2. MATHEMATICS & SCIENCE CENTER

3. Go to website http://arcims.mathsciencecenter.info Then click on Virginia Physiography

7. 1998 Geology Summer Field School – Radford University

8. Courtesy of Virginia Division of Mineral Resources

10. Courtesy of USGS

11. THE COASTAL PLAIN A region of sedimentary strata consisting of sands, muds, and gravels Tidal waters occupy not only the Chesapeake Bay, but also lower portions of the James, York, Rappahannock and Potomac rivers Extends inland for more than 100 miles and is monotonously flat

16. Courtesy of Virginia Division of Mineral Resources

17. 1998 Geology Summer Field School – Radford University

18. Courtesy of Carroll Ellis, Physical Geology, 2003

21. 1998 Geology Summer Field School – Radford University

26. THE PIEDMONT Largest province extending from the Fall Line westward to the Blue Ridge Mountains Comprised of a complex of metamorphic and igneous rocks, overlain in a few places by Triassic-age sedimentary beds Important rocks and minerals include pegmatites, slate, kyanite, gold and pyrite

29. Courtesy of Virginia Division of Mineral Resources

30. 1998 Geology Summer Field School – Radford University

34. The Blue Ridge Mountain A long narrow, northeast-southwest trending mountain chain Consists of old Precambrian-age sedimentary and volcanic rocks Old Rag Granite is the oldest rock unit dated in Virginia at 1.2 billion years The two highest mountains in the state, Mt Rogers (elevation 5,719 ft.) and White Top (elevation 5,520 ft.) are both in the southern Blue Ridge

37. Courtesy of Virginia Division of Mineral Resources

38. http://www.goodearthgraphics.com

41. The Valley and Ridge Composed of folded and faulted 550 to 300 million-year-old sedimentary rocks Most ridges are held up by resistant sandstone, and most valleys are underlain by less resistant shale, limestone, and dolostone Karst features, such as caves and sinkholes are common throughout this province

43. Courtesy of Virginia Division of Mineral Resources

46. The Appalachian Plateau Contains deep narrow valleys and steep, rugged mountain sides caused by downcutting by streams Consists of 320 to 280 million-year-old sandstone and shale with coalbeds Most of the rock layers are relatively flat- lying Coal is Virginia’s most important mineral resource