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Physiography of North America, The U.S.A., and Georgia
Geomorphology/Intro. to Landforms
23
Geology
Undergraduate 1
07/31/2009

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Cards

Term

What is the difference between a physiographic realm and a physiographic region?

Definition

Physiographic realm covers a broader area and is less detailed while having uniform landscapes and landforms.

Term

Describe the Canadian Shield and identify its region(s).

Definition

  • One of the physiographic realms of North America
  • Covered with thin layers of igneous and metamorphic crystalline rock
  • Is the original core of North America
  • 1 region - the Arctic Coastal Plain - runs south of the Hudson Bay and Arctic Coast.

Term

Describe the Interior Plains, and identify the regions that are a part of it.

Definition

  • Part of the physiographic realm of North America.
  • Underlain by sedimentary rocks
  • Low relief to "Wave-Like" hills
  • Regions are Great Plains, Interior Lowlands, and Interior Highlands

Term

What makes the great plains region unique to the interior plains?

Definition

more arid and grassland than any other region in the interior plains.

Term

Describe the Ozark and Ouachita Mountains of the interior highlands. 

Definition

  • Ozark - domed sedimentary strata
  • Ouachita - folded, ridge-valley type mountains

Term

Describe the Appalachian Highlands.

Definition

  • Characterized by elongated ridges in a parallel zig-zag pattern
  • Starts in AL and GA, goes as far as the Maritime Provinces of Canada.
  • One of the physiographic realms of North America

Term

What marks the Appalachian Plateau?

Definition

Alleghany and Cumberland Escarpments

Term

Identify features of the Ridge and Valley Region.

Definition

Parallel ridges with numerous anticlines and synclines, eastern end is in the Great Valley of the Appalachians.

Term

What does the Blue Ridge Region contain?

Definition

Highly metamorphic, ancient, crystalline rock

Term

What is the Piedmont and what notable feature is part of this region?

Definition

"Foothills" of the Appalachians; eastern edge is the Fall Line

Term

Identify the underlaying rocks and the highest elevation of the southern Rocky Mountains.

Definition

  • Crystalline rock with upturned sedimentary strata
  • Elevations higher than 14,000 ft asl

Term

Describe the Middle Rocky Mountains.

Definition

Fault-block mountains with anticlinal uplifts of sedimentary rocks.

Term

What mountain range is part of the middle rocky mountains region?

Definition

Tetons

Term

Describe the Northern Rocky Mountains region.

Definition

Contains large batholiths, folded sedimentary strata, and extrusive volcanism.

Term

What is significant about the Columbia Plateau?

Definition

One of the world's largest lava surfaces.

Term

Describe the Colorado Plateau

Definition

Arid with flat horizontal sedimentary strata

Term

What important landmark is part of the Colorado Plateau?

Definition

Grand Canyon

Term

Describe the Basin Range.

Definition

Highly faulted area with a lot of horsts and grabens.

Term

Describe the Pacific and Valley Mountain Region.

Definition

  • North - South parallel ridges and mountains
  • Important Feature - plate boundary between the pacific and north american plates and the San Andreas Fault Zone

Term

Describe the Gulf - Atlantic Coastal Plain

Definition

Elevations below 1000 feet, low relief, southern half of Georgia lies on this plain

Term

Describe the Central American Mountains Region.

Definition

Convergent plate boundary zone dominated by volcanos and volcanic landforms

Term

What states are a part of the South East Region of the United States

Definition

NC, SC, TN, GA, AL MS, FL

Term

Identify the Regions of Georgia

Definition

  1. Appalachian Plateau - Far NW corner of the state
  2. Ridge and Valley 
  3. Blue Ridge - location of Dahlonega, Location of Brasstown Bald
  4. Piedmont - Athens, Atlanta, Gainesville
  5. Southern half of the state

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