Physiographic Provinces of Virginia

Information about Physiographic Provinces of Virginia

Published on October 3, 2007

Author: Irvette

Source: authorstream.com

Content

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. Slide4:  Kinds of rocks: Ages of rocks: Fossils: Sedimentary, loose sediment 0-225 mya (millions of years ago) Sea critters Slide5:  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 Slide7:  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 Slide8:  Kinds of rocks: Ages of rocks: Fossils: Igneous and metamorphic (some sediment) 245-570 mya Exception: Culpepper Co. Dinosaur tracks None Slide9:  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 Slide10:  Mount Rogers Elevation: 5719’ __________________ in Virginia. Highest peak W Slide11:  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 Slide13:  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 Slide14:  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). Slide15:  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 Slide17:  Kinds of rocks: Ages of rocks: Fossils: Sediment 286-360 mya Scale trees Ferns Some sea critters Slide18:  W E “Rolling Hills” Plateaus Appalachian Plateau Valley & Ridge Alleghany County Faults

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