EARTH SCIENCE
TECTONICS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
Eurasian Plate & Pacific Plate
|
|
Eurasian Plate & North America Plate
|
|
North American Plate & Pacific Plate
|
|
Indo Australian Plate & South American Plate
|
Detailed explanation-1: -The San Andreas Transform Plate Boundary developed within the past 40 million years as a large portion of the Farallon Plate was subducted and the Pacific Plate made contact with the North American Plate in the California region.
Detailed explanation-2: -It is classified as a right lateral (dextral) strike-slip fault. Although both plates are moving in a north westerly direction, the Pacific Plate is moving faster than the North American Plate, so the relative movement of the North American Plate is to the south east.
Detailed explanation-3: -Two of these moving plates meet in western California; the boundary between them is the San Andreas fault. The Pacific Plate (on the west) moves northwestward relative to the North American Plate (on the east), causing earthquakes along the fault.
Detailed explanation-4: -strike-slip fault-a fault on which the two blocks slide past one another. The San Andreas Fault is an example of a right lateral fault.
Detailed explanation-5: -Tectonic setting of the San Andreas Fault (transform plate boundary) in California, the subduction zone (convergent plate boundary: oceanic-continental collision) in the Pacific Northwest.