Types of Rocks and Their Formation. Sedimentary Rock Formation: Layers of sediment are deposited at the bottom of seas and lakes. Over millions of years,
Week Five: Igneous Rock Granite, Basalt, Obsidian, Pumice and many others.
Rocks and Their Origins Petrologic Classification.
ROCK CYCLE UNIT REVIEW By Mrs. Susan Dennison 2012-13.
ROCK CYCLE UNIT REVIEW
