bedrock: Quick Facts

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Photos

A hand points to smooth, striated bedrock at the terminus of Athabaska Glacier, showing glacial grooves and polished rock surface.

Eroded red and white cliffs with jagged formations and sparse vegetation at Miradouro da Lua, the Moon Landscape, in Angola.

Precambrian bedrock of the Canadian Shield

Belcher Islands

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Topics

rock regolith sedimentary rock metamorphic rock igneous rock texture stratification aquifer exfoliation cryoseism bulging

Basalt sample returned by Apollo 15, from near a long sinous lunar valley called Hadley Rille. Measured at 3.3 years old.

(Bed) Rocks and (Flint) Stones

Cross section of Earth showing the core, mantle, and crust

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