Geological Society of America

1:45 PM

TOPOGRAPHY, EROSION, AND GEOCHEMICAL PROPERTIES OF TROPICAL SOILS, OSA PENINSULA, COSTA RICA

Carleton R. Bern, Institute for Arctic and Alpine Research, Boulder, CO and Alan R. Townsend, Institute for Arctic and Alpine Rsch, Boulder, CO and G. Lang Farmer, Univ Colorado - Boulder, Boulder, CO

80152 (Technical Sessions)

2:00 PM

PRESENT DAY CHEMICAL WEATHERING IN THE LARGE RIVERS OF THE TIBETAN PLATEAU AND ADJACENT AREAS

Youngsook Huh, Seoul National University, Seoul, N/A

78653 (Technical Sessions)

2:15 PM

GEOCHEMISTRY AND WEATHERING FLUXES OF THE YANGTZE HEADWATERS IN CHINA

Andre Ellis, Northwestern Univ, Evanston, IL and Youngsook Huh, Northwestern Univ, Evanston, IL

77996 (Technical Sessions)

3:00 PM

CARBONATE WEATHERING AND DIC FLUXES IN CARBONATE-BEARING LANDSCAPES, MICHIGAN AND SLOVENIA

Kathryn Szramek, Univ of Michigan, Ann Arbor, MI and Erika Williams, Univ of Michigan, Ann Arbor, MI and Jennifer McIntosh, Univ of Michigan, Ann Arbor, MI and Tjasa Kanduc, Jozef Stefan Institute, Ljubljana, N/A and Nives Ogrinc, Jozef Stefan Institute, Ljubljana, N/A and Lynn M. Walter, Univ of Michigan, Ann Arbor, MI

80657 (Technical Sessions)

3:30 PM

ARCTIC STREAM GEOCHEMISTRY AS A MONITOR OF RECENT PERMAFROST DEGRADATION

Katy Keller, Univ of Michigan, Ann Arbor, MI and George W. Kling, Univ of Michigan, Ann Arbor, MI and Joel D. Blum, Univ of Michigan, Ann Arbor, MI

77422 (Technical Sessions)

3:45 PM

SURFACE WATER DISSOLVED LOADS AND SOIL CHEMICAL WEATHERING RATES: RESULTS FROM THE SANTA CRUZ TERRACES

Daniel J. Bain, U. S. Geologic Survey, Menlo Park, CA and Suzanne P. Anderson, Univ of Colorado at Boulder, Boulder, CO and Thomas D. Bullen, U. S. Geologic Survey, Menlo Park, CA and John Fitzpatrick, U. S. Geologic Survey, Menlo Park, CA and Marjorie S. Schulz, U. S. Geologic Survey, Menlo Park, CA and Davison V. Vivit, U. S. Geologic Survey, Menlo Park, CA and Arthur F. White, U. S. Geologic Survey, Menlo Park, CA

77786 (Technical Sessions)

4:00 PM

CONTROLS ON CARBONATE AND SILICATE WEATHERING FLUXES IN TWO FORESTED WATERSHEDS, NORTHERN MICHIGAN

Erika L. Williams, Univ. of Michigan, Ann Arbor, MI and Lynn M. Walter, Univ. of Michigan, Ann Arbor, MI

74064 (Technical Sessions)

4:15 PM

SILICATE AND CARBONATE MINERAL WEATHERING CONTRIBUTIONS TO SOIL WATERS: A GEOCHEMICAL CASE STUDY FROM SOIL PROFILES DEVELOPED ON CARBONATE-BEARING GLACIAL DRIFT (SOUTHERN MICHIGAN)

Lixin Jin, Univ of Michigan, Ann Arbor, MI and Stephen K. Hamilton, Michigan State Univ, Hickory Corners, MI and Lynn M. Walter, Univ. of Michigan, Ann Arbor, MI

79624 (Technical Sessions)

4:30 PM

HYDROGEOCHEMICAL CONSTRAINTS ON PLEISTOCENE GLACIAL MELTWATER INVASION INTO MIDCONTINENT, U.S. REGIONAL AQUIFER SYSTEMS: IMPACT ON SALINITY STRUCTURE AND GENERATION OF MICROBIAL GAS

Jennifer C. McIntosh, Univ of Michigan, Ann Arbor, MI and Lynn M. Walter, Univ of Michigan, Ann Arbor, MI

80835 (Technical Sessions)

4:45 PM

INFLUENCE OF HYDROLOGIC CONDITIONS ON HISTORICAL WATER QUALITY IN A STREAM AFFECTED BY NATURAL AND MINING-RELATED SOURCES, 1965-2001

A.S. Maest, U.S. Geol Survey, Boulder, CO and D. Kirk Nordstrom, U.S. Geol Survey, Boulder, CO and S.H. LoVetere, U.S. Geol Survey, Boulder, CO

80949 (Technical Sessions)

5:00 PM

BENCH AND PILOT SCALE TEST RESULTS PASSIVE TREATMENT OF ACID MINE DRAINAGE (AMD) AT THE FRAN COAL MINE, PA

James J. Gusek, Golder Associates Inc, Lakewood, CO