bedrock

definition

Bedrock is the solid rock that underlies looser surface material.

erosion

Bedrock can be eroded through the action of glacial plucking and abrasion, and the resulting clasts of various sizes will be incorporated to the glacier’s bed.

Laurentia

In the United States, the [Laurentia] craton bedrock is covered with sedimentary rocks on the broad interior platform in the Midwest and Great Plains regions and is exposed only in northern Minnesota, Wisconsin, the New York Adirondacks, and the Upper Peninsula of Michigan.

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Gorda Plate

regolith

The various kinds of broken and weathered rock material, such as soil and subsoil, that may overlie the bedrock are known as regolith.

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Bedrock (Wikipedia) In geology, bedrock is solid rock that lies under loose material (regolith) within the crust of Earth or another terrestrial planet.

tagged

An exposed portion of bedrock is often called an outcrop.

tags

rock

Wikidata

https://www.wikidata.org/wiki/Q570309

Wikimedia

https://commons.wikimedia.org/wiki/Category:Bedrock

Wikipedia

Bedrock (Wikipedia) In geology, bedrock is solid rock that lies under loose material (regolith) within the crust of Earth or another terrestrial planet.