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Igneous Rock Sedimentary Rock Metamorphic Rock Terms Grab Bag 100 200 300 400 500
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Rock that forms when magma cools and hardens Answer
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Igneous Rock Home
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Igneous rock that is rich in feldspars and silica and generally light in color Answer
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Felsic Rock Home
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Zones of weakness in an ingneous rock structure Answer
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Joints Home
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Batholiths, laccoliths, and sills are all examples of this______ Answer
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Intrusive igneous intrusions Home
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Igneous rock that is rich in Fe and Mg and is generally dark in color Answer
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Mafic Home
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Sedimentary rock that is made up of rock fragments that become compacted or cemented together Answer
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Home Clastic Rock
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Layers and bed of sedimentary rock are examples of ________ Answer
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Stratification Home
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This structure forms when finer sediments settle on the bottom and large grains settle on the top Answer
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Reverse grading Home
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Lumps that have compositions different from the main body of rock Answer
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Concretions Home
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Forms when minerals precipitate from a solution or settle from a suspension Answer
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Home. Chemical sedimentary Rock
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Rocks that forms when existing rock is altered by forces of heat, pressure or chemical processes Answer
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Metamorphic Home
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Changes in temperature and pressure over a large area Answer
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Regional metamorphism Home
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This texture results when extreme pressure causes minerals in Metamorphic rock to realign, or when minerals separate our into dark and light bands Answer
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Foliated Home
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An example of a nonfoliated rock used as a building or sculpting material Answer
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Marble Home
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Rock texture in which minerals are arranged in planes or bands is called ________ Answer
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Foliation Home
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Answer Rocks from magma that cools deep inside Earth’s crust
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Intrusive igneous Home
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“lake of rock” when magma pushes the overlying rock layers into a dome Answer
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Laccolith Home
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Formations that spread over 100 km squared Answer
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Batholiths Home
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Process in which sediments are glued together by minerals deposited in water Answer
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Home Cementation
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Answer Rocks change from one type to another as a result of geologic forces and processes that are part of the ______
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The Rock Cycle Home
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A type of rock with vesicular texture Answer
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Pumice Home
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Texture with a mixture of large and small crystals Answer
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Porphyritic Home
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Forms from the remains of plants and animals Answer
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Organic Sedimentary Home
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Granite has large, well- developed crystals giving it what kind of texture? Answer
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Coarse-grained texture Home
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When magma forms by partial melting, which of the following mineral pairs melt first? Answer
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Quartz/ feldspar Home
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