Parks and Plates ©2005 Robert J. Lillie ANCIENT COLLISIONAL MOUNTAIN RANGE.

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Presentation transcript:

Parks and Plates ©2005 Robert J. Lillie ANCIENT COLLISIONAL MOUNTAIN RANGE

Parks and Plates ©2005 Robert J. Lillie ANCIENT COLLISIONAL MOUNTAIN RANGE

Parks and Plates ©2005 Robert J. Lillie ANCIENT COLLISIONAL MOUNTAIN RANGE

Parks and Plates ©2005 Robert J. Lillie ANCIENT COLLISIONAL MOUNTAIN RANGE Foreland Basin Mississippi River

Parks and Plates ©2005 Robert J. Lillie ANCIENT COLLISIONAL MOUNTAIN RANGE

Soft vs. Hard Collisions Parks and Plates ©2005 Robert J. Lillie

Soft vs. Hard Collisions Parks and Plates ©2005 Robert J. Lillie DCM Sediments

Soft vs. Hard Collisions Parks and Plates ©2005 Robert J. Lillie Accretionary Wedge

Soft vs. Hard Collisions Parks and Plates ©2005 Robert J. Lillie

Soft vs. Hard Collisions Parks and Plates ©2005 Robert J. Lillie

Soft vs. Hard Collisions Parks and Plates ©2005 Robert J. Lillie

Soft vs. Hard Collisions Parks and Plates ©2005 Robert J. Lillie

Ouachita Mountains, Arkansas Soft Collision Parks and Plates ©2005 Robert J. Lillie

Robert J. Lillie Alps, Switzerland Hard Collision Parks and Plates ©2005 Robert J. Lillie

Robert J. Lillie Parks and Plates ©2005 Robert J. Lillie

Parks and Plates ©2005 Robert J. Lillie

Parks and Plates ©2005 Robert J. Lillie

Parks and Plates ©2005 Robert J. Lillie

Himalayas, India/Tibet Very High Mountains During Collision Parks and Plates ©2005 Robert J. Lillie

Brooks Range Parks and Plates ©2005 Robert J. Lillie Gates of the Arctic National Park and Preserve, Alaska Moderate Height after some Erosion and Rebound

Appalachian Mountains Parks and Plates ©2005 Robert J. Lillie Blue Ridge Parkway, North Carolina Lower Mountains after Extensive Erosion High-Grade Metamorphic Rocks

Robert J. Lillie Parks and Plates ©2005 Robert J. Lillie

Parks and Plates ©2005 Robert J. Lillie TECTONIC DEVELOPMENT OF APPALACHIAN MOUNTAINS

Iapetus Ocean Opens Parks and Plates ©2005 Robert J. Lillie TECTONIC DEVELOPMENT OF APPALACHIAN MOUNTAINS

Iapetus Ocean Closes Parks and Plates ©2005 Robert J. Lillie TECTONIC DEVELOPMENT OF APPALACHIAN MOUNTAINS

Atlantic Ocean and Gulf of Mexico Ocean Parks and Plates ©2005 Robert J. Lillie TECTONIC DEVELOPMENT OF APPALACHIAN MOUNTAINS

Tectonic Evolution of Southern Appalachian Mountains Pannotia Rifts Apart Parks and Plates ©2005 Robert J. Lillie North America Gondwanaland

Iapetus Ocean Opens Parks and Plates ©2005 Robert J. Lillie Tectonic Evolution of Southern Appalachian Mountains

Iapetus Ocean Closes During Subduction Parks and Plates ©2005 Robert J. Lillie Tectonic Evolution of Southern Appalachian Mountains

Continents Collide, Forming Pangea Parks and Plates ©2005 Robert J. Lillie Tectonic Evolution of Southern Appalachian Mountains

Atlantic Ocean Opens Note Tectonic Provinces of Southern Appalachians Parks and Plates ©2005 Robert J. Lillie Tectonic Evolution of Southern Appalachian Mountains

Parks and Plates ©2005 Robert J. Lillie ANCIENT COLLISIONAL MOUNTAIN RANGE

Parks and Plates ©2005 Robert J. Lillie ANCIENT COLLISIONAL MOUNTAIN RANGE Line of Tectonic Cross Section What do the Appalachians look like below the surface?

Marshak, EARTH (Norton, 2005) Southern Appalachian Mountains Parks and Plates ©2005 Robert J. Lillie

Marshak, EARTH (Norton, 2005) Southern Appalachian Mountains Parks and Plates ©2005 Robert J. Lillie

The VALLEY AND RIDGE PROVINCE is a fold and thrust belt. Parks and Plates ©2005 Robert J. Lillie

The VALLEY AND RIDGE PROVINCE is a fold and thrust belt. Compression folds the sedimentary layers, like pushing on a rug. Parks and Plates ©2005 Robert J. Lillie

The VALLEY AND RIDGE PROVINCE is a fold and thrust belt. Compression also breaks and shoves the rock layers along thrust faults. Parks and Plates ©2005 Robert J. Lillie

The VALLEY AND RIDGE PROVINCE is a fold and thrust belt. The region has numerous folds and thrust faults. Parks and Plates ©2005 Robert J. Lillie

Layers also tilt (plunge), eroding to V-shaped patterns. The VALLEY AND RIDGE PROVINCE is a fold and thrust belt. Parks and Plates ©2005 Robert J. Lillie

NASA Parks and Plates ©2005 Robert J. Lillie Satellite photos reveal numerous plunging anticlines and synclines. The VALLEY AND RIDGE PROVINCE is a fold and thrust belt.

