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6-2 flash cards
Term | Definition |
---|---|
clastic | denoting rocks composed of broken pieces of older rocks. |
coarse grained rocks | Said of a crystalline rock, and of its texture, in which the individual minerals are relatively large |
conglomerate | a number of different things or parts that are put or grouped together to form a whole but remain distinct entities. |
breccia | rock consisting of angular fragments cemented together. |
porosity | the percentage of void space in a rock |
fine grained rocks | Igneous rock in which the framework of the rock consists of crystals that are too small to determine mineralogy with the unaided eye |
evaporites | a water-soluble sedimentary mineral deposit that results from concentration and crystallization by evaporation from an aqueous solution. |
biochemical sedimentary rocks | formed from shells and bodies of underwater organisms. |