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Topic: Igneous Rocks

Topic: Igneous Rocks. Igneous Rocks. - Lava – Magma –. Cooling. Solidification – Crystallization –. Igneous Classification. Mineral composition - Texture - -. Important!!!!. Extrusive Igneous Rocks. - - -. Intrusive Igneous Rocks. - -.

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Topic: Igneous Rocks

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  1. Topic: Igneous Rocks

  2. Igneous Rocks • - • Lava – • Magma –

  3. Cooling • Solidification – • Crystallization –

  4. Igneous Classification • Mineral composition - • Texture - • - Important!!!!

  5. Extrusive Igneous Rocks • - • - • -

  6. Intrusive Igneous Rocks • - • -

  7. Animation: Igneous Rock Environments of Formation • http://www.classzone.com/books/earth_science/terc/content/investigations/es0603/es0603page05.cfm?chapter_no=investigation

  8. Best Friend Pg 6 Scheme for Igneous Rocks for identification Take out YOUR ESRT!

  9. Identifying Igneous Rocks Igneous Rock Names Environment of Formation

  10. Grain Size Description Crystal size

  11. Bubbles? Yes= Vesicular

  12. Bubbles? No=Non-vesicular

  13. Neither Light nor Dark Color Very Light Not Very Dark Very Dark Light NotVery Light Dark Darkest Lightest

  14. Density Medium Density Very Low Low Dense Very Dense

  15. Composition

  16. Composition • Felsic Rocks – • - • - • -

  17. Mafic • - • - • -

  18. Finding The Minerals Unless you have other information, work in the middle of the rock’s box. Identify the rock.

  19. This is the amount of Potassium Feldspar in the rock.

  20. This is the amount of Quartz in the rock.

  21. This is the amount of Plagioclase Feldspar in the rock.

  22. Use tick marks on a scrap paper to measure the percentage. Potassium Feldspar 25% Quartz 40%

  23. Name a light-colored, fine-grained rock with no bubbles. Practice

  24. Name a coarse-grained, dense rock & contains only Olivine.

  25. Name a very light-colored, glassy, extrusive rock with bubbles.

  26. FQ: Name the fine grain, vesicular igneous rock, with the minerals plagioclase feldspar, pyroxene and amphiboles.

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