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5 Cards in this Set
- Front
- Back
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True or False Most sedimentary rocks came from loose grains of sediment. |
True |
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Sediment is the collective name for loose, solid particles that originate from: |
weathering and erosion of pre-existing rocks, and chemical precipitation from solution including secretion by organisms in water. |
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are said to be unconsolidated, which means that the grains are separate, or unattached to one another. |
Sediments |
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the grinding away of sharp edges and corners of rock fragments during transportation. It occurs in sand and gravel as rivers, glaciers, or waves cause particles to hit and scrape to one another or against a rock surface. |
Rounding |
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process by which sediment grains are selected and separated according to grain size by the agents of transportation (wind, running water) |
Sorting |
