A Spatial Mixing Model to Assess Groundwater Dynamics Affected by Mining in a Coastal Fractured Aquifer, China

doi:10.1007/s10230-017-0505-x

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院页岩气与地质工程重点实验室

	A Spatial Mixing Model to Assess Groundwater Dynamics Affected by Mining in a Coastal Fractured Aquifer, China
	Gu, Hongyu 1,2,3; Ma, Fengshan 1; Guo, Jie 1; Zhao, Haijun 1; Lu, Rong 1; Liu, Gang 1
刊名	MINE WATER AND THE ENVIRONMENT
	2018-06-01
卷号	37 期号:2 页码:405-420
关键词	Principal component analysis Mixing calculation Sanshandao gold mine
ISSN号	1025-9112
DOI	10.1007/s10230-017-0505-x
文献子类	Article
英文摘要	A linear mixing model method based on principal component analysis (PCA) in three-dimensional space was used to assess groundwater dynamics. PCA was performed on a series of hydrochemical datasets collected from 2009 to 2014 (except in 2010). The results of PCA and a prior conceptual model were used to identify the evolution and potential end-members of water. Then, a mixing calculation code was applied to compute the mixing proportions, and the results were used to reconstruct the mixing process. Deviations were evaluated by comparing the computed and measured concentrations of ions. The accuracy of this method was compared to that of a 2D model that was based on only conservative ions and a 3D model developed in this study that does not consider the water's physical parameters. The results indicated that the method that considered all of the measured ions, stable isotopes, and physical parameters, performed well. Its accuracy was demonstrated by good agreement between its measured and simulated values. The mean values of deviation for delta O-18, delta D, K, Na, Ca, Mg, Cl, and SO4 were 0.26, 0.51, 0.19, 0.08, 0.21, 0.15, 0.05, and 0.08, respectively. Five water sources and their groundwater dynamics were interpreted using this model; the results demonstrated that mining has had a substantial influence on the groundwater flow system in both the vertical and lateral directions. Above a depth of -375 m, freshwater is the dominant source, and its proportions in most sites exceeds 40%. Seawater has reached a depth of - 510 m, and its maximum proportion of 82% can be observed at 510-2a. Quaternary water recharged the area between F3 and the prospecting line 2230. Its proportion exceeded 45% at most sites. The recharge depth reached - 510 m at most sites and - 600 m at some sites. Calcium-rich and Mg-rich water were distributed above and below - 510 m, respectively. These distinguishing features indicate that induced ground deformation broke through the Quaternary aquifuge and increased the vertical recharge in the tensional zone, while preventing vertical recharge in the compressive zone at the subsidence center.
WOS关键词	STATISTICAL-ANALYSIS ; STABLE-ISOTOPES ; END-MEMBERS ; WATER ; HYDROCHEMISTRY ; CHEMISTRY ; RECHARGE ; RATIOS ; SITE ; FLOW
WOS研究方向	Water Resources
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000431882400019
资助机构	National Key Research Projects of China(2016YFC0402802) ; National Key Research Projects of China(2016YFC0402802) ; National Key Research Projects of China(2016YFC0402802) ; National Key Research Projects of China(2016YFC0402802) ; National Science Foundation of China(41172271 ; National Science Foundation of China(41172271 ; National Science Foundation of China(41172271 ; National Science Foundation of China(41172271 ; 41372323) ; 41372323) ; 41372323) ; 41372323) ; National Key Research Projects of China(2016YFC0402802) ; National Key Research Projects of China(2016YFC0402802) ; National Key Research Projects of China(2016YFC0402802) ; National Key Research Projects of China(2016YFC0402802) ; National Science Foundation of China(41172271 ; National Science Foundation of China(41172271 ; National Science Foundation of China(41172271 ; National Science Foundation of China(41172271 ; 41372323) ; 41372323) ; 41372323) ; 41372323) ; National Key Research Projects of China(2016YFC0402802) ; National Key Research Projects of China(2016YFC0402802) ; National Key Research Projects of China(2016YFC0402802) ; National Key Research Projects of China(2016YFC0402802) ; National Science Foundation of China(41172271 ; National Science Foundation of China(41172271 ; National Science Foundation of China(41172271 ; National Science Foundation of China(41172271 ; 41372323) ; 41372323) ; 41372323) ; 41372323) ; National Key Research Projects of China(2016YFC0402802) ; National Key Research Projects of China(2016YFC0402802) ; National Key Research Projects of China(2016YFC0402802) ; National Key Research Projects of China(2016YFC0402802) ; National Science Foundation of China(41172271 ; National Science Foundation of China(41172271 ; National Science Foundation of China(41172271 ; National Science Foundation of China(41172271 ; 41372323) ; 41372323) ; 41372323) ; 41372323)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/88299]
专题	地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者	Ma, Fengshan
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Gu, Hongyu,Ma, Fengshan,Guo, Jie,et al. A Spatial Mixing Model to Assess Groundwater Dynamics Affected by Mining in a Coastal Fractured Aquifer, China[J]. MINE WATER AND THE ENVIRONMENT,2018,37(2):405-420.
APA	Gu, Hongyu,Ma, Fengshan,Guo, Jie,Zhao, Haijun,Lu, Rong,&Liu, Gang.(2018).A Spatial Mixing Model to Assess Groundwater Dynamics Affected by Mining in a Coastal Fractured Aquifer, China.MINE WATER AND THE ENVIRONMENT,37(2),405-420.
MLA	Gu, Hongyu,et al."A Spatial Mixing Model to Assess Groundwater Dynamics Affected by Mining in a Coastal Fractured Aquifer, China".MINE WATER AND THE ENVIRONMENT 37.2(2018):405-420.