Results 91 to 100 of about 16,161 (120)

The initial phase of cave formation: Aquifer-scale three-dimensional models with strong exchange flow

Journal of Hydrology, 2019
Limestone, dolomite, gypsum, anhydrite, and salt are rocks, which can be dissolved, either by water alone, or in the case of limestone and dolomite more efficiently by water enriched with carbon dioxide.
G. Kaufmann, D. Romanov
semanticscholar   +1 more source

Distribution Characteristics, Genesis, and Health Risk Assessment of Fluoride in Groundwater of the Taigemiao Mining Area

Water environment research
This study investigates the distribution, origin, and health risks of fluoride in groundwater within the Taigemiao mining area using hydrochemical analysis, PHREEQC modeling, and the U.S. EPA noncarcinogenic risk assessment model. The key findings are as
Z. Tian, Binbin Jiang, Xiao Wang, Shuwei Qiu   +3 more
semanticscholar   +1 more source

Fractionation of Mg isotopes by clay formation and calcite precipitation in groundwater with long residence times in a sandstone aquifer, Ordos Basin, China

Geochimica et Cosmochimica Acta, 2018
Compared with the numerous studies on river and soil waters, studies on Mg isotopes of groundwater are limited. In this study, a sandstone aquifer in the Ordos Basin, China with contrast contents of Mg in shallow and deep groundwater is selected to ...
Hong Zhang, Xiaowei Jiang, L. Wan, S. Ke, Sheng‐Ao Liu, G. Han, Huaming Guo, Aiguo Dong   +7 more
semanticscholar   +1 more source

Influence of thick karst vadose zone on aquifer recharge in karst formations

, 2021
Vadose zone has been proven as an essential buffer zone for aquifer recharge. However, most previous researches associated with vadose zone influence of groundwater recharge concern granular porous media aquifers.
Ruitong Liu, Jinguo Wang, Hongbin Zhan, Zhou Chen, Weijiang Li, Dong Yang, Shiyu Zheng   +6 more
semanticscholar   +1 more source

Experiment on CO2-brine-rock interaction during CO2 injection and storage in gas reservoirs with aquifer

, 2020
To understand the impact of CO2-brine-rock interaction on formation properties and the differences between gas zone and water zone, dynamic and static experiments were conducted under gas reservoir conditions to imitate the process of CO2 injection and ...
Yong Tang, Shilai Hu, Youwei He, Yong Wang, Xiaojin Wan, Shuheng Cui, Keji Long   +6 more
semanticscholar   +1 more source

High hexavalent chromium in groundwater from a deep aquifer in the Baiyangdian basin of the North China Plain.

Environmental Science and Technology, 2020
Hexavalent chromium (Cr(VI)) is known to occur naturally in shallow oxic groundwater, typically from aquifers associated with mafic and ultramafic formations, but information on the occurrence of Cr(VI) in deep groundwater from large sedimentary basins ...
Huaming Guo, Yi Chen, Huiying Hu, K. Zhao, Haitao Li, Song-Biao Yan, W. Xiu, R. Coyte, A. Vengosh   +8 more
semanticscholar   +1 more source

A Critical Review of Groundwater Table Fluctuation: Formation, Effects on Multifields, and Contaminant Behaviors in a Soil and Aquifer System.

Environmental Science and Technology
The groundwater table fluctuation (GTF) zone is an important medium for the hydrologic cycle between unsaturated soil and saturated aquifers, which accelerates the migration, transformation, and redistribution of contaminants and further poses a ...
Yaqiang Wei, Yuling Chen, Xinde Cao, Minghui Xiang, Yuan Huang, Hui Li   +5 more
semanticscholar   +1 more source

A review of recharge and clogging in sandstone aquifer

, 2020
Groundwater heat pump (GWHP) systems are widely used to exploit shallow geothermal energy because of their stable temperature, high efficiency, and excellent heat transfer capabilities.
Wei-Kang Song, Xiaoxiu Liu, Tuanfeng Zheng, Jiaming Yang   +3 more
semanticscholar   +1 more source

A mobile-immobile model for reactive solute transport in a radial two-zone confined aquifer

, 2020
A mobile-immobile model (MIM) of reactive solute transport for an injection well was investigated in a radial two-zone confined aquifer system made up of the aquifer formation zone and the wellbore skin zone evolving from mud invasion or extensive well ...
X. Li, Z. Wen, Qi Zhu, H. Jakada
semanticscholar   +1 more source

A Sedimentary Facies-Based Method to Control Water Hazards in the Roof of Deep Jurassic Coals

Mine Water and the Environment, 2023
Yang Wang, Yonghui Wu, Qin Ge, Zhiguo Pu, Jinhui Liu, Yanhong Zhang, Xiangjian Xie   +6 more
semanticscholar   +1 more source