1 / 28

National Parks in Volcanic Arcs:

National Parks in Volcanic Arcs: Mt . Rainer, Crater Lake, Lassen Peak, Katmai , Lake Clark, Yosemite. 1. ADD WATER. Accreted wet sediments. Hot springs at ocean ridge. 2. MOVE WATER. From ocean crust to mélange. 2. MOVE WATER. blueschist. greenschist. 2. MOVE WATER.

byron
Download Presentation

National Parks in Volcanic Arcs:

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. National Parks in Volcanic Arcs: Mt. Rainer, Crater Lake, Lassen Peak, Katmai, Lake Clark, Yosemite

  2. 1. ADD WATER Accreted wet sediments Hot springs at ocean ridge

  3. 2. MOVE WATER From ocean crust to mélange

  4. 2. MOVE WATER blueschist greenschist

  5. 2. MOVE WATER From ocean crust and mélange to lithospheric mantle

  6. 2. MOVE WATER serpentinite

  7. 2. MOVE WATER From ocean crust to asthenosphere

  8. 2. MOVE WATER basalt amphibolite eclogite

  9. 3. PARTIAL MELTING Astheno-sphere

  10. 3. PARTIAL MELTING Mafic to intermediate magma

  11. 3. PARTIAL MELTING Residual solids Lithospheric mantle

  12. 3. PARTIAL MELTING Felsic magma

  13. 4. DIFFERENTIATION Diapirs Ductile lower crust

  14. 4. DIFFERENTIATION Brittle upper crust Fractures

  15. 4. DIFFERENTIATION Rhyolitic Andesitic Basaltic

  16. 4. DIFFERENTIATION Dacite Basalt Rhyolitic Andesitic

  17. Differentiation of andesite into dacite and basalt

  18. 4. DIFFERENTIATION Magma chamber

  19. 4. DIFFERENTIATION Basaltic eruptions are pyroclastic here

  20. 4. DIFFERENTIATION Rhyolite and dacite eruptions can be effusive

  21. 4. DIFFERENTIATION Rhyolite and dacite eruptions can be Vesuvian

  22. Mount Vesuvius

  23. 4. DIFFERENTIATION Andesite eruptions can be effusive or Vesuvian

  24. 4. DIFFERENTIATION Composite volcano

  25. Wet and variable

  26. Basalt Andesite Dacite Rhyolite dome dome Rare in composite volcanoes Low Gas flow FLOWS

  27. Basalt Andesite Dacite Rhyolite dome dome Rare in composite volcanoes Low Gas flow FLOWS High Gas Cinders Ash PYROCLASTICS

More Related