نتایج جستجو برای: environmental geochemistry

تعداد نتایج: 376346  

2010
Yan Zhao Donald G. Truhlar

Quantum mechanical electronic structure calculations are playing an increasingly useful role in many areas of mineralogy and geochemistry. This review introduces the density functional method for such calculations, gives an overview of the density functionals developed at the University of Minnesota, and summarizes selected applications using these density functionals that are relevant to miner...

2007
Summer J. Barber

Department of Earth and Environmental Science Environmental Geochemistry Laboratory The University of Texas at San Antonio ________________________________________________________________________ Abstract Century-long disposal of sewage sludge in Mitchell Lake at San Antonio, Texas has resulted in hyper-eutrophic conditions and an excess accumulation of toxic metals in the lake system. To ident...

Journal: :Marine pollution bulletin 2007
Jian-Bo Shi Carman C M Ip Chole W Y Tang Gan Zhang Rudolf S S Wu Xiang-dong Li

Spatial and temporal variations of mercury in sediments from Victoria Harbour, Hong Kong Jian-bo Shi , Carman Ip , Chole Tang , Gan Zhang , Rudolf Wu , Xiang-dong Li 1∗ Department of Civil & Structural Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Gua...

2018
Jill N. Sutton Luc André Damien Cardinal Daniel J. Conley Gregory F. de Souza Jonathan Dean Justin Dodd Claudia Ehlert Michael J. Ellwood Patrick J. Frings Patricia Grasse Katharine Hendry Melanie J. Leng Panagiotis Michalopoulos Virginia N. Panizzo George E. A. Swann

Citation: Sutton JN, André L, Cardinal D, Conley DJ, de Souza GF, Dean J, Dodd J, Ehlert C, Ellwood MJ, Frings PJ, Grasse P, Hendry K, Leng MJ, Michalopoulos P, Panizzo VN and Swann GEA (2018) A Review of the Stable Isotope Bio-geochemistry of the Global Silicon Cycle and Its Associated Trace Elements. Front. Earth Sci. 5:112. doi: 10.3389/feart.2017.00112 A Review of the Stable Isotope Bio-geo...

Journal: :Ground water 2018
Rebecca L Kreuzer Thomas H Darrah Benjamin S Grove Myles T Moore Nathaniel R Warner William K Eymold Colin J Whyte Gautam Mitra Robert B Jackson Avner Vengosh Robert J Poreda

Environmental concerns regarding the potential for drinking water contamination in shallow aquifers have accompanied unconventional energy development in the northern Appalachian Basin. These activities have also raised several critical questions about the hydrogeological parameters that control the naturally occurring presence and migration of hydrocarbon gases in shallow aquifers within petro...

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