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Metamorphic and Sedimentary Rocks

Terms

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sedimentary rocks are classified by:
compostion and the way they form
3 major rock types
Igneous, Metamorphic, and Sedimentary
types of sedimentary rock
detrital, chemical, and organic
examples of organic rocks
fossil rich limestone, coquina, and coal
Igneous Rocks
rocks formed by the cooling of molten rock (either magma or lava)
organic
rocks formed from remains of once living things
waste coal
a poor quality coal that is a by-product of coal mining
Sedimentary Rock
form when 1.)sediments become pressed or cemented together 2.)sediments precipitate out of a solution
compaction
pressure upon layers of built up small sediments on lower layers causing lower layers to stick together and form solid rock
hydrate
mix with water
Metamorphic Rock
rocks that have changed due to temperature and pressure
detrital
sedimentary rocks made from the broken fragments of other rocks that are compacted and cemented together
Non-Foliated Rocks
texture of rocks where the mineral grains grow, change, and rearrange but do not form bands
most common rock below earth's surface
Igneous Rock
chemical
form when minerals are precipitated from a solution or left behind when a solution evaporates
Rocks
a mixture of minerals, mineraloids, glass, and organic matter
congeneration
when both electrical and thermal energy produced by burning waste-coal used by the same plant (to run the plant)
examples of detrital rocks
larger: conglomerate and breccia smaller: sandstone and shale
Foliated Rocks
texture of rocks resulting from mineral grains flattening and lining up in parallel bands
cementation
when the solution of water and dissolved minerals move through open spaces between sediments and cement the sediments together
75% of rocks at earth's surface
Sedimentary Rock
sediments
loose material such as rock fragments, mineral grains, and bits of plant and animal remains moved by wind, water, ice, gravity, or dissolve on water
examples of chemical rocks
limestone and rock salt
erosion
the movement of weathered material
weathering
process that breaks rocks into smaller pieces

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