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Chemical Sedimentary Rock. Hill Science 6. Chemical Sedimentary Rock. Most common chemical sedimentary rock is limestone. Forms in shallow sea water CaCO 3 precipitates out of sea water and forms limestone. To Create a Precipitate. Chemical Sedimentary Rock.
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Chemical Sedimentary Rock Hill Science 6
Chemical Sedimentary Rock • Most common chemical sedimentary rock is limestone. • Forms in shallow sea water • CaCO3 precipitates out of sea water and forms limestone.
Chemical Sedimentary Rock • Chert – silica flint, agate and jasper • Yellowstone travertine - CaCO3 from hot springs agate chert
Chemical Sedimentary Rock • Geodes – silica filled cavities in limestone left by gas or organic matter that has decayed
Chemical Sedimentary Rock • Evaporites – crystals form when water evaporates gypsum, halite
Sedimentary Rocks • Tell us what the Earth's surface was like in the past. • Only sedimentary rocks contain fossils! • Fossils can tell us about ancient plants, animals, and climates.