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Mineralogy (Perkins et al.)
7: Sedimentary Minerals and Sedimentary Rocks

7: Sedimentary Minerals and Sedimentary Rocks

Last updated

Dec 16, 2022
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- 6.7.3: Ultramafic Igneous Rocks
- 7.1: Weathering

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Key Concepts

Weathering involves the decomposition and breaking apart of rocks at Earth’s surface.
Weathering produces solid clastic material and dissolved chemical material.
Products of weathering may be transported and deposited to produce clastic or chemical sediments.
Sediments of all sorts may be lithified to become rocks.
Clastic material typically comprises quartz and clays; less commonly other minerals.
Minerals produced by chemical precipitation include clays, carbonates, sulfates, halides, zeolites, and chert.
We name clastic sedimentary rocks based primarily on clast size.
We name chemical sedimentary rocks based primarily on composition.

Key Concepts

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