Geomorphic Regions of California

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California Geography

• Geomorphic Regions of California

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Geomorphic Regions of California
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GEOMORPHIC REGIONS

• Klamath Mountains
• Southern Cascades
• Modoc Plateau
• Northern Coast Ranges
• Central Coast Ranges
• Sierra Nevada
• Central Valley
• Sacramento Valley
• San Joaquin Valley

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GEOMORPHIC REGIONS

• Basin Range
• LA. Basin
• The Mojave Desert
• Peninsular Range
• The Salton Sink (Colorado Desert)

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GEOMORPHIC REGIONS

• Basin Range
• LA. Basin
• The Mojave Desert
• Peninsular Range
• The Salton Sink (Colorado Desert)

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Californias Geomorphic Regions

• Northwestern CA the Klamath Mountains
• coastal influences
• mild temperature
• precipitation is rain
  with some snow
• rapid runoff rather than
  spring snow melt
• swift rivers, faster erosion than any other
  region

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Californias Geomorphic Regions

• Klamath Mountains
• Location
• located west of volcanic Cascade Range
• extends into Oregon south to Great Valley
• Pacific border province
• Mountains
• elevation 5-7000 feet with Trinities over 8900
  feet
• Trinity Alps were glaciated
• individual ranges
• South Fork, Trinity Mts., Trinity Alps, Scott
  Mts. Siskiyous Mts. Salmon Mts.

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Californias Geomorphic Regions

• Klamath Mountains
• Geomorphology
• complex region including Paleolithic Mesolithic
  granitic metamorphic rocks
• a continuation of the Sierra Nevada
• intrusive igneous granitic rock was uplifted
• contains abundant marine fossils

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Californias Geomorphic Regions

• Klamath Mountains
• Fluvial Features
• Rivers
• Klamath River which runs 150 miles through
  northern part of region
• Southern part of region drained by Trinity River
• Lakes
• glacial tarns in Trinity Alps
• man made Trinity lake on Trinity River

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Californias Geomorphic Regions

• Klamath Mountains
• Special Features
• Castle Crag
• an uplifted intrusive igneous granite formation

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GEOMORPHIC REGIONS

• Klamath Mountains
• Southern Cascades
• Modoc Plateau
• Northern Coast Ranges
• Central Coast Ranges
• Sierra Nevada
• Central Valley
• Sacramento Valley
• San Joaquin Valley

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Californias Geomorphic Regions

• Southern Cascade Range
• extrusive igneous
• volcanic landforms
• Volcanoes, plug domes, cinder cones
• inland with greater temperature extremes
• precipitation is rain
  with some snow glaciation on Mt. Shasta
• rivers runoff from Mt. Shasta
• less erosion due to weather resistant volcanic
  rocks

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Californias Geomorphic Regions

• Southern Cascade Range
• Location
• located between Klamath Range volcanic Modoc
  Plateau
• Cascade range extends into Oregon, Washington
  Canada and south to Great Valley
• Mountains
• Mt. Shasta
• Lassen Peak
• Sutter Buttes

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Californias Geomorphic Regions

• Southern Cascades
• Geology
• volcanic region of igneous rocks including
  andesite, ryolite, basalt
• very young geologic region (1-10 million years)
• covers over former granitic range

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Californias Geomorphic Regions

• Southern Cascade Ranges
• Fluvial Features
• Rivers
• Klamath River flows north into Oregon
• Sacramento, McCloud headwaters also start at Mt.
  Shasta and flow southward into the Great Valley
• Lakes
• Mt. Shasta Lake ( man made at the confluence of
  the Sacramento, Pit and McCloud rivers)

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Californias Geomorphic Regions

• Southern Cascade Range
• Special Features
• Strato- Volcano
• Mt. Shasta 14,162 ft.
• Plug Dome
• Lassen Peak 10,457 ft.

