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CH3041
THE CONTINENTAL
CRUST
The crust is
composed of
3 rock types:
composed of
3 rock types:
1) Sedimentary
rocks: clays
limestone,
formed from
biotic remains
and rock
weathering.
rocks: clays
limestone,
formed from
biotic remains
and rock
weathering.
Crystalline
Basement (bedrock):
2) Igneous rocks: granite, feldspar, olivine
formed by cooling of the liquid magma (naturally occurring, mobile mass of molten rock) - high p, T
formed by cooling of the liquid magma (naturally occurring, mobile mass of molten rock) - high p, T
3) Metamorphic rocks: quartzite, slate
conversion of sedimentary (& igneous) rocks.
- high p, T
conversion of sedimentary (& igneous) rocks.
- high p, T
Crustal Composition
