Session: Geochemistry, Aqueous I: Low Temperature Processes and Mechanisms (2003 Seattle Annual Meeting (November 2

Paper #

Start Time

1

1:00 PM

ADSORPTION OF GADOLINIUM ON THE SURFACE OF GOETHITE IN THE SYSTEM NACL-H₂O-AR-CO₂ AT 25°C

REDKIN, Alexander F.¹, WOOD, Scott A.¹, REDDEN, George² and HULL, Larry C.², (1)Geological Sciences, University of Idaho, P.O. Box 443022, Moscow, ID 83844-3022, (2)Idaho National Engineering and Environmental Lab, P.O. Box 1625, MS 2208, Idaho Falls, ID 83415, aredkin@uidaho.edu, aredkin@uidaho.edu

2

1:15 PM

INVESTIGATING PB(II) SORPTION PRODUCTS AT THE CALCITE-WATER INTERFACE: XAFS EVIDENCE FOR ADSORPTION AND PRECIPITATION

ROUFF, Ashaki A.¹, ELZINGA, Evert J.², REEDER, Richard J.¹ and FISHER, Nicholas S.³, (1)Geosciences, State Univ of New York at Stony Brook, ESS Building, Stony Brook, NY 11777, (2)Geosciences, State Univ of New York at Stony Brook, ESS Building, Stony Brook, NY 11794, (3)Marine Sciences Research Center, State Univ of New York at Stony Brook, 129 Dana Hall, Stony Brook, NY 11794, arouff@ic.sunysb.edu, arouff@ic.sunysb.edu

3

1:30 PM

REVISED THERMODYNAMIC PROPERTIES OF BRUCITE DETERMINED BY SOLUBILITY STUDIES AND ITS SIGNIFICANCE TO NUCLEAR WASTE ISOLATION

XIONG, Yongliang, Sandia National Laboratories (SNL), Carlsbad Programs Group, 4100 National Parks Highway, Carlsbad, NM 88220, yxiong@sandia.gov, yxiong@sandia.gov

4

1:45 PM

THE KINETICS OF CALCITE DISSOLUTION IN NACL-CACL₂-MGCL₂ BRINES AT 1 BAR PCO₂ AND 25 °C

GLEDHILL, Dwight K, Dept. of Oceanography, Texas A&M Univ, College Station, TX 77843-3146 and MORSE, John W., Texas A&M Univ - College Station, MS 3146, College Station, TX 77843-3146, dgledhill@ocean.tamu.edu, dgledhill@ocean.tamu.edu

5

2:00 PM

CONTROLS OF BURGERS VECTORS ON ETCH PIT FORMATION: AN EXAMPLE ON CALCITE SURFACES

FAN, Chunfang, Earth and Environmental Sciences, The George Washington Univ, 2029 G St. NW Rm101, Washington D.C, DC 20006 and TENG, Henry, Earth and Environmental Sciences, George Washington Univ, 2029 G St NW, Washington, DC 20006, cffan@gwu.edu, cffan@gwu.edu

6

2:15 PM

CONTROL OF SOLVATION ENTROPY ON THE ELECTROSTATIC ADSORPTION OF CATIONS ONTO SILICA

CRAVEN, Colin M., SLR Corporation, 3522 International Street, Fairbanks, AK 99701 and DOVE, Patricia M., Department of Geosciences, Virginia Tech, 4044 Derring Hall, Blacksburg, VA 24061, ccraven@slrcorp.com, ccraven@slrcorp.com

7

2:30 PM

DECIPHERING MG PARTITIONING INTO CALCITE: A NEW STUDY OF MACROSCALE BEHAVIOR THROUGH DIRECT MEASUREMENT OF NANOSCALE CONTROLS

WASYLENKI, Laura E.¹, DOVE, Patricia M.¹ and DE YOREO, James J.², (1)Department of Geosciences, Virginia Polytechnic Institute, 4044 Derring Hall, Blacksburg, VA 24061, (2)Department of Chemistry and Materials Science, Lawrence Livermore National Lab, Livermore, CA 94550, lew@vt.edu, lew@vt.edu

8

2:45 PM

NANOSCALE EFFECTS OF STRONTIUM ON CALCITE GROWTH: A BASELINE FOR UNDERSTANDING BIOMINERALIZATION IN THE ABSENCE OF VITAL EFFECTS

WILSON, Darren S.¹, WASYLENKI, Laura E.¹, DOVE, Patricia M.¹ and DE YOREO, James J.², (1)Department of Geosciences, Virginia Polytechnic Institute, 4044 Derring Hall, Blacksburg, VA 24061, (2)Department of Chemistry and Materials Science, Lawrence Livermore National Lab, Livermore, CA 94550, dove@vt.edu, dove@vt.edu

9

3:00 PM

EFFECT OF CHEMISTRY ON CALCITE LATTICE SPACING: IMPLICATIONS FOR FLUORESCENCE AND ORE GENESIS

BUIS, Patricia Frances, Biological and Physical Science Department, Lander Univ, 320 Stanley Avenue, Greenwood, SC 29649, pbuis2001@aol.com, pbuis2001@aol.com

10

3:15 PM

THE WEATHERING OF SILICATE MINERALS IN THE GLACIATED MID-CONTINENT U.S.: RESULTS FROM NATURAL AND EXPERIMENTAL FIELD STUDIES

WILLIAMS, Erika L.¹, WALTER, Lynn M.¹, KU, Timothy C.W.², BUDAI, Joyce M.³ and KLING, George W.⁴, (1)Dept. of Geological Sciences, Univ of Michigan, 2534 C.C. Little Bldg, Ann Arbor, MI 48109-1063, (2)Earth and Environmental Sciences Dept, Wesleyan Univ, 265 Church St, Middletown, CT 06459, (3)Great Lakes Colleges Association, 535 West William, Suite 301, Ann Arbor, MI 48103, (4)Dept. of Ecology and Evolutionary Biology, Univ of Michigan, 830 N. University, Ann Arbor, MI 48109-1048, erikalw@umich.edu, erikalw@umich.edu

11

3:30 PM

IDENTIFYING AUTHIGENIC CLAY FORMATION IN NEARSHORE TROPICAL SEDIMENTS: A NEW APPROACH USING LITHIUM ISOTOPES

KU, Timothy C.W.¹, BLUM, Joel D.² and KLAUE, Bjoern², (1)Earth & Environmental Sciences, Wesleyan Univ, 265 Church Street, 455 Science Tower, Middletown, CT 06459, (2)Department of Geological Sciences, Univ of Michigan, 2534 C.C. Little Building, Ann Arbor, MI 48109-1063, tcku@wesleyan.edu, tcku@wesleyan.edu

2003 Seattle Annual Meeting (November 2–5, 2003)

Geochemistry, Aqueous I: Low Temperature Processes and Mechanisms