Examlex
In the early 1970s, angry protests began to erupt in cities outside the South over:
Basalt
A dark, fine-grained volcanic rock that is formed from the rapid cooling of basaltic lava at the Earth's surface.
Clasts
Fragments of geological detritus, such as minerals and rocks, formed by weathering and erosion.
Unconformity
A geological surface that represents a gap in the geological record, often due to erosion or lack of deposition over a period of time.
Cleavage
In geology, the tendency of minerals to break along flat, parallel surfaces related to the arrangement of atoms within the mineral.
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