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Dissolved Organic Carbon 14C in Southern Nevada Groundwater and Implications for Groundwater Travel Times 科技报告
来源:US Department of Energy (DOE). 出版年: 2016
作者:  Hershey, Ronald L.;  Fereday, Wyall;  Thomas, James M
收藏  |  浏览/下载:1/0  |  提交时间:2019/04/05
Interpretation of stable isotope, denitrification, and groundwater age data for samples collected from Sandia National Laboratories /New Mexico (SNL/NM) Burn Site Groundwater Area of Concern 科技报告
来源:US Department of Energy (DOE). 出版年: 2016
作者:  Madrid, V.;  Singleton, M. J.;  Visser, A.;  Esser, B.
收藏  |  浏览/下载:6/0  |  提交时间:2019/04/05
Laboratory Experiments to Evaluate Matrix Diffusion of Dissolved Organic Carbon Carbon-14 in Southern Nevada Fractured-rock Aquifers 科技报告
来源:US Department of Energy (DOE). 出版年: 2016
作者:  Hershey, Ronald L.;  Fereday, Wyatt
收藏  |  浏览/下载:0/0  |  提交时间:2019/04/05
California GAMA Special Study: Importance of River Water Recharge to Selected Groundwater Basins 科技报告
来源:US Department of Energy (DOE). 出版年: 2016
作者:  Visser, Ate;  Moran, Jean E.;  Singleton, Michael J.;  Esser, Bradley K.
收藏  |  浏览/下载:4/0  |  提交时间:2019/04/05
Radiochemically-Supported Microbial Communities: A Potential Mechanism for Biocolloid Production of Importance to Actinide Transport 科技报告
来源:US Department of Energy (DOE). 出版年: 2014
作者:  Moser, Duane P;  Hamilton-Brehm, Scott D;  Fisher, Jenny C;  Bruckner, James C;  Kruger, Brittany;  Sackett, Joshua;  Russell, Charles E;  Onstott, Tullis C;  Czerwinski, Ken
收藏  |  浏览/下载:17/0  |  提交时间:2019/04/05
Due to the legacy of Cold War nuclear weapons testing  the Nevada National Security Site (NNSS  formerly known as the Nevada Test Site (NTS)) contains millions of Curies of radioactive contamination. Presented here is a summary of the results of the first comprehensive study of subsurface microbial communities of radioactive and nonradioactive aquifers at this site. To achieve the objectives of this project  cooperative actions between the Desert Research Institute (DRI)  the Nevada Field Office of the National Nuclear Security Administration (NNSA)  the Underground Test Area Activity (UGTA)  and contractors such as Navarro-Interra (NI)  were required. Ultimately  fluids from 17 boreholes and two water-filled tunnels were sampled (sometimes on multiple occasions and from multiple depths) from the NNSS  the adjacent Nevada Test and Training Range (NTTR)  and a reference hole in the Amargosa Valley near Death Valley. The sites sampled ranged from highly-radioactive nuclear device test cavities to uncontaminated perched and regional aquifers. Specific areas sampled included recharge  intermediate  and discharge zones of a 100  000-km2 internally-draining province  known as the Death Valley Regional Flow System (DVRFS)  which encompasses the entirety of the NNSS/NTTR and surrounding areas. Specific geological features sampled included: West Pahute and Ranier Mesas (recharge zone)  Yucca and Frenchman Flats (transitional zone)  and the Western edge of the Amargosa Valley near Death Valley (discharge zone). The original overarching question underlying the proposal supporting this work was stated as: Can radiochemically-produced substrates support indigenous microbial communities and subsequently stimulate biocolloid formation that can affect radionuclides in NNSS subsurface nuclear test/detonation sites? Radioactive and non-radioactive groundwater samples were thus characterized for physical parameters  aqueous geochemistry  and microbial communities using both DNA- and cultivation-based tools in an effort to understand the drivers of microbial community structure (including radioactivity) and microbial interactions with select radionuclides and other factors across the range of habitats surveyed.  
Water-Chemistry Evolution and Modeling of Radionuclide Sorption and Cation Exchange during Inundation of Frenchman Flat Playa 科技报告
来源:US Department of Energy (DOE). 出版年: 2013
作者:  Hershey, Ronald;  Cablk, Mary;  LeFebre, Karen;  Fenstermaker, Lynn;  Decker, David
收藏  |  浏览/下载:2/0  |  提交时间:2019/04/05
Atmospheric tests and other experiments with nuclear materials were conducted on the Frenchman Flat playa at the Nevada National Security Site  Nye County  Nevada  residual radionuclides are known to exist in Frenchman Flat playa soils. Although the playa  
Final Report: Phase II Nevada Water Resources Data, Modeling, and Visualization (DMV) Center 科技报告
来源:US Department of Energy (DOE). 出版年: 2013
作者:  Jackman, Thomas [Desert Research Institute];  Minor, Timothy [Desert Research Institute];  Pohll, Gregory [Desert Research Institute]
收藏  |  浏览/下载:3/0  |  提交时间:2019/04/05
Estimation of Groundwater Recharge at Pahute Mesa using the Chloride Mass-Balance Method 科技报告
来源:US Department of Energy (DOE). 出版年: 2013
作者:  Cooper, Clay A [DRI];  Hershey, Ronald L [DRI];  Healey, John M [DRI];  Lyles, Brad F [DRI]
收藏  |  浏览/下载:10/0  |  提交时间:2019/04/05
Groundwater recharge on Pahute Mesa was estimated using the chloride mass-balance (CMB) method. This method relies on the conservative properties of chloride to trace its movement from the atmosphere as dry- and wet-deposition through the soil zone and ul  
Assessment of Brine Management for Geologic Carbon Sequestration 科技报告
来源:US Department of Energy (DOE). 出版年: 2013
作者:  Breunig, Hanna M. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Environmental Energy Technologies Division];  Birkholzer, Jens T. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Environmental Energy Technolog
收藏  |  浏览/下载:7/0  |  提交时间:2019/04/05
Data Report: Meteorological and Evapotranspiration Data from Sagebrush and Pinyon Pine/Juniper Communities at Pahute Mesa, Nevada National Security Site, 2011-2012 科技报告
来源:US Department of Energy (DOE). 出版年: 2013
作者:  Jasoni, Richard L [DRI];  Larsen, Jessica D [DRI];  Lyles, Brad F. [DRI];  Healey, John M [DRI];  Cooper, Clay A [DRI];  Hershey, Ronald L [DRI];  Lefebre, Karen J [DRI]
收藏  |  浏览/下载:6/0  |  提交时间:2019/04/05
Pahute Mesa is a groundwater recharge area at the Nevada National Security Site. Because underground nuclear testing was conducted at Pahute Mesa  groundwater recharge may transport radionuclides from underground test sites downward to the water table  th