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Chapter 6

QuestionAnswer
Compaction is the process in which sediment is squeezed and in which the size of the pore space between sediment grains is reduced by the weight and pressure of overlying layers.
Cementation is the process in which sediments are glued together by minerals that are deposited by water.
Chemical sedimentary rock is the process in which sediments are glued together by minerals that are deposited by water.
Organic sedimentary rock Organic sedimentary rock is rock that forms from the remains of living things. Coal and some limestones are examples of organic sedimentary rocks.
Clastic sedimentary rock is made of rock fragments that are carried away from their source by water, wind, or ice and left as deposits.
Sorting The tendency for currents of air or water to separate sediments according to size is called sorting.
Angularity As sediment is transported from its source to where it is deposited, the particles collide with each other and with other objects in their path.
Stratification Layering of sedimentary rock
Cross-bedding Some sedimentary rocks are characterized by slanting layers called cross-beds that form within beds. Cross-beds, which generally form in sand dunes or river beds
Ripple marks Ripple marks are caused by the action of wind or water on sand
Mud cracks form when muddy deposits dry and shrink.
Concretions form when minerals precipitate from fluids and build up around a nucleus.
Created by: kaitlynquijas19