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

 
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
 
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
 
COPPER ISOTOPE CHARACTERISTICS OF COPPER-RICH MINERALS IN SEAFLOOR HYDROTHERMAL DEPOSITS AND IGNEOUS ROCKS, ANALYZED USING A FEMTOSECOND LA-MC-ICP-MS
IKEHATA, Kei1, ISHIBASHI, Junichiro2, SUZUKI, Ryohei2, and HIRATA, Takafumi3, (1) Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8572, Japan, ikkei@geol.tsukuba.ac.jp, (2) Department of Earth and Planetary Sciences, Faculty of Sciences, Kyushu University, Fukuoka, 812-8581, Japan, (3) Division of Earth and Planetary Sciences, Graduate School of Science, Kyoto University, Kyoto, 606-8502, Japan
 
WEATHERING AND ITS INFLUENCE ON REGOLITH MAPPING IN MINERAL EXPLORATION: A CASE STUDY ON THE MANSO AMENFI GOLD PROJECT IN THE WESTERN REGION OF GHANA
ADU-GYAMFI, Patrick, GoldStone Resources Ltd, University of Mines and Technology, Tarkwa, WR, Ghana, Patrick@goldstoneresources.com, EWUSI, Anthony, University of Mines and Technology, Tarkwa, WR, Ghana, and YEBOAH-FORSON, Albert, Florida International University, Miami, FL 33199
 
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, kamenov@ufl.edu, 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
 
BAUXITE FORMATION ON PROTEROZOIC BEDROCK OF THE GUIANA SHIELD IN SURINAME
MONSELS, Dewany, Geology and Mining, Anton de Kom University of Suriname, Paramaribo, Suriname, dewany.monsels@uvs.edu and VAN BERGEN, Manfred, Earth Sciences, Utrecht University, Utrecht, 3584CD, Netherlands
 
FORMATION OF ALLUVIAL GOLD NUGGETS BY BIOCHEMICAL WEATEHRING IN THE SOUTHERN APLALACHIAN PIEDMONT
SAUNDERS, James A., Department of Geology and Geography, Auburn University, 210 Petrie Hall, Auburn, AL 36849, saundja@auburn.edu and CARPENTER, Robert H., Consultant, 749 Fairview Lane, Topton, NC 28781
 
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, The University of Texas at Austin, 1 University Station, C1100, Austin, TX 78712, rkyle@mail.utexas.edu, 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
 
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
 
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, ravi.anand@csiro.au, (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
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