Lecture 8

Lecture 8 - Our San Andreas Fault The present Pacific-North...

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Our San Andreas Fault
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The present Pacific-North American plate boundary configuration
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THE SAN ANDREAS FAULT IS — • A transcurrent fault — a fault with largely horizontal slip (displacement) • A right-lateral strike-slip fault • A transform plate boundary
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The San Andreas fault is a The San Andreas fault is a right-lateral strike-slip fault right-lateral strike-slip fault map view Fault
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Present Pacific- North American plate boundary Note: The part of North America that is now part of the Pacific plate. Where subduction still exists in the lower 48 states.
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San Andreas Transform Plate Boundary, Carizzo Plain, CA
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GPS-derived velocities with respect to fixed reference frame note the rotation of the vectors in NorthAmerica this is the effect of motion on a sphere
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GPS-derived velocities of southern California with respect to North American plate from: SCIGN (southern California integrated GPS network) North America Pacific
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The topography of California and Nevada Note the following features: San Andreas Fault Coast Ranges Great Valley Sierra Nevada Transverse Ranges Mojave Desert Basin and Range Salton Trough
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WHAT FOLLOWS IS AN A GEOLOGIC TOUR OF THE SAN ANDREAS FAULT STARTING FROM THE GULF OF MEXICO
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Los Angeles, CA – Landsat TM Image, Orthographic View Mojave Desert Los Angeles SFV
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San Bernardino-San Gabriel burn areas,’03
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Palmdale
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Sierra Nevada San Joaquin Valley Carizzo Plain San Francisco
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The San Andreas Fault in the Carrizo Plain of Southern California Note: • The erosional scar or "rift" that marks the fault trace • The offset stream channels • The beheaded stream channels
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Offset Stream
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This note was uploaded on 01/11/2010 for the course GEOL 240Lxg at USC.

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Lecture 8 - Our San Andreas Fault The present Pacific-North...

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