NASA Valley and Ridge Province, Pennsylvania Parks and Plates ©2005 Robert J. Lillie Plunging Anticlines and Synclines

Marshak, EARTH (Norton, 2005) Parks and Plates ©2005 Robert J. Lillie The Valley and Ridge Province is a classic FOLD AND THRUST BELT

Marshak, EARTH (Norton, 2005) Parks and Plates ©2005 Robert J. Lillie The Valley and Ridge Province is a classic FOLD AND THRUST BELT FoldsThrust Faults

Marshak, EARTH (Norton, 2005) Southern Appalachian Mountains Parks and Plates ©2005 Robert J. Lillie

Marshak, EARTH (Norton, 2005) Southern Appalachian Mountains Parks and Plates ©2005 Robert J. Lillie

Marshak, EARTH (Norton, 2005) Southern Appalachian Mountains Parks and Plates ©2005 Robert J. Lillie

Marshak, EARTH (Norton, 2005) Southern Appalachian Mountains Parks and Plates ©2005 Robert J. Lillie

Marshak, EARTH (Norton, 2005) Southern Appalachian Mountains Parks and Plates ©2005 Robert J. Lillie

Marshak, EARTH (Norton, 2005) Southern Appalachian Mountains Parks and Plates ©2005 Robert J. Lillie

Parks and Plates ©2005 Robert J. Lillie The Appalachian/Ouachita/Marathon collisional mountain range lies along the ANCIENT CONTINENTAL MARGIN of North America

WEBSITES National Park Service: Park Geology Tour: www2.nature.nps.gov/grd/tour/index.htm Appalachian/Ouachita/Marathon Acadia NP: www2.nature.nps.gov/grd/parks/acad/index.htm 16. Big South Fork NR: www2.nature.nps.gov/grd/parks/biso/index.htm 17. Blue Ridge Parkway: www2.nature.nps.gov/grd/parks/blri/index.htm 18. Bluestone NSR&RA: www2.nature.nps.gov/grd/parks/neri/index.htm 19. Chattahoochee River NRA: Delaware Water Gap NRA: www2.nature.nps.gov/grd/parks/dewa/index.htm 21. Gauley River NRA: www2.nature.nps.gov/grd/parks/neri/index.htm 22. Great Smoky Mountains NP: www2.nature.nps.gov/grd/parks/grsm/index.htm 23. Obed WSR: Russell Cave NM: www2.nature.nps.gov/grd/parks/ruca/index.htm 25. Shenandoah NP: www2.nature.nps.gov/grd/parks/shen/index.htm 26. Hot Springs NP: www2.nature.nps.gov/grd/parks/hosp/index.htm 27. Big Bend NP: www2.nature.nps.gov/grd/parks/bibe/index.htm 28. Rio Grande WSR: Brooks Range Cape Krusenstern NP: www2.nature.nps.gov/grd/parks/noaa/index.htm 30. Gates of the Arctic NP: www2.nature.nps.gov/grd/parks/gaar/index.htm 31. Kobuk Valley NP: www2.nature.nps.gov/grd/parks/noaa/index.htm 32. Noatak NP: www2.nature.nps.gov/grd/parks/noaa/index.htm U. S. Geological Survey: Geology in the Parks: www2.nature.nps.gov/grd/usgsnps/project/home.htmlwww.nps.govwww2.nature.nps.gov/grd/tour/index.htmwww2.nature.nps.gov/grd/parks/acad/index.htmwww2.nature.nps.gov/grd/parks/biso/index.htmwww2.nature.nps.gov/grd/parks/blri/index.htmwww2.nature.nps.gov/grd/parks/neri/index.htmwww.nps.gov/chat/index.htmwww2.nature.nps.gov/grd/parks/dewa/index.htmwww2.nature.nps.gov/grd/parks/neri/index.htm www2.nature.nps.gov/grd/parks/grsm/index.htmwww.nps.gov/obed/index.htmwww2.nature.nps.gov/grd/parks/ruca/index.htmwww2.nature.nps.gov/grd/parks/shen/index.htmwww2.nature.nps.gov/grd/parks/hosp/index.htmwww2.nature.nps.gov/grd/parks/bibe/index.htmwww.nps.gov/rigr/index.htmwww2.nature.nps.gov/grd/parks/noaa/index.htmwww2.nature.nps.gov/grd/parks/gaar/index.htmwww2.nature.nps.gov/grd/parks/noaa/index.htm Parks and Plates ©2005 Robert J. Lillie