Figures:
1- Wikimedia commons; USGS Appalachian zones in the United States: http://en.wikipedia.org/wiki/Appalachian_Mountains#Regions
2-Appalachian's cross-section; Central Pennsylvania Fold Belt; The Appalachians: http://www.fas.org/irp/imint/docs/rst/Sect6/Sect6_3.html
3- Northern Virginia Community College; An overview of Shenandoah National Park's geologic story, Part 6 – Uplift and Erosion: http://www.nvcc.edu/home/cbentley/shenandoah/
4- Wikimedia commons; Alleghenian Orogeny + Taconic Orogeny: http://en.wikipedia.org/wiki/Appalachian_orogeny
http://en.wikipedia.org/wiki/Taconic_orogeny
5- Encyclopedia Britannica; Davis's erosion cycle theory: http://www.britannica.com/EBchecked/topic/134929/continental-landform/49819/Daviss-erosion-cycle-theory-and-related-concepts
6- Encyclopedia Britannica; Aggradation/Pedimentation process: http://www.britannica.com/EBchecked/topic-art/289113/1254/Three-phase-block-diagram-of-pedimentation-of-an-upland-in
7- Northern Virginia Community College; Geology of Prince William Forest Park, Part 4 – Erosion of the Appalachian mountain range: http://www.nvcc.edu/home/cbentley/gol_135/prince_william/prwi.htm
8- Northern Virginia Community College; Geology of Prince William Forest Park, Part 6: Erosion of all rock units when local rivers incise due to sea level drop: http://www.nvcc.edu/home/cbentley/gol_135/prince_william/prwi.htm
9- Northern Virginia Community College; Geology of Prince William Forest Park, Part 6: Erosion of all rock units when local rivers incise due to sea level drop: http://www.nvcc.edu/home/cbentley/gol_135/prince_william/prwi.htm
10- Cal Poly Pomona (Geological Sciences); Regional Metamorphism: http://geology.csupomona.edu/alert/metamorphic/regional.htm
11- Aber, James S., Emporia State University; Appalachian Mountains – Structural Geology: http://academic.emporia.edu/aberjame/struc_geo/appalach/appalach.htm
12- Minerology Database; Arundel quarry, Baltimore, Baltimore Co., Maryland, USA: http://www.mindat.org/sitegallery.php?loc=28194
13- Urban Ecoist; India Looking for Coal in United States: http://www.urbanecoist.com/india-looking-for-coal-in-united-states/
14- Digital Library of Georgia; "Thar's Gold in Them Thar Hills" - Georgia Gold History: http://dlg.galileo.usg.edu/dahlonega/history.php
15- Bailey, C.M., College of William and Mary; Simplified Geologic Map of Virginia (1999): http://www.geobop.org/imagesGW/Pre/Maps/Geological/va.gif
West Virginia Geological and Economic Survey; Geologic Map of West Virginia (1969): http://www.wvgs.wvnet.edu/www/geology/geolgeom.htm
16- Government of Tennessee – Department of Environment and Conservation; Tennessee Division of Geology - Generalized Geologic Map of Tennessee: http://www.tennessee.gov/environment/tdg/smmap.shtml
About.com – Geology; Generalized Geologic Map of North Carolina (1991): http://geology.about.com/library/bl/maps/n_statemap_NC2000.htm
Clemson University, College of Engineering and Science; South Carolina Geology and Mineral Resources Map (1997): http://www.ces.clemson.edu/geolk12/Tools/Maps/GeologyMineralResources.html
17- SummitPost.org, Looking Glass Rock; Looking Glass Rock overview: http://www.summitpost.org/mountain/rock/152895/looking-glass-rock.html
18- Gadomski, Michael P., Radio Catskill (wwjf90.5fm); Making Waves Gallery - Summer Mt. Minsi Delaware Water Gap PA. Image #83390: http://wjffradio.org/gallery/MakingWaves/Summer_Mt_Minsi_Delaware_Water_Gap_PA_Image_83390
19- Wikimedia commons; Canyon passage in Mammoth Caves: http://en.wikipedia.org/wiki/File:Mammoth_cave_canyon.jpg
20- Good Earth Graphics; The Virtual Cave: Gypsum Flowers: http://www.goodearthgraphics.com/virtcave/flowers/gypsum.html
