bn:00009512n
Noun Concept
Categories: Petrology, Rocks, Earth's crust
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bedrock  subsurface  Bed of rock  Bed rock
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Solid unweathered rock lying beneath surface deposits of soil WordNet 3.0
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In geology, bedrock is solid rock that lies under loose material within the crust of Earth or another terrestrial planet. Wikipedia
Type of rock underlying the Earth's surface Wikipedia Disambiguation
The solid rock that exists at some depth below the ground surface. Bedrock is rock "in place", as opposed to material that has been transported from another location by weathering and erosion. Wiktionary
WordNet 3.0 & Open English WordNet
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Wikipedia
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