T39. Weathering of Mineral Deposits in Semi-Tropical and Tropical Climates

Session No. 139
Tuesday, 6 November 2012: 8:00 AM-12:00 PM
211AB (Charlotte Convention Center)

T39. Weathering of Mineral Deposits in Semi-Tropical and Tropical Climates

Society of Economic Geologists

 

James A. Saunders, Dennis LaPoint and J. Richard Kyle, Advocates
Paper #
Start Time
 
8:00 AM
Introductory Remarks
1
8:05 AM
FORMATION OF SUPERGENE FERRUGINOUS PISOLITIC (‘LATERITE') GOLD DEPOSITS IN WESTERN AUSTRALIA: NEW INSIGHTS INTO MECHANISMS OF ANOMALY FORMATION
ANAND, Ravi R.1, HOUGH, Rob M.1, VERRALL, Michael.1, BALKAU, Jens2 and LAIRD, Jamie S.3, (1)Earth Science and Resource Engineering, CSIRO, 26 Dick Perry Avenue, Kensington Western Australia, Perth, 6151, Australia, (2)Regis Resources Ltd, First Floor 1 Alvan street, Subiaco western Australia, Perth, 6009, Australia, (3)Earth Science and Resource Engineering, CSIRO, School of Physics University of Melbourne, Parkville, Victoria, Melbourne, 3010, Australia, ravi.anand@csiro.au, ravi.anand@csiro.au
2
8:25 AM
Withdrawn
3
8:45 AM
GOLD EXPLORATION METHODS IN DEEPLY WEATHERED ENVIRONMENTS: A COMPARISON OF SOUTHEASTERN US AND SURINAME
LAPOINT, Dennis, Appalachian Resources LLC, P.O. Box 3810, Chapel Hill, NC 27515, dlapoint@mindspring.com, dlapoint@mindspring.com
 
9:05 AM
Discussion
4
9:10 AM
FORMATION OF ALLUVIAL GOLD NUGGETS BY BIOCHEMICAL WEATHERING IN THE SOUTHERN APPALACHIAN PIEDMONT
SAUNDERS, James A., Department of Geosciences, Auburn University, 210 Petrie Hall, Auburn, AL 36849 and CARPENTER, Robert H., Consultant, 749 Fairview Lane, Topton, NC 28781, saundja@auburn.edu, saundja@auburn.edu
5
9:25 AM
INSIGHTS FROM PB ISOTOPES FOR THE ORIGIN OF PLACER GOLD IN RICH HILL, ARIZONA
KAMENOV, George D., Department of Geological Sciences, Univ of Florida, Gainesville, FL 32611, MELCHIORRE, Erik, Geology Department, California State University, 5500 University Parkway, San Bernardino, CA 92407, RICKER, Faye, Department of Geology, University of Florida, Gainesville, FL 32611 and DEWITT, Ed, Central Mineral Resources Team, US Geological Survey, MS 973, Denver Federal Center, Lakewood, CO 80225, kamenov@ufl.edu, kamenov@ufl.edu
 
9:40 AM
Break
6
9:55 AM
BAUXITE FORMATION ON PROTEROZOIC BEDROCK OF THE GUIANA SHIELD IN SURINAME
MONSELS, Dewany, Geology and Mining, Anton de Kom University of Suriname, Paramaribo, Suriname and VAN BERGEN, Manfred, Earth Sciences, Utrecht University, Utrecht, 3584CD, Netherlands, dewany.monsels@uvs.edu, dewany.monsels@uvs.edu
 
10:10 AM
Discussion
7
10:15 AM
SUPERGENE RARE EARTH ELEMENT DEPOSITS AND THEIR POTENTIAL IN LATERITES OF THE SOUTHEASTERN U.S
COCKER, Mark D., U.S. Geological Survey, 520 N. Park Ave., Ste. 355, Tucson, AZ 85719, mcocker@usgs.gov, mcocker@usgs.gov
 
10:30 AM
Discussion
8
10:35 AM
BIOLOGICAL FORMATION OF SUPERGENE MANGANESE OXIDE DEPOSITS IN EAST TENNESSEE
WILSON, Crystal G., CARMICHAEL, Sarah K., RASH, Michael R. and FEIERSTEIN, Joshua R., Geology, Appalachian State University, 572 Rivers St, Boone, NC 28608, wilsoncg@appstate.edu, wilsoncg@appstate.edu
9
10:50 AM
PLIOCENE SUPERGENE WEATHERING AND EXHUMATION HISTORY OF THE RED HILLS PORPHYRY CU-MO SYSTEM AND THE TECTONIC HISTORY OF THE PRESIDIO BOLSON, TRANS-PECOS TEXAS
KYLE, J. Richard, Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, TX 78712, GILMER, Amy K., Division of Geology and Mineral Resources, Virginia Department of Mines, Minerals and Energy, 900 Natural Resources Drive, Suite 500, Charlottesville, VA 22903 and VASCONCELOS, Paulo M., Department of Earth Sciences, The University of Queensland, Brisbane, 4072, Australia, rkyle@jsg.utexas.edu, rkyle@jsg.utexas.edu
10
11:05 AM
ECONOMIC IMPLICATIONS OF SILICA REMOBILIZATION IN THE BIWABIK IRON FORMATION, MINNESOTA
RAGUE, Ryan and LOSH, Steven, Dept. of Chemistry and Geology, Minnesota State University, Mankato, MN 56001, ryan.rague@mnsu.edu, ryan.rague@mnsu.edu
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