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Northeastern Section (39th Annual) and Southeastern Section (53rd Annual) Joint Meeting (March 25–27, 2004)

Session No. 20
Thursday, 25 March 2004: 1:00 PM-5:00 PM

T4. Nature and Timing of Grenvillian Orogenesis in Eastern North America (pre-Cambrian) II

 

Richard P. Tollo and Louise Corriveau, Advocates
Paper #
Start Time
1
1:00 PM
PETROLOGY AND GEOCHRONOLOGY OF GRENVILLE-AGE MAGMATISM, BLUE RIDGE PROVINCE, NORTHERN VIRGINIA
TOLLO, Richard P., Department of Earth and Environmental Sciences, George Washington Univ, Washington, DC 20052, ALEINIKOFF, John N., U.S. Geol Survey, Denver, CO 80225 and BORDUAS, Elizabeth A., Earth and Environmental Sciences, GWU, Washington, DC, rtollo@gwu.edu, rtollo@gwu.edu
2
1:20 PM
A UNIFYING TECTONIC MODEL FOR THE BASEMENT CORE OF THE CENTRAL AND NORTHERN BLUE RIDGE OF VIRGINIA AND MARYLAND
BURTON, William C., U. S. Geological Survey, 425 Jordan Road, Troy, NY 12180 and SOUTHWORTH, C. Scott, U.S. Geol Survey, 926A National Center, Reston, VA 20192, bburton@usgs.gov, bburton@usgs.gov
3
1:40 PM
AUGITE-INVERTED FERROPIGEONITE THERMOMETRY IN "CHARNOCKITIC" ROCKS OF THE GRENVILLIAN BLUE RIDGE, CENTRAL VIRGINIA
LIOGYS, Viktoras A. and TRACY, Robert J., Department of Geosciences, Virginia Polytechnic Institute and State Univ, 4044 Derring Hall, Blacksburg, VA 24061, vliogys@vt.edu, vliogys@vt.edu
4
2:00 PM
DECIPHERING MESOPROTEROZOIC AND PALEOZOIC EVENTS PRESERVED IN THE ISOTOPIC COMPOSITIONS OF ZIRCON AND TITANITE: SEM IMAGING, SHRIMP U-PB GEOCHRONOLOGY, AND EMP ANALYSIS
ALEINIKOFF, John N., U.S. Geol Survey, MS 963, Denver, CO 80225, WINTSCH, Robert P., Department of Geological Sciences, Indiana Univ, 1001 East 10th Street, Bloomington, IN 47405, HORTON Jr, J. Wright, U.S. Geol Survey, MS 926A, Reston, VA 20192, DRAKE, Avery A., U.S. Geol Survey, MS 954, Reston, VA 20192 and FANNING, C. Mark, Research School of Earth Sciences, The Australian National Univ, Canberra, ACT, 0200, Australia, jaleinikoff@usgs.gov, jaleinikoff@usgs.gov
5
2:20 PM
NEW U-PB ZIRCON EVIDENCE FOR PALEOZOIC (DEVONIAN) PROTOLITHS FOR METAIGNEOUS PORTIONS OF THE MAIDENS GNEISS, GOOCHLAND TERRANE, VIRGINIA
OWENS, Brent E., Department of Geology, College of William and Mary, Williamsburg, VA 23187, PENG, Zhan X., Department of Earth and Planetary Sciences, Washington Univ, St. Louis, MO 63130, TUCKER, Robert D., Department of Earth and Planetary Sciences, Washington Univ, St Louis, MO 63130 and SHIRVELL, Catherine R., Department of Geology, College of William & Mary, Williamsburg, VA 23187, beowen@wm.edu, beowen@wm.edu
 
2:40 PM
Break
6
3:00 PM
PALEOZOIC (NOT MESOPROTEROZOIC) HIGH-GRADE METAMORPHISM IN THE GOOCHLAND TERRANE, VIRGINIA: NEW RESULTS FROM ELECTRON MICROPROBE DATING OF MONAZITE
SHIRVELL, Catherine R., Department of Geology, College of William & Mary, Williamsburg, VA 23187, TRACY, Robert J., Geological Sciences, Virginia Polytechnic Institute and State Univ, 4044 Derring Hall, Blacksburg, VA 24061 and OWENS, Brent E., Department of Geology, College of William and Mary, Williamsburg, VA 23187, crshir@wm.edu, crshir@wm.edu
7
3:20 PM
NORTHERN ANCESTRY FOR THE GOOCHLAND TERRANE AS A DISPLACED FRAGMENT OF LAURENTIA
BARTHOLOMEW, Mervin J., Department of Earth Sciences, Univ of Memphis, Memphis, TN 38152 and TOLLO, Richard P., Department of Earth & Environmental Sciences, George Washington Univ, Washington, DC 20052, jbrthlm1@memphis.edu, jbrthlm1@memphis.edu
8
3:40 PM
EVIDENCE FOR CONTINENT-CONTINENT COLLISION: STRUCTURAL ANALYSIS AND DETRITAL ZIRCON PROVENANCE IN THE WESTERN LLANO UPLIFT, CENTRAL TEXAS
LEVINE, Jamie S., Department of Geological Sciences, Univ of Texas at Austin, 1 University Station C-1100, Austin, TX 78712 and MOSHER, Sharon, Univ Texas - Austin, Dept Geological Sciences, Austin, TX 78712, levinejs@mail.utexas.edu, levinejs@mail.utexas.edu
9
4:00 PM
KINEMATIC CONSTRAINTS ON RODINIA ASSEMBLY: LLANO UPLIFT, TEXAS
REESE, Joseph F., Geosciences, Edinboro Univ of Pennsylvania, Cooper Hall, Edinboro, PA 16444 and MOSHER, Sharon, Univ Texas - Austin, Dept Geological Sciences, Austin, TX 78712, jreese@edinboro.edu, jreese@edinboro.edu
10
4:20 PM
THE ~1 GA OAXACAN COMPLEX OF SOUTHERN MEXICO: AN ARC TERRANE ON THE AMAZONIAN MARGIN
KEPPIE, J. Duncan, Instituto de Geología, Universidad Nacional Autónoma de México, Mexico D.F, 04510, Mexico, SOLARI, Luigi A., UNAM - Ciudad Univ, Deleg Coyoacan, Mexico City, DF 04510, Mexico, ORTEGA-GUTIÉRREZ, Fernando, Geología Regional, UNAM, Instituto de Geología, Ciudad Universitaria, Delegación Coyoacán, México, 04510, Mexico and DOSTAL, Jarda, Earth Sciences, St. Mary's Univ, Halifax, NS, Canada, duncan@servidor.unam.mx, duncan@servidor.unam.mx
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