Physiographic Provinces of Virginia

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Physiographic Provinces of Virginia: 

Physiographic Provinces of Virginia Earth Science Deborah Bowyer, ITRT

Virginia is divided into ____ major physiographic provinces (physio-physical features, graphic—map of).: 

Virginia is divided into ____ major physiographic provinces (physio-physical features, graphic—map of). 5 Coastal Plain Piedmont Blue Ridge Valley & Ridge Appalachian Plateau W E

The Coastal Plain A gently seaward sloping surface in Eastern Virginia: 

The Coastal Plain A gently seaward sloping surface in Eastern Virginia 0’ sea level 300’ -Coastal Plain Sediments “_______” of loose sediments that have eroded from the mountains. Pile The highest elevation is about 300 ft. above sea level.

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Kinds of rocks: Ages of rocks: Fossils: Sedimentary, loose sediment 0-225 mya (millions of years ago) Sea critters

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This area is rich in _____ and ______ resources. sand gravel b. Major cities are located here. Fall line: a. Waterfalls and rapids are located here.

The Piedmont A gently rolling area with hills and valleys (pied-foot, mont-mountains). This is located in Central Virginia.: 

The Piedmont A gently rolling area with hills and valleys (pied-foot, mont-mountains). This is located in Central Virginia. W E Blue Ridge Piedmont Coastal Plain

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An episode of ___________ that occurred before the formation of the Appalachian Mountains created these rocks. They are part of the ______ of the mountains. subduction roots

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Kinds of rocks: Ages of rocks: Fossils: Igneous and metamorphic (some sediment) 245-570 mya Exception: Culpepper Co. Dinosaur tracks None

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Blue Ridge A narrow line of mountains north of Roanoke, a broader, upland surface south of Roanoke. _________ mountains in Virginia. The Appalachian mountains are ________ and more _________ than the Rocky Mountains. Highest older eroded

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Mount Rogers Elevation: 5719’ __________________ in Virginia. Highest peak W

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Kinds of rocks: Ages of rocks: Fossils: Igneous & metamorphic 245 mya-1 bya None ____________ occurred during the Appalachian Mountain formation. These are the ________ rocks in Virginia. Metamorphosis oldest

Valley and Ridge An area of long, parallel ridges separated by valleys: 

Valley and Ridge An area of long, parallel ridges separated by valleys W Plateau Ridges Valleys Great Valley Blue Ridge Thrust Faults Alleghany County

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Sections of hard, resistant rocks make up the ridges, while soft, eroded limestone makes up the valleys. ________ has eroded and leaves caves and caverns (karst topography). Limestone

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Folding and faulting occurred during the formation of the Appalachian Mountains (when N. America collided with Africa and Europe). This occurred during the Paleozoic Era (300-265 million years ago).

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Kinds of rocks: Ages of rocks: Fossils: Sediment 350-570 mya Sea critters

Appalachian Plateau This is a series of plateaus separated by faults. “The Boot” : 

Appalachian Plateau This is a series of plateaus separated by faults. “The Boot” This area is known for rich deposits of ____, ____, and _________. coal oil natural gas Coal seams

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Kinds of rocks: Ages of rocks: Fossils: Sediment 286-360 mya Scale trees Ferns Some sea critters

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W E “Rolling Hills” Plateaus Appalachian Plateau Valley & Ridge Alleghany County Faults