Results 41 to 50 of about 337 (135)

Identification of Water-rock Reaction Mechanism for Uranium In-situ Recovery Desalination Process Based on Inversion Modelling

Yuanzineng kexue jishu, 2023
For the in-situ recovery (ISR) mining of sandstone-type uranium deposits with the high total dissolved solids (TDS), the desalination process of injecting fresh water was required.
WANG Bing1,2;LUO Yue1,3,*;QIAN Jiazhong2;GAO Bai1;LIU Jinhui1,3;LI Xun1;ZHANG Yanhong1,3;CHEN Qianqian1;LI Liyao3
doaj   +1 more source

Tracing Urban Hydrological Connectivity in the Highly Altered Patiño Aquifer, Asunción, Paraguay

Hydrological Processes, Volume 40, Issue 7, July 2026.
Conceptual model of Hydrological Connectivity across the Patiño Aquifer system in Asunción, Paraguay. (A–E) Illustrate key landscape and hydrological components, including (A) the Paraguay River, (B) the Asunción Metropolitan Area, (C) Urban Flash Flooding and Return Flows, (D) an Urban Stream and (E) a Rural Landscape.
María Leticia Montiel, Ricardo Sánchez‐Murillo, María Sol Benitez, Max Pastén, Melanie Vital, Juan Camacho‐Puerto, Liz Báez, Claudia Avalos   +7 more
wiley   +1 more source

Marine Isotope Stage 4 glaciation in northern England, UK: Evidence from Victoria Cave, North Yorkshire

Journal of Quaternary Science, Volume 41, Issue 5, Page 770-783, July 2026.
ABSTRACT Victoria Cave, north Yorkshire, England, contains a long sequence of Pleistocene clastic sediments and calcite flowstones. Earlier work, using U–Th dating, established that the flowstone units formed in interglacial stages corresponding to Marine Isotope Stages (MIS) 13, 11, 9, 7 and 5.
Tom C. Lord, Peter Wilson, Joyce Lundberg, Adrian P. Palmer, Matt W. Telfer, Rhiannon E. Stevens, Phillip J. Murphy, Mark Lewis   +7 more
wiley   +1 more source

Influence of geochemical factors on uranium migration during in-situ leaching [PDF]

E3S Web of Conferences
In-situ leaching is one of the most efficient methods for the development of sandstone-type uranium deposits. The efficiency of the process is determined by geochemical mechanisms of uranium mineral dissolution, oxidation of tetravalent uranium, and the ...
Nazarov Valijon, Khalimov Ilkhom, Sharafutdinov Ulug‘bek   +2 more
doaj   +1 more source

Iowa Population Exposures to Metals and Metalloids in Well Water

Environmental Toxicology, Volume 41, Issue 7, Page 459-469, July 2026.
ABSTRACT Previous Iowa studies suggest low levels and chronic arsenic exposures are associated with prostate cancer. The rural Iowa population heavily relies on private wells for drinking water resources and thus is vulnerable to contaminants such as heavy metals found in well water.
Donald L. Simmons, Brian Wels, Alyssa Mattson, Elizabeth M. Miller, Zachary E. Hoggarth, Maya Sternberg, Susie Y. Dai, Dustin May, Michael Schueller, Michael Pentella   +9 more
wiley   +1 more source

Sequence stratigraphic frameworks in different scales and sandstone-type uranium ore-formation of Minghuazhen Formation in Dagang area, Bohai Bay Basin

地质科技通报
Objective The Bohai Bay Basin, situated within the Eurasian metallogenic belt, is one of the world's two largest belts for sandstone-type uranium deposits, exhibiting significant potential for uranium mineralization.
Shunyao SONG, Minfang WANG, Xiaoyu SHANG, Hongli ZOU, Junlin CHEN, Jianyuan FENG, Zhongmei MA, Rui HUA, Chuang LI, Yichao WANG   +9 more
doaj   +1 more source

Cretaceous Spatiotemporal Variations in Tectonic Shortening Directions in the Longmen Shan Tectonic Belt and Geodynamic Implications: Constraints From AMS Fabrics and Crustal Rotation in the Western Sichuan Basin

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.
Abstract As a major tectonic boundary along the eastern margin of the Tibetan Plateau, the Longmen Shan tectonic belt (LMSTB) underwent pronounced crustal shortening and thickening during the Cretaceous. However, the spatiotemporal evolution of Cretaceous shortening and the boundary's response to far‐field tectonic forcing remain incompletely resolved.
Lifu Hou, Lilin Lan, Zaizheng Zhou, Yuhang Cai, Qiwen Zhong, Fujun Liu, Zhen Yu, Yabo Tong, Junling Pei   +8 more
wiley   +1 more source

OSL Characteristics of Sandstone-type Uranium Deposits Soil and Optimization of Measurement Process

Yuanzineng kexue jishu
Sandstone-type uranium deposits are recognized as the main type for uranium exploration and mining in China, owing to their large reserves and ease of extraction. However, some of the sandstone-type uranium deposits are covered by thick overburden layers
ZHENG Song1, 2, WANG Meng1, 2, , GU Yi1, 2, WANG Yong3, ZHANG Qingxian1, 2, GE Liangquan1, 2, WANG Zewei1, 2
doaj   +1 more source

Bayesian Inversion of Electrical Resistivity Tomography Data for Uranium Exploration Through a Localized Ensemble‐Based Approach

Geophysical Prospecting, Volume 74, Issue 4, May 2026.
ABSTRACT The electrical resistivity tomography (ERT) is a geophysical method commonly used in mining exploration to reconstruct the subsurface resistivity. The associated inverse problem is typically addressed using deterministic approaches that minimize an objective function and guarantee fast convergence.
Alessandro Vinciguerra, Guy Marquis, Jean‐François Girard   +2 more
wiley   +1 more source

Rethinking Collinearity in Self‐Organizing Maps: Evidence From Geophysical Data Classification

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 2, April 2026.
Abstract This study examines the impact of collinearity on unsupervised machine learning algorithms (UMLAs), specifically Self‐Organizing Maps (SOMs), for detecting lithological boundaries in geophysical data. Using a multi‐scale experimental framework that includes bivariate isotropic clusters, geologically complex Noddy simulations, and real‐world ...
Limin Xu, Leonardo Feltrin, Eleanor C. R. Green   +2 more
wiley   +1 more source