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Physiographic Provinces of Virginia Earth Science Deborah Bowyer, ITRT.

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Presentation on theme: "Physiographic Provinces of Virginia Earth Science Deborah Bowyer, ITRT."— Presentation transcript:

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2 Physiographic Provinces of Virginia Earth Science Deborah Bowyer, ITRT

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

4 The Coastal Plain 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.

5 1. Kinds of rocks: 2. Ages of rocks: 3. Fossils: Sedimentary, loose sediment mya (millions of years ago) Sea critters

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

7 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. The Piedmont W E Blue Ridge Piedmont Coastal Plain

8 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

9 1. Kinds of rocks: 2. Ages of rocks: 3. Fossils: Igneous and metamorphic (some sediment) mya Exception: Culpepper Co. Dinosaur tracks None

10 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 oldereroded

11 Mount Rogers Elevation: 5719’ ___________ _______ in Virginia. Highest peak W

12 1.Kinds of rocks: 2.Ages of rocks: 3.Fossils: Igneous & metamorphic 245 mya-1 bya None ____________ occurred during the Appalachian Mountain formation. These are the ________ rocks in Virginia. Metamorphosis oldest

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

14 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

15 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 ( million years ago).

16 1.Kinds of rocks: 2.Ages of rocks: 3.Fossils: Sediment mya Sea critters

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

18 1.Kinds of rocks: 2.Ages of rocks: 3.Fossils: Sediment mya Scale trees Ferns Some sea critters

19 WE “Rolling Hills” Plateaus Appalachian Plateau Valley & Ridge Alleghany County Faults


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