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Smith River Allochthon; a Southern Appalachian peri-Gondwanan terrane emplaced directly on Laurentia?

James P. Hibbard, Robert J. Tracy and William S. Henika
Smith River Allochthon; a Southern Appalachian peri-Gondwanan terrane emplaced directly on Laurentia?
Geology (Boulder) (March 2003) 31 (3): 215-218

Abstract

The Smith River allochthon is in a southern Appalachian belt of metaclastic rocks that has traditionally been considered to be of peri-Laurentian origin. New Th-U-Pb monazite ages confirm that the allochthon was involved in an Early Cambrian tectonothermal event, indicate that it was exotic with respect to adjacent Laurentian rocks, and indicate that it is likely of Gondwanan origin. The allochthon may form a new link between the Appalachians and the Pampean terrane of western South America; in addition, its position in the orogen has implications for recent models of the opening of the Iapetus.


ISSN: 0091-7613
EISSN: 1943-2682
Coden: GLGYBA
Serial Title: Geology (Boulder)
Serial Volume: 31
Serial Issue: 3
Title: Smith River Allochthon; a Southern Appalachian peri-Gondwanan terrane emplaced directly on Laurentia?
Affiliation: North Carolina State University, Department of Marine, Earth and Atmospheric Sciences, Raleigh, NC, United States
Pages: 215-218
Published: 200303
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
References: 32
Accession Number: 2003-025972
Categories: Structural geologyGeochronology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. geol. sketch maps
N36°34'60" - N37°15'00", W80°19'60" - W79°15'00"
Secondary Affiliation: Virginia Polytechnic Institute and State University, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States
Update Code: 200309
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