deposits of material left by wind, water, or moving ice
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SEDIMENTARY ROCK
Rock created when different grain size particles of Earth become compacted, cemented or re crystallized (lithification).
TYPES OF SEDIMENTARY ROCK
I Clastic – coarse grained to fine grained
Conglomerate Breccia Sandstone Siltstone Shale
SEDIMENTARY - BRECCIAS
Large grained jagged edged pebbles or gravel
compacted and cemented together.
SEDIMENTARY - ORGANIC
Coal – made from the remains of decayed plant and animal material.
Peat- plant matter Lignite- brown coal/still some moisture
present Bituminous- soft black coal/almost all
moisture removed Anthracite – hardened black coal/
almost pure carbon/ no moisture
SEDIMENTARY ORGANIC
Limestone – begins as shells or calcium bearing animals or plants.
These die and float to the bottom of the ocean or lake they inhabit.
Eventually enough accumulates to create enough pressure to create limestone.