Formation of the american southwest including nevada
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Formation of the American Southwest (including Nevada). Basin and Range Geology . Hundreds of Millions of Years Ago The American Southwest was under water . Sediment piled creating layers of Sedimentary Rock . The Land was uplifted creating a flat plateau . Plateau: very Flat land.

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Hundreds of Millions of Years Ago

The American Southwest was under water.

Sediment piled creating layers of Sedimentary Rock.

The Land was uplifted creating a flat plateau.

Plateau:

very

Flat land


15 million years ago
15 million Years ago

Basin

Range

  • The land begins to stretch.

  • Creates normal faults

  • Causing some fault block to sink.

  • High points = Ranges(mountains)

  • Low points = Basins (valleys)


This pattern is seen all over southwest north south running basins and ranges
This pattern is seen all over SouthwestNorth-South Running Basins and Ranges


This is how las vegas valley formed west side of valley red rock
This is how Las Vegas Valley FormedWest side of Valley (Red Rock)

North-South

Running Range

North-South

running Basin



Fault blocks weather and erode over time so there are not always sharp drops
Fault Blocks weather and erode overtime, so there are not always sharp drops


Las vegas alluvial fans weathered fault blocks
Las Vegas Alluvial Fansweathered fault blocks



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