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Northeastern Section–41st Annual Meeting (20–22 March 2006)

Session No. 13
Monday, 20 March 2006: 1:00 PM-4:00 PM

T13. Time Slices Across the Appalachians: Role of the Rheic Ocean in the Development of the Appalachian Orogen

 

R. Damian Nance and John Duncan Keppie, Advocates
Paper #
Start Time
 
1:00 PM
Introductory Remarks
1
1:05 PM
ORIGIN OF THE RHEIC OCEAN: RIFTING ALONG A NEOPROTEROZOIC SUTURE?
MURPHY, J. Brendan, Department of Earth Sciences, St. Francis Xavier University, Antigonish, NS B2G 2W5, GUTIERREZ-ALONSO, Gabriel, Departamento de Geologia, Universidad de Salamanca, Salamanca, 37008, Spain, NANCE, R. Damian, Geological Sciences, Ohio Univ, Athens, OH 45701, FERNANDEZ-SUAREZ, Javier, Departmento de Petrologia y Geoquimica, Universidad Complutense, Madrid, 28040, KEPPIE, J. Duncan, Instituto de Geología, Universidad Nacional Autónoma de México, México DF, 04510, QUESADA, Cecilio, Unidad de Coordinación de Programas, Instituto Geológico y Minero de España, Ríos Rosas 23, Madrid, 28003, Spain, STRACHAN, Rob A., School of Earth and Environmental Sciences, University of Portsmouth, Burnaby Road, Portsmouth, PO1 3QL and DOSTAL, Jarda, Earth Sciences, St. Mary's Univ, Halifax, NS B3H 3C3, Canada, bmurphy@stfx.ca, bmurphy@stfx.ca
2
1:25 PM
BIRTH OF THE RHEIC OCEAN, A 2-STAGE PROCESS ON THE SOUTHERN (MEXICAN) MARGIN
KEPPIE, John Duncan, Instituto de Geologia, Universidad Nacional Autonoma de Mexico, Ciudad Universitaria, Mexico, 04510, Mexico, NANCE, R. Damian, Geological Sciences, Ohio Univ, Athens, OH 45701, MURPHY, James Brendan, Department of Earth Sc iences, St. F.X. Univ, Antigonish, NS B2G 2W5, Canada, DOSTAL, Jarda, Earth Sciences, St. Mary's Univ, Halifax, NS B3H 3C3, Canada and MILLER, Brent V., Department of Geology and Geophysics, Texas A & M, College Station, TX 77843, duncan@servidor.unam.mx, duncan@servidor.unam.mx
3
1:45 PM
LOWER PALEOZOIC OF NORTHWEST GONDWANA—TERMINAL CAMBRIAN AND LOWEST ORDOVICIAN TIÑU FORMATION IN SOUTHERN MEXICO
LANDING, Ed, N.Y.S. Museum, Madison Avenue, Albany, NY 12230, KEPPIE, J. Duncan, Instituto de Geología, Universidad Nacional Autónoma de México, México DF, 04510 and WESTROP, Stephen R., Oklahoma Museum of Natural History and School of Geology & Geophysics, Univ of Oklahoma, Norman, OK 73072, elanding@mail.nysed.gov, elanding@mail.nysed.gov
4
2:05 PM
THE ACATLÁN COMPLEX, SOUTHERN MEXICO: RECORD OF THE ASSEMBLY, DURATION AND BREAKUP OF PANGEA
NANCE, R. Damian, Dept. of Geological Sciences, Ohio Univ, Athens, OH 45701, MILLER, Brent V., Department of Geology & Geophysics, Texas A&M Univ, College Station, TX 77843-3115, KEPPIE, J. Duncan, Instituto de Geología, Universidad Nacional Autónoma de México, México DF, 04510, MURPHY, J. Brendan, Department of Earth Sciences, St. Francis Xavier University, Antigonish, NS B2G 2W5 and DOSTAL, Jaroslav, Saint Mary's Univ, Department of Geology, Halifax, NS B3H 3C3, Canada, nance@ohiou.edu, nance@ohiou.edu
5
2:25 PM
ZIRCON RECYCLING FROM THE GONDWANAN MARGIN OF THE RHEIC OCEAN: THE ROLE OF MEGACRYSTIC GRANITOIDS OF THE ACATLÁN COMPLEX, SOUTHERN MEXICO
MILLER, Brent, Dept. of Geological Sciences, Univ of North Carolina, Chapel Hill, NC 27599-3315, NANCE, R. Damian, Dept. of Geological Sciences, Ohio Univ, Athens, OH 45701, MURPHY, J. Brendan, Department of Earth Sciences, St. Francis Xavier University, Antigonish, NS B2G 2W5, KEPPIE, J. Duncan, Instituto de Geología, Universidad Nacional Autónoma de México, México DF, 04510 and DOSTAL, Jarda, Earth Sciences, St. Mary's Univ, Halifax, NS B3H 3C3, Canada, bvmiller@email.unc.edu, bvmiller@email.unc.edu
 
