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rock cycle
| Question | Answer |
|---|---|
| 1. Metamorphic Rocks Classified: | formed from heat and pressure deep beneath the earth's surface change sedimentary and igneous rocks into metamorphic |
| A. Grains: | the arrangement of the grains the arrangement of the grains |
| Foliated: | grains arranged in parallel layers or bands |
| Non-foliated | mineral grains are arranged randomly |
| Marble | building materials |
| Slate | flooring, roofing, chalkboards |
| Changed Rocks: | |
| A. | A. Limestone to marble |
| B. | B. Sandstone to quartzite |
| C. | C. Shale to slate |
| D. | D. Granite to gneiss |
| 1. The Rock Cycle: | Forces inside the Earth and at the surface of the Earth produce a rock cycle that builds, destroys, and changes the rocks in the crust. |
| Plate Tectonics | 2 types |
| 2 A. Sub-ducting Oceanic Plates | Plate movements (downward) drive the rock cycle by pushing rocks back into the mantle, where they melt and become magma again. |
| 2B. Colliding Continental Plates | Plate movement that causes folds, faulting, and uplifting of the crust that move rocks through the rock cycle. |