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GEOMORPHIC REGIONS

• Klamath Mountains
• Southern Cascades
• Modoc Plateau
• Northern Coast Ranges
• Central Coast Ranges
• Sierra Nevada
• Central Valley
• Sacramento Valley
• San Joaquin Valley

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GEOMORPHIC REGIONS

• Basin Range
• LA. Basin
• The Mojave Desert
• Peninsular Range
• The Salton Sink (Colorado Desert)

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Californias Geomorphic Regions

• Modoc Plateau
• lava plateau
• extrusive igneous
• fissure flows
• basaltic plateaus
• inland with greater temperature extremes
• precipitation is very sparse
• considered a desert

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Californias Geomorphic Regions

• Modoc Plateau
• little surface water or rivers - lots of
  underground water transfer in tubes
• less erosion due to weather resistant volcanic
  rocks

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Californias Geomorphic Regions

• Modoc Plateau
• Location
• located east of Cascade Range and adjacent to the
  Basin Range Region
• The Modoc Plateau is the California part of the
  greater Colombian Volcanic Plateau that extends
  into Oregon, Washington Canada Mountains

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Californias Geomorphic Regions

• Modoc Plateau
• Geology
• volcanic region of basaltic fissure flows
• rolling upland dotted with volcanic cones lava
  flows
• glass flows, pumice beds, volcanic plugs domes,
  lava tubes with caves
• very young geologic region (1-10 million years)
• Cenozoic

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Californias Geomorphic Regions

• Modoc Plateau
• Fluvial Features
• Under ground Water in lava tubes
• Burney Falls - spring water emerging from
  underground
• Lakes
• Goose Lake (ephemeral lake, fault block lake
• Tule Lake

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GEOMORPHIC REGIONS

• Klamath Mountains
• Southern Cascades
• Modoc Plateau
• Northern Coast Ranges
• Central Coast Ranges
• Sierra Nevada
• Central Valley
• Sacramento Valley
• San Joaquin Valley

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GEOMORPHIC REGIONS

• Basin Range
• LA. Basin
• The Mojave Desert
• Peninsular Range
• The Salton Sink (Colorado Desert)

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Californias Geomorphic Regions

• Sierra Nevada
• backbone of CA

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Californias Geomorphic Regions

• Sierra Nevada
• precipitation barrier
• drastic vertical temperature changes
• precipitation rain, snow, glaciers
• rapid runoff
  spring snow melt
• swift rivers, fast erosion

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Californias Geomorphic Regions

• Sierra Nevada
• Location
• inland between Central Valley Basin Range
• extends from Cascades to Transverse Range

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Californias Geomorphic Regions

• Sierra Nevada
• Mountains
• elevation 1000-14,000 feet
• individual ranges
• Cathedral Range, Great Western divide, Greenhorn
  Mountain, Grizzly Mountains

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Californias Geomorphic Regions

• High Sierra

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Californias Geomorphic Regions

• Sierra Nevada
• Lake Tahoe

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Californias Geomorphic Regions

• Sierra Nevada
• Geology
• Mesozoic Granite
• related to Klamath Peninsula ranges
• separated by lava flows
• intrusive igneous granitic rock was uplifted
• huge tilted fault block
• thrust fault
• tilted from sea 130 mya
• Subduction of oceanic plates overriding
  continental

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Californias Geomorphic Regions

• Sierra Nevada
• Geology (cont)
• Most volcanic landscapes can be found in Sierra
  Nevada due to intense volcanic past
• ash, bombs, cinder cones, lahars volcanoes
• Glacial
• 2000 ybp glaciers scoured area
• U shaped valleys of Yosemite
• Cirques Tarns near Donner
• general rugged appearance

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Californias Geomorphic Regions

• Sierra Nevada
• Special Features
• Yosemite Valley

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Californias Geomorphic Regions

• Sierra Nevada
• Special Features
• Devils Postpile

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Californias Geomorphic Regions

• Sierra Nevada
• Special Features
• Mammoth Mt.

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GEOMORPHIC REGIONS

• Klamath Mountains
• Southern Cascades
• Modoc Plateau
• Northern Coast Ranges
• Central Coast Ranges
• Sierra Nevada
• Central Valley
• Sacramento Valley
• San Joaquin Valley

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GEOMORPHIC REGIONS

• Basin Range
• LA. Basin
• The Mojave Desert
• Peninsular Range
• The Salton Sink (Colorado Desert)