2:45 PM
Break
6
3:00 PM
TECTONOMAGMATIC AND PALEOZOIC EVOLUTION OF PLUTONIC ROCKS IN THE NORTHERN ACATLÁN COMPLEX, LA NORIA AREA, SOUTHERN MEXICO
HINOJOSA-PRIETO, Hector R., Geological Sciences, Ohio University, 316 Clippinger Laboratories, Athens, OH 45701, NANCE, R. Damian, Geological Sciences, Ohio Univ, 316 Clippenger Laboratories, Athens, OH 45701, KEPPIE, J. Duncan, Instituto de Geología, Universidad Nacional Autónoma de México, México DF, 04510, DOSTAL, Jaroslav V., Department of Geology, St. Mary’s University, Halifax, NS B3H 3C3, Canada, MILLER, Brent V., Department of Geology and Geophysics, Texas A & M, College Station, TX 77843 and MURPHY, J. Brendan, Dept. of Earth Sciences, St. Francis Xavier University, Antigonish, NS B2G2W5, Canada, hh211504@ohio.edu, hh211504@ohio.edu
7
3:20 PM
STRUCTURAL ANALYSIS OF MORB PILLOW BASALTS AND CLASTIC ROCKS OF THE SOUTHWESTERN COSOLTEPEC FORMATION, ACATLÁN COMPLEX, SOUTHERN MEXICO: A REMNANT OF THE RHEIC OCEAN
GRODZICKI, Kathryn R., Dept. of Geological Sciences, Ohio University, 316 Clippinger Labs, Athens, OH 45701, NANCE, R. Damian, Dept. of Geological Sciences, Ohio Univ, Athens, OH 45701, KEPPIE, John Duncan, Instituto de Geologia, Universidad Nacional Autonoma de Mexico, Ciudad Universitaria, Mexico, 04510, Mexico, DOSTAL, Jaroslav, Saint Mary's Univ, Department of Geology, Halifax, NS B3H 3C3, Canada and MURPHY, J. Brendan, Dept. of Earth Sciences, St. Francis Xavier University, Antigonish, NS B2G2W5, Canada, kg229504@ohio.edu, kg229504@ohio.edu
8
3:40 PM
DEVONO-CARBONIFEROUS AND PERMIAN TECTONOTHERMAL EVENTS IN THE NORTHERN ACATLÁN COMPLEX, SOUTHERN MEXICO: A RECORD OF CLOSURE OF THE RHEIC OCEAN FOLLOWED BY CONVERGENCE ON THE PACIFIC MARGIN OF PANGEA
BARLEY, Brent, Geological Sciences, Ohio University, 316 Clippinger Laboratories Ohio University, Athens, OH 45701, KEPPIE, J. Duncan, Instituto de Geología, Universidad Nacional Autónoma de México, México DF, 04510 and NANCE, R. Damian, Geological Sciences, Ohio Univ, 316 Clippenger Laboratories, Athens, OH 45701, bb127000@ohio.edu, bb127000@ohio.edu
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