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Silicate structures

Silicate structures. Volcano Types. Volcano Types. Pahoehoe Lava. Aa Lava. Lava Tubes. 10-15 my. Cenozoic Volcanism. 5-10 my. 0-5 my. Seven Sisters, San Luis Obispo. Morro rock. Flood Basalts. Modoc Plateau. Short History of the Modoc Plateau.

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Silicate structures

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  1. Silicate structures

  2. Volcano Types

  3. Volcano Types

  4. Pahoehoe Lava

  5. Aa Lava

  6. Lava Tubes

  7. 10-15 my Cenozoic Volcanism 5-10 my 0-5 my

  8. Seven Sisters, San Luis Obispo

  9. Morro rock

  10. Flood Basalts

  11. Modoc Plateau

  12. Short History of the Modoc Plateau • Late Cretaceous – Klamath Mountains separate from the Northern Sierra Nevada creating the Modoc Seaway • Miocene (~17-15 ma) - Flood basalts began to erupt, possibly precipitated by asteroid or comet impact • Basin and Range faulting has converted the flat plateau topography into mountain ranges and valleys.

  13. Medicine Lake (shield) volcano Easternmost and largest of Cascade Volcanoes

  14. Glass Mountain (1,000 yrs)

  15. Mammoth Crater – Lava Beds Natl. Mon.(30,000 yrs)

  16. Valentine Cave – Lava Beds Natl. Mon.

  17. Lavacicles in cave

  18. Lava Beds cave

  19. Schonchin Buttes

  20. McArthur-Burney Falls State Park

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