By: Jason M
- Formed from cooling and solidification of magma or lava.
- Formed above and below the earths surface.
- There are extrusive rocks that cool very fast on the earths surface and there are intrusive rocks that cool very slowly under the earths surface.
- Formed when sediment is deposited out of air.
- Formed on the earths surface.
- Organic which form by the accumulation of plant or animal debris and chemical which form from the precipitation of minerals from water,
- Chemically changed due to different temperatures and pressures.
- Formed deep beneath the earths surface.
- Non-foliated rocks are formed around igneous intrusions and foliated rocks are also formed the same way.
- Formed in the earths crust
- Glassy, and the crystal size is small
- Black, density is 1, composes gabbro, olivine, and plagioclase.
- Clastic, grain size is less than 0.0004
- Composes mostly quartz,feldspar, and clay minerals
- Compact, may split easily
- Fine grain size
- Composes carbon
- Regional metamorphism
- Metamorphism of bituminous coal
Cycle of processes undergone by rock's in the earth's crust