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California Geology #1

California Geology #1. California is unique and diverse!. Regions of CA. What are some of the different regions of CA? What makes them different? Landscape?? Above and below the surface What has happened/ caused differences above and below?. Inside (under) CA.

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California Geology #1

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  1. California Geology #1 California is unique and diverse!

  2. Regions of CA • What are some of the different regions of CA? • What makes them different? • Landscape?? Above and below the surface • What has happened/ caused differences above and below?

  3. Inside (under) CA What can you recall about plate boundaries? Which ones? What type? What do they do? Mountains formed by interactions between plates-

  4. Mountains • Mountains are formed by the interactions between plates forming large pools of magma which cooled and crystallized forming ________ rock (batholiths). • Uplifting and erosion (over millions of years) exposed those batholiths – forming the Sierra Nevada Mtn. Range. • Sketch on your map where the Sierra Nevada Mtn Range is…..

  5. Sierra Nevada

  6. Mountain Ranges • East of this uplifting caused stresses and faults. Movements of these faults and stressed formed the Basin and Range Mtns • Sketch on map.

  7. Cascade Mountains • Where is the Juan de Fuca Plate?

  8. Juan de Fuca • As the Juan de Fuca plate subducted under the North American Plate it formed volcanoes of the Cascade Mountains. • Draw and label on your map, the Cascade Mountain and specifically Mt. Shasta and Lassen Peak.

  9. Coastal Ranges • Where are the coastal ranges? • They are also a result of plates moving. The large slabs of crust stuck together (adhered / grew ) onto the North American Plate. • Draw on map.

  10. San Andreas Fault • The forces causing uplifting also created the SAF. Draw and label

  11. Basins • The faulting in other areas caused portions of crust to dip down creating basins like the central valley and Basin and Range Regions. • Draw and label these areas.

  12. Outside (above) CA • Water, glaciers, and wind reshaped the surface through erosion and deposition.

  13. Water • Shaped mountains, hillsides, and river valleys • Why would water form deep v-shaped valleys in the mountain regions but on the valley floors it forms meandering, grassy regions?

  14. Water !

  15. Glaciers • Carved peaks and u-shaped valleys formed as ice cut it’s way through

  16. Wind • Deposits of sediment produced landscaping like Mojave Desert and Central Valley

  17. Draw and label Mojave Desert • Mojave

  18. Central Valley • The Central Valley began as an inland sea. • The land on both sides uplifted and formed the Sierra Nevadas and Coastal Ranges leaving a basin. • Over millions of years sediment has washed in to the basin filing it from nearby mountain ranges.

  19. Assignment • On your map handout….. Color the provinces (areas) of California that you learned about.

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