1 / 13

Rocks and Rock Cycle

Rocks and Rock Cycle . Rocks. A Rock is a mixture of two of more minerals- a mixture is a physical intermingling of things and can be separated by physical means. . Granite is a rock containing Feldspar, Quartz, and Bioite mica. Three Types of Rocks. Igneous Extrusive / Volcanic (Basalt)

keagan
Download Presentation

Rocks and Rock Cycle

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Rocks and Rock Cycle

  2. Rocks • A Rock is a mixture of two of more minerals- a mixture is a physical intermingling of things and can be separated by physical means. • Granite is a rock containing Feldspar, Quartz, and Bioitemica

  3. Three Types of Rocks • Igneous Extrusive / Volcanic (Basalt) Intrusive/ Plutonic (Granite) • Metamorphic Marble, Gniess • Sedimentary Sandstone, Limestone • All types related through the Rock Cycle

  4. IGNEOUS ROCKS • Form from the cooling of molten magma • Contain individual mineral crystals • Texture- course, medium and fine grain • Overall Color- light, medium, and dark • Extrusive / Volcanic rock forms when molten rock is cooled quickly on the surface. (small crystals) • Intrusive / Plutonic rocks form when magma cools slowly far beneath the earth surface. (Larger crystals)

  5. Extrusive / Volcanic Rock Obsidian Pumice

  6. Intrusive / Plutonic Granite Common Minerals Quartz Feldspar

  7. METAMORPHIC ROCK • Form from older rock either igneous or sedimentary when under intense heat and pressure or do to chemical action over time. This typically happens at great depths beneath the earths’ surface. • Have foliation- minerals arranged in bands and streaks • Shale- Slate- Phyllite- Schist- Gneiss

  8. Metamorphic Rocks Marble Slate

  9. Metamorphic Rock Gneiss Garnet Schist

  10. SEDIMENTARY ROCKStrata! Layers • These rocks are formed when sediment (bits and pieces of other rock) are cemented and compressed under pressure. This is called Lithification. • 3 types • Clastic – Example Sandstone, Conglomerate • Chemical- Example limestone • Organic- Example Coal

  11. Sedimentary Rock Sandstone Conglomerate

  12. How do rocks change? • This process of changing happens in a cycle where rocks can be changed from sedimentary, metamorphic, igneous in multiple processes. • Any rock can be changed into another either through weathering and erosion, compaction or lithification, melting and cooling, compression and being squeezed under pressure.

  13. Rock Cycle

More Related