Sedimentary rocks | rocks formed by the hardening and cementing of rock fragments,plant and animal remains or chemicals that form on lake and ocean bottoms. |
Metamorphic rocks | Rocks formed when other rocks are put under extreme heat and pressure |
conglomerate | a composite rock made up of particles of varying size |
Fossils | the remains, impressions, or any other evidence of plants and animals preserved in rock. |
coal | example of a organic sedimentary rock |
rock salt | example of a rock of chemical sedimentary origin |
sandstone | example of a clastic sedimentary rock (formed from the fragments of other rocks) |
rock | a group of minerals bound together |
Regional Metamorphism | a change in the texture, structure, or chemical composition of a rock due to changes in temperature and pressure over a large area, generally as a result of tectonic forces. |
Contact Metamorphism | a change in the texture, structure, or chemical composition of a rock due to contact with magma. |
Foliation | The metamorphic rock texture in which mineral grains are arranged in planes or bands. |