks can be formed only where sediments are… …   Universalium

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  • Thomas Gold — Infobox Scientist name = Thomas Gold box width = birth date = May 22, 1920 birth place = Vienna, Austria death date = June 22, 2004 death place = residence = citizenship = nationality = Austrian ethnicity = field = astrophysics work institutions …   Wikipedia

  • Charles Barrois — (21 April 1851 – 5 November 1939) was a French geologist and palaeontologist. Barrois was born at Lille and educated at the college in that town, where he studied geology under Professor Jules Gosselet. His first comprehensive work was Recherches …   Wikipedia

  • Granulite — Granulites are fine to medium–grained metamorphic rocks that have experienced high temperatures of metamorphism, composed mainly of feldspars sometimes associated with quartz and anhydrous ferromagnesian minerals, with granoblastic texture and… …   Wikipedia

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