GEOL week 3
Popular in Planet Earth's geological environment
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This 3 page Class Notes was uploaded by Jessica_Kline on Friday September 11, 2015. The Class Notes belongs to GEOL 101-01 at Ball State University taught by Kirsten N. Nicholson in Fall 2015. Since its upload, it has received 46 views. For similar materials see Planet Earth's geological environment in Science at Ball State University.
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Date Created: 09/11/15
GEOL 101 0909 amp 0911 Minerals 1 Mineral formation occurs in many ways a They can solidify from a cooling melt cooled magma b Once a liquid evaporates the solid left behind is a mineral salt after water evaporates c They can grow at an interface between physical and biological components a mussel shell d Thy can also preticket from gas sulfur from a volcano II The most abundant type of minerals that make up 98 of earth s crust is oxygen 0 and silica Si a Quartz is one of the most common minerals made of only 0 and Si b Feldspars aluminosilicates are silicates that have aluminum Al added to them along with potassium K sodium Na andor calcium Ca 1 Alkalifeldspar is orthoclase it is a pinkish color and has 0 Si Al Na andor K 2 Plagioclase is albite it is a gray color and has 0 Si Al Na andor Ca 3 Mica has thin layers and a tetrahedral structure that can peel apart in layers muscovite is white mica and biotite is dark mica Mica is used for glass and furnace doors because they are transparent and have very high heat resistance 4 Aluminosilicates are used for ceramics and glass and they make clay minerals c Ferromagnesian are silicates that are combined with iron Fe andor magnesium Mg 1 Olivine pyroxine and amphibole hornblende are three of these minerals 2 When these minerals are weathered by rain and other surface factors they form oxides such as rust limonite III The other 2 of the earth s crust is made of almost all carbonates CO3 and several other minerals a Calcite CaCO3 makes limestone marble and any shell b Sulfides S like pyrite FeSz can cause environmental issues c The rest of the crust is made of native elements such as gold Au silver Ag copper Cu and carbon C IV The rock cycle is the processes of recycling rocks over millions of years throughout the Whole world that links processes in the earth put in motion by heat and processes on the surface caused by solar energy a Igneous rocks are formed by the cooling of melts b Metamorphic rocks are altered by heat pressure or chemical uids c Sedimentary rocks are accumulated to form sediment and are packed tightly enough to form a solid rock diagenesislithification 1 Sediments are formed by weathering physical and chemical at or near the earth s surface
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