4-D Framework of Continental Crust

Tectonic map of the southern and central Appalachians: A tale of three orogens and a complete Wilson cycle
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Published:January 01, 2007
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CiteCitation
Robert D. Hatcher, Jr., Brendan R. Bream, Arthur J. Merschat, 2007. "Tectonic map of the southern and central Appalachians: A tale of three orogens and a complete Wilson cycle", 4-D Framework of Continental Crust, Robert D. Hatcher, Jr., Marvin P. Carlson, John H. McBride, José R. Martínez Catalán
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A new tectonic map of the southern and central Appalachians incorporates modern field and structural-stratigraphic, geochronologic (mostly sensitive high-resolution ion microprobe–reverse geometry, SHRIMP–RG, and Sm-Nd), geochemical, and geophysical data to identify crustal boundaries and blocks. Major tectonic units include the ∼735 Ma Laurentian failed rift, ∼565 Ma rifted margin sedimentary-volcanic assemblage deposited on Grenvillian and pre-Grenvillian crust, the Laurentian platform, and a series of distal Laurentian terranes (Cowrock, Cartoogechaye, Tugaloo-Chopawamsic-Potomac) accreted to Laurentia during the Taconian (Ordovician) or Neoacadian (Late Devonian–early Mississippian) orogenies. The Dahlonega gold belt consists of more proximal metasandstone and pelitic schist; it also contains Ordovician arc...
- absolute age
- airborne methods
- Alabama
- Alleghany Orogeny
- Appalachians
- basement
- Blue Ridge Province
- boundary faults
- Brevard Zone
- Cambrian
- Central Appalachians
- continental drift
- dates
- deformation
- fault zones
- faults
- geophysical methods
- geophysical surveys
- Georgia
- gold ores
- Gondwana
- Grenvillian Orogeny
- Hayesville Fault
- Iapetus
- intrusions
- ion probe data
- Laurentia
- magnetic anomalies
- magnetic methods
- mapping
- mass spectra
- metal ores
- metamorphic rocks
- metamorphism
- metasedimentary rocks
- Neoproterozoic
- nesosilicates
- North America
- North Carolina
- orogenic belts
- orogeny
- orthosilicates
- paleogeography
- Paleozoic
- Pangaea
- Penokean Orogeny
- Piedmont
- Pine Mountain Window
- plate tectonics
- plutons
- Precambrian
- Proterozoic
- rifting
- Rodinia
- SHRIMP data
- silicates
- Sm/Nd
- South Carolina
- Southern Appalachians
- spectra
- surveys
- suture zones
- systems
- tectonics
- terranes
- U/Pb
- United States
- upper Precambrian
- Wilson cycle
- Yucatan Peninsula
- zircon
- zircon group
- Dahlonega gold belt
- Soque River Fault
- Carolina Superterrane
- Wiggins suture zone