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Details Title: All things Rocky Description: Different terms and descriptions for Geology Total Flash Cards: 10 Created: 02/12/2007 14:02:56	To study from this set of flash cards, or to create your own your own study flash cards, register HERE. If you are already a registered user, CLICK HERE.
Cards Term Igneous Rocks Definition These rocks are rocks that have been formed by the eruptions of volcanoes.Examples are Basalt,and Granite. Term Pangea Definition Pangea is the continent that was believed to have been the super-continent 250 million years ago. Term Subduction Zone Definition The subduction zone is where a piece of the earths crust(plate) is going below another piece of the earth crust(plate). Term Metamorphic Rocks Definition These rocks are rocks that have been changed from the pressures of time and weight from the earths surface. Examples are Gneiss and Slate Term Sedimentary Rocks Definition There rocks are formed from the accumulation of small pieces broken off of pre-existing rocks. An example is Limestone Term Ring of Fire Definition The ring of fire is a ring around the pacific ocean that spreads from the west coast of North America to Japan and other areas where there is a abundance of volcanic activity. This is due to convergent boundaries. Term Divergent Boundary Definition A divergent boundary is where two plates on the earth crust are moving away from eachother. An example is the Mid-Atlantic Ridge. Term Plate Techtonics Definition Plate Techtonics is a theory that the planet earth is divided into different plates on the crust surface of the earth. These plates are always moving. Term Convergent Boundary Definition A convergent boundary is where two plates on the earth's crust are colliding with eachother. An example is Himilayas Term Layers of the Earth Definition The earth consists of the crust, the mantle, and the core. The crust is made up of the lithosphere and the asthenosphere.