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| movement of materials from one reservoir to another |
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| amount of matter in an object |
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| force with which one object is attracted to another |
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| king henry died monday drinking chocolate milk |
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| kilo hecto deca meter decimeter centi millimeter |
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| immediately help identify mineral |
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elastic-return to shape.
flexible-new shape |
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quartz
feldspars
amphiboles
pyroxenes
silicon and oxygen
ferromagnesian-iron and magnesium
nonferromagnesian |
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| like a three dimensional jigsaw puzzle |
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| most silica, light colored, low specfic gravity |
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stretching of lithosphere at divergent plate boundary (ocean ridge)
requires no additional input of heat |
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| consist primarily of quartz |
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| mostly of calcite or dolomite |
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| consist of salts that precipitate when saltwater evaporates |
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| may be more than 90% carbon |
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| discrete grains are held together by cement |
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| depositional environment-glacial |
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| unosrted sediment containing angular clasts,large clasts suspended in finer matrix |
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| depositional environment-fluvial (river) |
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| channels of sandstone or conglomerate in some places surrounded by layer of mudstone, hematite containging cement |
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| depositional environment-beach |
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| well sorted, cross bedded sandstone |
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| depositional environment-shallow marine |
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| depositional environment-deep marine |
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| shale, chert, micrite, and chalk |
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| depositional environment-swamp |
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| depositional environment-alluvial fan |
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| depostional environment-desert dune |
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| well sorted sandstone with large cross beds |
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| heat, pressure, and hydrothermal fluids |
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| results from burial of rocks within the earth and the pressure is equal in all directions |
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| when the chemical composition of a metamorphic rock changes significantly due to reaction with hydrothermal fluids we say that the rock has undergone... |
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thermal metamorphism
rocks are subjected to heat and there is no chnage in pressure and no differential stress, igneous intrusion |
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| increases in temperature and differntial stress (squeezing and shearing) |
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| buried deeply by overlying sediment |
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| rock undergoes differntial stress in response to shear along a fault zone but does not undergo a change in temperature or lithostatic pressure. hydrothermal fluids may be present in all metamorphic settings. |
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| metamorphic rocks with random grain orientations |
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| _______ metamorphism occurs in a collisional mountain belt. |
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| length of stram channel (meanders and all) / straight line distance between the same points |
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| surface materials are equally resistant to erosion. |
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| ridges of resistant rock alternate with valleys underlain by weaker material |
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| indicate zones of weakness (faults, fractures) |
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| streams flow either outward (centrifugal) from a high point, like a volcano or inward (centripetal) toward the cetner of a large basin |
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| concentric rings of alternating resistant and weak rocks-typically found in structures called domes and basins |
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| groundwater-eroded landscape is called ___ ________. |
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| which is stretching or pulling apart (outward pointing arrows) |
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| squeezing or squashing in a specific direction (inward pointing arrows) |
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| boundary surface of an intrusive igneous body |
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| boundary between successive beds, sedimentary formations, or volcanic extrusions in a continuous stratigraphic sequence |
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| unconformable contact (unconformity) |
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| period of erosion has interupted disposition |
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| two units are juxtaposed across a fault |
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| _ waves are faster than _ waves. |
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