Two-way cluster analysis of geochemical data to constrain spring source waters

Swanson, Susan; Bahr, Jean M.; Schwar, Michael T.; Potter, Kenneth W.

doi:10.1016/s0009-2541(01)00316-3

Cited by 83 publications

(39 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cluster analysis (hierarchical clustering; Davis 1986), on the other hand, is a useful way of objectively organizing a large data set into groups on the basis of a given set of characteristics. This can ultimately assist in the recognition of potentially meaningful patterns (Swanson et al 2001).…”

Section: Cluster Analysismentioning

confidence: 99%

Hydrochemical analysis and evaluation of groundwater quality in El Eulma area, Algeria

Belkhiri

Mouni

2012

Appl Water Sci

View full text Add to dashboard Cite

The groundwater sources in the El Elma plain have been evaluated for their chemical composition and suitability for irrigation uses. Cluster analysis in Q-mode resulted in three major water types (HCO 3 --Ca-2? dominated, Cl --HCO 3 --Ca 2? -dominated and Cl --Ca 2? -Na ? -dominated) for the groundwater. The US salinity diagram illustrates that most of the groundwater samples fall in C3S1 quality with high salinity hazard and low sodium hazard. Based on RSC values, all the samples of the three groups had values less than 1.25 and were good for irrigation.

show abstract

Section: Cluster Analysismentioning

confidence: 99%

Hydrochemical analysis and evaluation of groundwater quality in El Eulma area, Algeria

Belkhiri

Mouni

2012

Appl Water Sci

View full text Add to dashboard Cite

show abstract

“…lines are fitted using lOWess. age estimates (yr) are from multiple published sources (elliott 1990, 2000, elliott et al 1999, Manga 1999, edmunds and smedley 2000, Iwatsuki et al 2001, Katz et al 2001, Plummer et al 2001, 2000, swanson et al 2001, swarzenski et al 2001, dowling et al 2003, Chen et al 2003, sturchio et al 2004). 19 Tg of C to surface waters annually.…”

Section: Methodsmentioning

confidence: 99%

Size, age, renewal, and discharge of groundwater carbon

Downing

Striegl

2018

Inland Waters

View full text Add to dashboard Cite

Groundwater carbon (C) supply to lakes and streams is important to understanding the role of inland waters in global and regional cycles and in the functioning of aquatic ecosystems. We provide new estimates of the size and discharge of the groundwater C pool using data from a broad survey of groundwater C, information on the depth distribution of groundwater, and data on groundwater age. About 0.25 × 10 6 km 3 of the 8 × 10 6 km 3 of groundwater resource is within 100 m of the surface and 4.2 × 10 6 km 3 is above 2000 m. Ages show an average groundwater turnover time of 10 yr at 25 m, 350 yr at 100 m, increasing to about 100 000 yr at 600 m. Global groundwater discharge is 16 000 km 3 yr −1; >16% of precipitation passes through groundwater. Groundwater dissolved organic C (DOC) can be high in shallow groundwater but stabilizes at ~2-4 mg L −1 at 100 m. Average groundwater dissolved inorganic C (DIC) is ~30-43 mg L −1. Groundwater C content to 2000 m is ~145 Pg, about the same as all marine sediments and about one-sixth that of the surface ocean. Groundwater C discharge to continental waters is 0.68 Pg yr −1 , or 3.4 times that estimated from river base-flow and submarine groundwater discharge. This discharge is 68 times previous estimates, implying a total C flux from land of 3.6 Pg yr −1 ; 80% of discharge occurs from above 40 m and 99% from the upper 100 m.

show abstract

“…Cluster analysis, factor analysis (FA), and principal components analysis (PCA) have been successfully used in characterizing geochemical data and the hydrochemical evolution of the groundwater [9,[12][13][14][15][16]. Among these, cluster analysis is effective in charactering the geochemical properties of the groundwater [17] and PCA method is commonly used in identifying the hydrochemical processes [18,19]. Factor analysis (FA) can be used to identify the major factors that controlled the geochemical process [20,21].…”

Section: I I I I I Ia Ia Ia I I I I I I I Ia Ia I I I Ia I I I I Iamentioning

confidence: 99%

Hydrogeochemical Characteristics and Evolution of Hot Springs in Eastern Tibetan Plateau Geothermal Belt, Western China: Insight from Multivariate Statistical Analysis

Shi

Wang

et al. 2017

Geofluids

View full text Add to dashboard Cite

The eastern Tibetan Plateau geothermal belt is one of the important medium-high temperature geothermal belts in China. However, less work has been done on the hydrochemical characteristic and its geological origin. Understanding the chemical characteristics and the hydrochemical evolution processes is important in evaluating the geothermal energy potential in this area. In the present study, we discussed the hydrochemical properties and their origins of 39 hot springs located in the eastern Tibetan Plateau geothermal belt (Kangding-Litang-Batang geothermal belt). Cluster analysis and factor analysis are employed to character the hydrochemical properties of hot springs in different fault zones and the possible hydrochemical evolution processes of these hot springs. Our study shows that the hot springs can be divided into three groups based on their locations. The hot springs in the first group mainly originate from the volcanic rock and the springs in the second group originate from the metamorphic rock while the springs in the third group originate from the result of mixture of shallow water. Water-rock interaction, cation exchange, and the water environment are the three dominant factors that control the hydrochemical evolution process in the eastern Tibetan Plateau. These results are also in well agreement with the isotopic and chemical analysis.

show abstract

Two-way cluster analysis of geochemical data to constrain spring source waters

Cited by 83 publications

References 9 publications

Hydrochemical analysis and evaluation of groundwater quality in El Eulma area, Algeria

Hydrochemical analysis and evaluation of groundwater quality in El Eulma area, Algeria

Size, age, renewal, and discharge of groundwater carbon

Hydrogeochemical Characteristics and Evolution of Hot Springs in Eastern Tibetan Plateau Geothermal Belt, Western China: Insight from Multivariate Statistical Analysis

Contact Info

Product

Resources

About