GEO 110 Lecture Notes - Lecture 13: Ultramafic Rock, Metamorphic Rock, Silicate Minerals
5 Dec 2016
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Document Summary
Most abundant elements in the earth"s crust- oxygen, silicon, aluminum, iron, calcium, sodium, potassium, magnesium. Intrusive rocks formed from magma that solidifies below the earth"s surface. Extrusive rocks formed from magma (above ground i think) Some forms of sedimentary rocks are sandstone, shale, chalk, and conglomerate. Coal is an organic sedimentary rock (fossil fuels) fossil fuels: are hydrocarbon compounds produced from the remains of organic compounds encased in rock. Chemically precipitated: formed by chemical precipitation from seawater or salty inland lakes. Metamorphic: rock resulting from pre-existing igneous or sedimentary rock that has undergone a change by pressure and/or temp changes. Metamorphic rock: rock altered in physical or chemical composition by heat, pressure, or other processes taking place at a substantial depth below the surface. Topography: is the configuration of natural and manmade features of landscapes. Landform: is a specific geomorphic feature on the surface of the earth such as a valley.
