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Sedimentary

sedimentary rocks classified by type, sediment and particle size

QuestionAnswer
conglomerate detrital, gravel round particles, course over 2 mm
Braccia detrital gravel angular particles course over 2mm
sandstone detrital sand medium 1/16 to 2mm
siltstone detrital mud fine 1/16 to 1/256mm
shale detrital mud very fine less than 1/256mm
crystaline limestone chemical calcite fine to course crystaline
travetine chemical calcite fine to course crystaline
coquina limestone biochemical, calcine visible shells and shell fragments loosely cemented
fossiliferous limestone biochemical limestone, calcite various sizes shells and shell fragments cemented with calcite cement
chalk biochemical limestone, calcite microscopic shells and clay
chert chemical light colored quartz very fine crystalline
flint chemical dark colored quartz very fine crystalline
Rock gypsum chemical gypsum, fine to course crystalline
rock salt chemical halite tine to coarse crystalline
bituminous coal chemical, altered plant fragments fine grained organic matter
weathering the process were rocks are broken down either through chemical or physical means
erosion the incorporation and transportation of rock material by a mobile agent, wind, water, ice
transportation movement of eroded particles
deposition as the force carrying the particles slow they are deposited in the order of the heaviest first.
cementation the process where ground water leaves minerals behind in pores making the rocks solid.
lithification the process of turning sediment into rock where the water is pushed out of the sediment with pressure. also the process where deep in the earth the rocks undergo high pressure and heat and are turned into metamorphic rock
Created by: 35904657
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