2004 Denver Annual Meeting (November 7–10, 2004)

Session No. 108
Monday, 8 November 2004: 1:30 PM-5:30 PM

T68. Nano-Geochemistry and Nano-Structures in Earth Systems

GSA Geobiology & Geomicrobiology Division

 

Huifang Xu and Yifeng Wang, Advocates
Paper #
Start Time
1
1:30 PM
SURFACE REACTIVITY OF NANOCRYSTALLINE ANATASE
RIDLEY, Moira K., Texas Tech Univ, PO Box 41053, Lubbock, TX 79409-1053, MACHESKY, Michael L., Illinois State Water Survey, 2204 Griffith Drive, Champaign, IL 61820 and HACKLEY, Vincent, National Institute of Standards & Technology, 100 Bureau Drive, Gaithersburg, MA 20899-8522, moira.ridley@ttu.edu, moira.ridley@ttu.edu
2
1:45 PM
EFFECTS OF AGGREGATION-BASED GROWTH ON HEAVY METAL SORPTION AND PRECIPITATION ONTO NANOSCALE IRON OXYHYDROXIDES
KIM, Christopher S., Department of Physical Sciences, Chapman Univ, One University Drive, Orange, CA 92866, WAYCHUNAS, Glenn A., Center for Environmental Kinetics Analysis (CEKA), Penn State University, University Park, PA 16802 and BANFIELD, Jillian F., Department of Earth and Planetary Sciences, Univ of California Berkeley, 307 McCone Hall, Berkeley, CA 94720, chriskim@stanfordalumni.org, chriskim@stanfordalumni.org
3
2:05 PM
PHOTOCHEMICAL REDUCTION OF IRON OXIDE NANOPARTICLES AS A FUNCTION OF MINERAL SIZE
MADDEN, Andrew S. and HOCHELLA Jr, Michael F., Dept. of Geosciences, Virginia Tech, 4044 Derring Hall, Blacksburg, VA 24061, amadden@vt.edu, amadden@vt.edu
4
2:20 PM
HEAT CAPACITY OF INTRA-CRYSTALLINE WATER MOLECULES IN ZEOLITES
NEUHOFF, Philip S. and KEDDY, Scott M., Geological Sciences, Univ of Florida, 241 Williamson Hall, P.O. Box 112120, Gainesville, FL 32611-2120, neuhoff@ufl.edu, neuhoff@ufl.edu
5
2:35 PM
GEOCHEMICAL IMPLICATIONS OF NANOMETER-SCALE PORES IN NATURAL MATERIALS
WANG, Yifeng, P. O. Box, MS 0779, Sandia National Laboratories, Albuquerque, NM 87185-0779 and XU, Huifang, Department of Geology and Geophysics, Univ of Wisconsin, Madison, WI 53706, ywang@sandia.gov, ywang@sandia.gov
6
2:55 PM
THE MOUNT PLEASANT TUNGSTEN MINE: USING MICRO-ANALYTICAL TECHNIQUES TO UNDERSTAND MINERAL-WATER INTERACTIONS
PETRUNIC, Barbara M., Department of Geology, University of New Brunswick, PO Box 4400, Fredericton, NB E3B 5A3 and AL, Tom, Dept. of Geology, Univ. of New Brunswick, PO Box 4400, Fredericton, NB E3B 5A3, Canada, o0bsn@unb.ca, o0bsn@unb.ca
7
3:10 PM
GEOCHEMICAL CHAOS: PERIODIC AND NONPERIDIC GROWTH OF MIXED- LAYER PHYLLOSILICATES
WANG, Yifeng, P. O. Box, MS 0779, Sandia National Laboratories, Albuquerque, NM 87185-0779 and XU, Huifang, Department of Geology and Geophysics, Univ of Wisconsin, Madison 53706, ywang@sandia.gov, ywang@sandia.gov
 
3:25 PM
Break
8
3:40 PM
THE IMPORTANCE OF NANOPARTICLES AND THEIR UNUSUAL PROPERTIES IN SEDIMENTS AND SOILS FROM HEAVY-METAL CONTAMINATED SITES
HOCHELLA Jr, Michael F.1, MADDEN, Andrew S.1 and MOORE, Johnnie N.2, (1)Dept. of Geosciences, Virginia Tech, 4044 Derring Hall, Blacksburg, VA 24061, (2)Department of Geology, Univ of Montana, Missoula, MT 59812, hochella@vt.edu, hochella@vt.edu
9
4:00 PM
PEDOGENIC IRON OXIDE MINERALOGIC VARIATION FROM A CLIMATIC AND GEOGRAPHIC TRANSECT OF THE LOESS PLATEAU, CENTRAL CHINA
WAGONER, Laureen, Geology, Univ of California, One Shields Ave, Davis, CA 95616, SINGER, Michael J., LAWR, Univ of California, Davis, CA 95616 and DENG, Chenglong, Institute of Geology and Geophysics, Chinese Academy of Sciences, POB#9825, Beijing, 100029, China, wagoner@geology.ucdavis.edu, wagoner@geology.ucdavis.edu
10
4:15 PM
CHARACTERISTICS AND SIGNIFICANCE OF NANO-ROD CALCITES OF BIOMINERALIZATION IN THE LOESS OF CHINA
CHEN, Tianhu1, XU, Huifang2, XIE, Qiaoqin1, CHEN, Jun3, JI, Junfeng3 and LU, Huayu4, (1)Scholl of Natural Resources and Environmental Engineering, Hefei Univ of Technology, Hefei, 230009, (2)Department of Geology and Geophysics, Univ of Wisconsin, Department of Geology and Geophysics, University of Wisconsin, Madison, WI 53706, USA, Madison, WI 53706, (3)Department of Earth Sciences, Nanjing Univ, Nanjing, 210093, China, (4)State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences, No.10, Fenghui Nanlu, Xi'an, 710075, China, chentianhu168@vip.sina.com, chentianhu168@vip.sina.com
11
4:30 PM
BIOMIMIC GROWTH OF NANO-STRUCTURED MINERALS IN ORGANIC-BEARING SOLUTIONS
XU, Huifang1, NIE, Zimin1 and WANG, Yifeng2, (1)Dept. of Earth and Planetary Sciences, Univ of New Mexico, Albuquerque, NM 87131, (2)P. O. Box, MS 0779, Sandia National Laboratories, Albuquerque, NM 87185-0779, hfxu@unm.edu, hfxu@unm.edu
12
4:45 PM
Withdrawn
13
5:00 PM
CHARACTERISTICS AND GENESIS OF MAGHEMITE IN LOESS-PALEOSOL SEQUENCES OF CHINA
XIE, Qiaoqin1, CHEN, Tianhu2, XU, Huifang3, XU, Xiaochun, CHEN, Jun5, JI, Junfeng5 and LU, Huayu6, (1)Scholl of Natural Resources and Environmental Engineering, Hefei Univ of Technology, Hefei, 230009, (2)Scholl of Natural Resources and Environmental Engineering, Hefei Univ of Technology, Hefei, 230009, China, (3)Department of Geology and Geophysics, Univ of Wisconsin, Department of Geology and Geophysics, University of Wisconsin, Madison, WI 53706, USA, Madison, WI 53706, (4)Department of Earth Sciences, Nanjing Univ, Nanjing, 210093, China, (5)State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences, No.10, Fenghui Nanlu, Xi'an, 710075, China, qqxie303@sohu.com, qqxie303@sohu.com
14
5:15 PM
Withdrawn
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