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Transforming California

Transforming California

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Transforming California

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Presentation Transcript

  1. Transforming California Landforms of the San Andreas Fault Images & text by Thomas McGuire, Cave Creek Digital, Cave Creek, AZ cavecreekdigital@msn.com “If we intend to live on this planet… we truly need to understand how it works.”

  2. Exploring ways to find fault…

  3. The author at Parkfield CA, site of USGS seismic experiment. “Be here when it happens!”

  4. Fault Issues 1. Fault Scarps & Alignments 2. Sag Ponds 3. Offset Drainages 4. Distortion of Human-Made Structures 5. Infrastructure Vulnerability

  5. San Andreas Fault San Francisco San Joaquin Valley Basic California Geography Death Valley Mojave Desert Los Angeles Imperial Valley

  6. San Andreas Lakes viewed from the south near San Jose

  7. The San Andreas fault is part of the boundary between the North American and Pacific tectonic plates. It is classified as a right lateral transform fault. (To a person facing the fault, the far side shifts to the right.) Our Dynamic Earth, Robert Tilling, USGS, 1996

  8. The Sea of Cortez.. (Known to Gringos as The Gulf of California.)

  9. The US-Mexican Border (fence line) is as impervious to plate processes as it is to immigration.

  10. The All-American Canal brings Colorado River water to the Imperial Valley of California.

  11. Wind Farm north of Palm Springs near San Gorgonio Pass.

  12. The main trace of the fault runs NE of Los Angeles, but numerous splay faults affect the LA Basin.. (So does smog.)

  13. California Aqueduct at Palmdale, north of Los Angeles.

  14. Gates along the California Aqueduct at Palmdale