Unit #2: Rocks, Minerals, and Resources. Rock - a naturally formed solid piece of the Earth ’ s crust composed of a mixture of minerals All rocks have minerals. http://www.youtube.com/watch?v=CvDw07iYaJQ&safe=active. Rocks that contain 1 mineral are called monomineralic.
What three factors are used to identify igneous rocks?
What processes cause the formations of the following rock types? (Igneous, Metamorphic, Sedimentary)
Where do sediments come from?
Clastic- Fragments of Other Rocks-Grain Size
Evaporties- Sea Water evaplorates leaving behind sediments. (Salt)
Precipitates- Chemical- Solutioning(ions)
Biologic- Plankton, Diatoms
Biologic- Terrestrial– Plants/Trees
Marine- Shells, Coral, Stromatalites
Largest Particles Settle First
Roundest Particles Settle First
The most dense particles settle first.
Large, Round, Dense Sediment
Small, Flat, Lighter Sediment