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Chatper 6 Vocab

TermDefinition
Sediment small pieces of rock that are moved and deposited by water, wind, gravity, and glaciers.
Lithifaction the physical and chemical processes that transform sediments into sedimentary rocks.
Cementation process of sedimentary rock formation that occurrs when dissolved minerals precipitate out of groundwater and either a new mineral grows between the sediment grains or the same mineral grows between and over the grains
Bedding horizontal layering in sedimentary rock that can range from a few millimeters to several meters thick.
Graded Bedding type of bedding in which particles sized become progessively heavier and coarser toward the bottm layers.
Cross-bedding depositional feature of sedimentary rock that form as inclined layers of sediment are carried forward across a horizontal surface.
Clastic sedimentary rock most common type of sedimentary rock, formed from the abundant deposits of loose sediments that accumulate on Earth's surface; classified according to he size of their particles
Clastic rock and mineral fragments produced by weathering and erosion and classified according to particle size and shape
Porosity percentage of open spaces between grains in a material
Evaporite the layers of chemical sedimentary rocks that from when concentrations of dissolved minerals in a body of water reach saturation due to the evaporation of water; cyrstal grains precipitate out of solution and settle to the bottm
Foliated metamorphic rock, such as schist or gneiss, whose minerals are squeezed under high pressure and arranged in wavy layers and bands
Nonfoliated metamorphic rocks like quartzite and marble, composed mainly of minerals that form with blocky crystal shapes
Regional metamorphism process that affects larger areas of Earth's crust, producing belts classified as low, medium, or high grade, depending on pressure on the rocks, temperature, and depth below the surface
Contact metamorphism local effect that occurs when molten rock meets solid rock
Hydrothermal metamorphism occurs when very hot water reacts with rock, altering it mineralology and chemistry
Rock cycle continuous, dynamtic set of processes by which rocks are changed into other types of rock.
Created by: spjaco
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