Text:
1- USGS Geology in the Parks; Geologic Provinces of the United States: Appalachian Highlands Province: http://geomaps.wr.usgs.gov/parks/province/appalach.html
2- Brigham Young University, Geological Sciences; Tectonics of the Appalachians: http://geologyindy.byu.edu/faculty/rah/tectonics/Student%20Presentations/2000%20Fall/appal/apptect.htm
3- Geological Society of America; Ebenezer Emmons (1799-1863) Father of the Taconic System:
http://gsa.confex.com/gsa/2005NE/finalprogram/abstract_82193.htm
4- Indiana University – Purdue University, Department of Earth Sciences; Appalachian Mountains – An Overview: http://www.geology.iupui.edu/Research/BioMineralLab/Ocoee/overview.html
5- Indiana University – Purdue University, Department of Earth Sciences; Appalachian Mountains – An Overview: http://www.geology.iupui.edu/Research/BioMineralLab/Ocoee/overview.html
6- C.Wylie Poag & William D. Sevo; A record of Appalachian denudation in postrift Mesozoic and Cenozoic sedimentary deposits of the U.S. Middle Atlantic continental margin: http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V93-48BCR4P-9&_user=10&_coverDate=09%2F30%2F1989&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_searchStrId=1279215129&_rerunOrigin=scholar.google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=b2666cdf7251f6dbc1369f102597e838
7- USGS Publications; Birth of the Mountains: Geologic Story of the Southern Appalachian Mountains: http://pubs.usgs.gov/gip/birth/birth.pdf
8- C.Wylie Poag & William D. Sevo; A record of Appalachian denudation in postrift Mesozoic and Cenozoic sedimentary deposits of the U.S. Middle Atlantic continental margin: http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V93-48BCR4P-9&_user=10&_coverDate=09%2F30%2F1989&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_searchStrId=1279215129&_rerunOrigin=scholar.google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=b2666cdf7251f6dbc1369f102597e838
9- Bratton, Lisa, Geomorphologist, U.S. Geological Survey, USGS MA-RI Water Science Center; Email correspondence (Jan 2010): lbratton@usgs.gov
10- USGS – A Tapestry of Time and Terrain; The Fall Line: http://tapestry.usgs.gov/features/14fallline.html
11- National Park Service; The Great Falls of the Potomac:http://www.nps.gov/archive/gwmp/grfa/falls/falls.htm
12- Cal Poly Pomona (Geological Sciences); Regional Metamorphism: http://geology.csupomona.edu/alert/metamorphic/regional.htm
13- Aber, James S., Emporia State University; Appalachian Mountains – Structural Geology: http://academic.emporia.edu/aberjame/struc_geo/appalach/appalach.htm
14- Young, Davis A.; Mind over Magma: The Story of Igneous Petrology (2003): http://www.amazon.com/Mind-over-Magma-Igneous-Petrology/dp/0691102791/ref=sr_1_1?ie=UTF8&qid=1270237057&sr=8-1
15- Whittow, John B.; The Penguin Dictionary of Physical Geography (2000): http://www.amazon.com/Penguin-Dictionary-Physical-Geography-Reference/dp/0140514503/ref=sr_1_2?ie=UTF8&s=books&qid=1270237283&sr=8-2
16- Whittow, John B.; The Penguin Dictionary of Physical Geography (2000): http://www.amazon.com/Penguin-Dictionary-Physical-Geography-Reference/dp/0140514503/ref=sr_1_2?ie=UTF8&s=books&qid=1270237283&sr=8-2
17- National Park Service; How the Gap formed, the geology of the Delaware Water Gap (2006): http://www.nps.gov/DEWA/planyourvisit/upload/sb2Geogap.pdf
18- US-Parks.com; Mammoth Cave National Park – Geology: http://www.us-parks.com/mammoth-cave-national-park/geology.html
19- GORP Outdoor Travel; Mammoth Cave National Park – Geology: http://www.gorp.com/parks-guide/travel-ta-mammoth-cave-national-park-culture-kentucky-sidwcmdev_067402.html
