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From Rodinia to Pangea: The Lithotectonic Record of the Appalachian Region

GSA Memoirs

From Rodinia to Pangea: The Lithotectonic Record of the Appalachian Region

Author(s)

Geological Society of America

Volume

206

DOI:

https://doi.org/10.1130/MEM206

Copyright:

© 2010 Geological Society of America

Attribution: You must attribute the work in the manner specified by the author or licensor (but no in any way that suggests that they endorse you or your use of the work). Noncommercial - you may not use this work for commercial purpose. No Derivative works - You may not alter, transform, or build upon this work. Sharing - Individual scientists are hereby granted permission, without fees or further requests to GSA, to use a single figure, a single table, and/or a brief paragraph of text in other subsequent works and to make unlimited photocopies of items in this journal for noncommercial use in classrooms to further education and science.

ISBN print:

9780813712062

Publication date:

September 01, 2010

Book Chapter

Detrital zircon geochronology and provenance of southern Appalachian Blue Ridge and Inner Piedmont crystalline terranes

Author(s)

Arthur J. Merschat

Arthur J. Merschat

Department of Earth and Planetary Sciences and Science Alliance Center of Excellence, University of Tennessee, Knoxville, Tennessee 37996, USA

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Robert D. Hatcher, Jr.

Robert D. Hatcher, Jr.

Department of Earth and Planetary Sciences and Science Alliance Center of Excellence, University of Tennessee, Knoxville, Tennessee 37996, USA

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Brendan R. Bream

Brendan R. Bream

Department of Earth and Environmental Sciences, Vanderbilt University, Nashville, Tennessee 37235, USA

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Calvin F. Miller

Calvin F. Miller

Department of Earth and Environmental Sciences, Vanderbilt University, Nashville, Tennessee 37235, USA

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Heather E. Byars

Heather E. Byars

Department of Earth and Planetary Sciences and Science Alliance Center of Excellence, University of Tennessee, Knoxville, Tennessee 37996, USA

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Matthew P. Gatewood

Matthew P. Gatewood

Department of Earth and Planetary Sciences and Science Alliance Center of Excellence, University of Tennessee, Knoxville, Tennessee 37996, USA

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Joseph L. Wooden

Joseph L. Wooden

Department of Geological and Environmental Sciences, Stanford University, Stanford, California 94305, USA

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Doi:

https://doi.org/10.1130/2010.1206(26)

Published:

September 01, 2010

The southern Appalachian crystalline core is composed of lithotectonic assemblages that are largely sedimentary in origin. Sixteen paragneiss samples from the Blue Ridge and Inner Piedmont of North Carolina and Georgia, and one sample of Middle Ordovician rocks from the Sevier-Blountian clastic wedge in the Tennessee Valley and Ridge were sampled for sensitive high-resolution ion microprobe (SHRIMP) U-Pb detrital zircon geochronology, whole-rock geochemistry, and zircon trace-element analyses. Detrital zircon ages range from Archean (~2.7 Ga) to Middle Paleozoic (~430 Ma), with a notable abundance of Mesoproterozoic zircons (1.3–0.9 Ga). Many samples also contain moderate populations of slightly older Mesoproterozoic zircons...

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