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12 Cards in this Set
- Front
- Back
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bedding plane
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a nearly flat surface seperating two beds of sedimentary rock, marks the end of one deposit and the beginning of another having different characteristics
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beds (strata)
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parallel layers of sedimentary rock
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biochemical
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a type of chemical sediment that forms when material dissolved in water is precipitated by water-dwelling organisms. Shells are common examples
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cementation
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one way in which sedimentary rocks are lithified. As material precipitates from water from that percolates through the sediment, open spaces are filled and particles are joined into a solid mass
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chemical sedimentary rock
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sedimentary rock consisting of material that was precipitated from water by either inorganic or organic means
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clastic texture
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sedimentary rock texture consisting of broken fragments of preexisting rock
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compaction
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a type of lithification in which the weight of overlying material compresses more deeply buried sediment. It is most important in the fine-grained sedimentary rocks such as shale
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cross-bedding
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structure in which relatively thin layers are inclined at an angle to the main bedding. Formed by currents of water
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crystalline texture
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an orderly arrangement of atoms
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derital sedimentary rock
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rocks that form from the accumulation of materials that originate and are transported as solid particles derived from both mechanical and chemical weathering
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diagnesis
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a collective term for all the chemical, physical, and biological changes that take place after sediments are deposited and during and after lithification
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environment of deposition
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a geographic setting where sediment accumulates. Each site is characterized by a particular combination of geologic processes and environmental conditions
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