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Physiographic Provinces of Virginia. Earth Science Deborah Bowyer, ITRT. 5. Virginia is divided into ____ major physiographic provinces (physio-physical features, graphic—map of). Coastal Plain. Valley & Ridge. Appalachian Plateau. E. W. Blue Ridge. Piedmont.
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Physiographic Provinces of Virginia Earth Science Deborah Bowyer, ITRT
5 Virginia is divided into ____ major physiographic provinces (physio-physical features, graphic—map of). Coastal Plain Valley & Ridge Appalachian Plateau E W Blue Ridge Piedmont
The Coastal PlainA gently seaward sloping surface in Eastern Virginia 300’ -Coastal Plain Pile “_______” of loose sediments that have eroded from the mountains. 0’ sea level Sediments The highest elevation is about 300 ft. above sea level.
Kinds of rocks: • Ages of rocks: • Fossils: Sedimentary, loose sediment 0-225 mya (millions of years ago) Sea critters
sand This area is rich in _____ and ______ resources. gravel Fall line: b. Major cities are located here. a. Waterfalls and rapids are located here.
The PiedmontA gently rolling area with hills and valleys (pied-foot, mont-mountains). This is located in Central Virginia. E Blue Ridge Coastal Plain Piedmont W
subduction An episode of ___________that occurred before the formation of the Appalachian Mountains created theserocks. They are partof the ______ ofthe mountains. roots
Kinds of rocks: • Ages of rocks: • Fossils: Igneous and metamorphic(some sediment) 245-570 mya None Exception: Culpepper Co.Dinosaur tracks
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
Mount Rogers Elevation: 5719’ W Highestpeak __________________ in Virginia.
Kinds of rocks: • Ages of rocks: • Fossils: Igneous & metamorphic 245 mya-1 bya None Metamorphosis ____________ occurred during the Appalachian Mountain formation. These are the ________ rocks in Virginia. oldest
Valley and RidgeAn area of long, parallelridges separated by valleys W Ridges Valleys Great Valley Blue Ridge Plateau Thrust Faults Alleghany County
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
Folding and faulting occurred during the formation of the AppalachianMountains (when N. America collided with Africa and Europe). This occurred during the PaleozoicEra (300-265 million years ago).
Kinds of rocks: • Ages of rocks: • Fossils: Sediment 350-570 mya Sea critters
Appalachian PlateauThis 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
Kinds of rocks: • Ages of rocks: • Fossils: Sediment 286-360 mya Scale treesFernsSome sea critters
W E Appalachian Plateau Plateaus “Rolling Hills” Valley & Ridge Faults Alleghany County