1 / 10

Igneous Rock Notes

Igneous Rock Notes. Igneous rock forms when magma cools and solidifies. Classification. Composition Felisc or Mafic Texture Intrusive or Extrusive. Classification. Granite. Felsic – light colored, less dense Rich in aluminum, potassium, silicon, and sodium. Rhyolite. Classification.

leoma
Download Presentation

Igneous Rock Notes

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. Igneous Rock Notes

  2. Igneous rock forms when magma cools and solidifies.

  3. Classification • Composition • Felisc or Mafic • Texture • Intrusive or Extrusive

  4. Classification Granite • Felsic – light colored, less dense • Rich in aluminum, potassium, silicon, and sodium. Rhyolite

  5. Classification Gabbro • Mafic – dark colored, more dense • Rich in calcium, iron, and magnesium Basalt

  6. Texture • Intrusive Igenous Rock – inside Earth’s crust (corase-grained)

  7. Texture • Intrusive Igneous Rock Formations • Pluton: Large, irregular shaped intrusive bodies • Batholiths: The largest of all igneous intrusions • Stocks: Intrusive bodies that are exposed over smaller areas than batholiths • Dikes: Sheetlike intrusions that cut across previous rock units • Laccolith: Sheetlike intrusions that are oriented parallel to previous rock units • Volcanic neck: A column of igneous rock formed when magma hardens with in a vent

  8. Texture • ExtrusiveIgenous Rock – on Earth’s surface (fine-grained)

  9. Texture • Extrusive Igneous Rock Formations • Lava Flow:Formed when lava erupts from a volcano • Fissure: Long cracks in Earth’s crust where lava can flow

  10. Igneous Rock Flow Chart igneous rock rock melts rock cools Slow cooling (coarse-grained) pressure composition temperature Fast cooling (fine-grained)

More Related