نتایج جستجو برای: exploratory geochemistry

تعداد نتایج: 57819  

2013
Fei Qi Guang-Guo Ying Kaimin Shih Jolanta Kumirska Elif Pehlivanoglu-Mantas Xiaojun Luo

1 Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, No. 35 Qinghua East Road, Beijing 100083, China 2 State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China 3Department of Civil Engineering, The University of Hong Kong, P...

2009
C.-J. Lin L. Pan D. G. Streets S. K. Shetty C. Jang X. Feng H.-W. Chu T. C. Ho

C.-J. Lin, L. Pan, D. G. Streets, S. K. Shetty, C. Jang, X. Feng, H.-W. Chu, and T. C. Ho Department of Civil Engineering, Lamar University, Beaumont, TX 77710, USA School of Environmental Science & Engineering, South China University of Technology, Guangzhou, 510006, Guangdong, China Department of Mechanical Engineering, Lamar University, Beaumont, TX 77710, USA Decision and Information Scienc...

2009
Robert J. Speakman Michael D. Glascock

One hundred and nineteen samples of clay (n = 42), rock and sand temper (n = 7), and pottery (n = 70) from the various drainages in and around the North Carolina Sandhills were analyzed by instrumental neutron activation analysis (NAA) at the University of Missouri Research Reactor Center (MURR). Here we report the analytical methods and describe some of the chemical patterns identified in the ...

Journal: :Environment international 2005
Alfred A Duker E J M Carranza Martin Hale

Arsenic occurs naturally in the earth's crust and is widely distributed in the environment. Natural mineralization and activities of microorganisms enhance arsenic mobilization in the environment but human intervention has exacerbated arsenic contamination. Although arsenic is useful for industrial, agricultural, medicinal and other purposes, it exerts a toxic effect in a variety of organisms, ...

2011
Ian D. Clark

1. Background 2. Elements, Nuclides, and Stable Isotopes 3. The Mass Spectrometer and Isotope Ratio Measurement 4. Isotope Fractionation 5. Temperature and Fractionation 6. Stable Isotopes in the Hydrologic Cycle 7. O in Minerals and Rocks 8. C and Carbon Cycling 9. N Cycling in Watersheds 10.S and the Sulfur Cycle 11. Chlorine and Bromine Isotopes 12. Light Lithophile Elements: δLi and δB Glos...

Journal: :Annual review of genetics 2004
Laura R Croal Jeffrey A Gralnick Davin Malasarn Dianne K Newman

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...

2009
X. W. Fu X. Feng Z. Q. Dong R. S. Yin J. X. Wang Z. R. Yang H. Zhang

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...

2010
Nguyen M. Tue Go Suzuki Agus Sudaryanto Tomohiko Isobe Shin Takahashi Tu B. Minh Pham T. K. Trang Pham H. Viet Gan Zhang Shinsuke Tanabe

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...

2010
Z. G. Li X. Feng P. Li L. Liang S. L. Tang S. F. Wang X. W. Fu G. L. Qiu L. H. Shang

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...

The Khuzestan plain is located in south western of Iran and is covered about 3.9 percent of the country area. Khuzestan plain is mostly covered by the Quaternary deposits. The thickness of these deposits exceeds 300m in some areas .Sedimentology and geochemistry of sand dunes producing centers are not only important for determining sedimentary and geochemical features of the particles possible ...

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