Bacteria are remarkable in their metabolic diversity due to their ability to harvest energy from myriad oxidation and reduction reactions. In some cases, their metabolisms involve redox transformations of metal(loid)s, which lead to the precipitation, transformation, or dissolution of minerals. Microorganism/mineral interactions not only affect the geochemistry of modern environments, but may a...

Proposed radioactive waste repositories require long residence times within deep geological settings for which we have little knowledge of local or regional subsurface dynamics that could affect the transport of hazardous species over the period of radioactive decay. Given the role of microbial processes on element speciation and transport, knowledge and understanding of local microbial ecology...

Gallium exhibits weak metallic properties owing to its proximity non-metals in the periodic table, yet is volatile extra-terrestrial bodies and fairly reactive nature. It has been used extensively elucidate Solar System evolution, planet interior differentiation, terrestrial processes. However, Ga speciation transformation various planetary compartments dynamics of trans-reservoir pathways rema...

THE GUSEV CRATER: PRELIMINARY RESULTS OF THE TES AND MINI-TES DATA ANALYSIS. R. O. Kuzmin, P. R. Christensen, S. W. Ruff, T. G. Graff, A. T. Knudson, M. Yu. Zolotov, Athena Science Team, Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, 19 Kosygin str., Moscow 119991, Russia, e-mail: [email protected], Department of Geological Sciences, Arizona State Univers...

Atmospheric total gaseous mercury (TGM) concentrations and wet and dry deposition of mercury at a high-altitude mountain peak in south China X. W. Fu, X. Feng, Z. Q. Dong, R. S. Yin, J. X. Wang, Z. R. Yang, and H. Zhang State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China Guizhou Environmental Science Research Institut...

Nguyen M. Tue1, Go Suzuki1, Agus Sudaryanto2, Tomohiko Isobe2, Shin Takahashi1, Tu B. Minh3, Pham T. K. Trang3, Pham H. Viet3, Gan Zhang4, Shinsuke Tanabe1 1Center for Marine Environmental Studies, Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan 2Senior Research Fellow Center, Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan 3Centre for Environmental Technology and Sustai...

Mercury air-borne emissions from 5 municipal solid waste landfills in Guiyang and Wuhan, China Z. G. Li, X. Feng, P. Li, L. Liang, S. L. Tang, S. F. Wang, X. W. Fu, G. L. Qiu, and L. H. Shang State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China Cebam Analytical, Inc., 3927 Aurora Avenue N, Seattle, WA 98103, USA Receiv...

During the 2000 field season, both regional and detailed till sampling surveys were conducted in the Cariboo region of central British Columbia (Figure 1). These surveys complement the longer term objectives of the NATMAP Ancient Pacific Margin (APM) project (see Nelson, 2000) and provide continuity to the surficial till geochemistry work initiated by Dixon-Warren and Hickin (2000) in 1999 as p...