GEOCHEMICAL SOCIETY
SESSIONS AND PRESENTATIONS

GS21A  BCC:302  Tues  0830h
Surface Geochemistry and Reaction Rates I (joint  with M,V)
Presiding: D A Sverjensky, Johns Hopkins Univ

   0830h   GS21A-01 INVITED  The Role of Mineral Structure in 
                    the Binding Mechanisms of Cations and Anions: 
                    *A Manceau
   0900h   GS21A-02 INVITED  Geochemical Controls on the 
                    Sorption of Uranium (6+) Onto Mineral 
                    Surfaces: *R T Pabalan, F P Bertetti, J D 
                    Prikryl
   0930h   GS21A-03 INVITED  Adsorption of Organic Acids Onto 
                    Minerals Surfaces: ATR-FTIR Spectroscopy and 
                    MO Calculations: *J D Kubicki, M J Itoh, S E 
                    Apitz
   1000h   Break
   1030h   GS21A-04 Detection of Surface Hydroxyl Species on 
                    Quartz and Feldspars Using Reflectance 
                    Infrared Spectroscopy: *C M Koretsky, D A 
                    Sverjensky
   1045h   GS21A-05 Crystallographic Heterogeneity of Goethite 
                    Surfaces: J R Rustad, A R Felmy
   1100h   GS21A-06 Surface Charge Behavior of Andalusite: 
                    Implications for Mixed Oxide Surface Group 
                    Contributions: *J B Cruz, J V Walther
   1115h   GS21A-07 INVITED  A Constant Capacitance Model for 
                    Dissolution Rates of Oxides and Silicates at 
                    25 C and 1 Bar: D A Sverjensky, L J Criscenti, 
                    C M Koretsky, N Sahai

GS31A  BCC:302  Wed  0830h
 Surface Geochemistry and Reaction Rates II (joint  with M,V)
Presiding: D A Sverjensky, Johns Hopkins Univ

   0830h   GS31A-01 INVITED  Reactions at Iron Sulfide Surfaces 
                    in Aqueous Solutions: *M A A Schoonen, Y Xu, 
                    J Bebie
   0900h   GS31A-02 INVITED  Chemical Reactivity of Dolomite 
                    Surfaces: P V Brady, H W Papenguth
   0930h   GS31A-03 INVITED  Reaction Kinetics and Reversibility 
                    of Analcime Dissolution at pH9 and 25~Lo~KC: 
                    *W M Murphy, J D Prikryl, R T Pabalan
   1000h   Break
   1030h   GS31A-04 INVITED  Biogenic Silica Dissolution in 
                    Sediments of the Southern Ocean: Kinetics, 
                    Mechanisms, and Reactive Surface Area: *P 
                    Van Cappellen
   1100h   GS31A-05 Dissolution Rate and Solubility of 
                    Chalcedony: A Fine Crystallized Mixture of 
                    Quartz and Moganite: *S R Gislason, P J 
                    Heaney, E H Oelkers, J Schott
   1115h   GS31A-06 Forces Measured Between Silica Surfaces in 
                    Solution Using a Scanning Force Microscope: 
                    *A S Lea, D R Baer
   1130h   GS31A-07 Kinetics at the Calcite-Solution Interface: 
                    An Atomic Force Microscopy Study: Y Liang, 
                    D R Baer, J E Amonette, *A S Lea, M H 
                    Engelhard
   1145h   GS31A-08 Growth of Correlated Pore-Scale Structures 
                    in Sedimentary Rocks: A Dynamical Model: *E 
                    Aharonov, D H Rothman

Return to 1995 Spring Meeting Summary