Hydrochemical characteristics and geothermometry applications of thermal groundwater in northern Jinan, Shandong, China

Wang, Jiale; Jin, Menggui; Jia, Baojie; Kang, Fengxin

doi:10.1016/j.geothermics.2015.07.002

Cited by 70 publications

(52 citation statements)

References 157 publications

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“…However, their use in intermediate to low temperature systems or in carbonate-evaporitic reservoirs, as the case studied here, is usually considered inappropriate due to the range of their calibration temperatures, the chemical features of the water used for the calibration and/or the mineral phases involved in the equilibrium situations (Auqué, 1993;Chiodini et al, 1995;D'Amore and Arnórsson, 2000;Asta et al, 2010). Despite these limitations, the K-Mg and silica geothermometers and some of their calibrations have been use here as they have provided good results in similar cases (Fernández et al, 1988;Michard and Bastide, 1988;Pastorelli et al, 1999;Wang et al 2015). Moreover, as shown later, the use of the classical Giggenbach diagram (Giggenbach, 1988) indicates that Tiermas thermal waters fall on the field of the partially equilibrated waters, or near the fully equilibrate waters field, depending on the calibration considered, suggesting that the use of the cationic geothermometers, including the Na-K one, could be adequate.…”

Section: Chemical and Isotopic Geothermometersmentioning

confidence: 98%

Geochemistry, geothermometry and influence of the concentration of mobile elements in the chemical characteristics of carbonate-evaporitic thermal systems. The case of the Tiermas geothermal system (Spain)

et al. 2017

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The Tiermas low temperature geothermal system, hosted in the Paleocene-Eocene carbonates of the Jaca-Pamplona basin, has been studied to evaluate the geochemistry and the temperature of the waters in the deep reservoir. These waters are of chloridesodium type and emerge with a temperature of about 37 ºC. Two hydrogeochemical groups of waters have been distinguished: one with lower sulphate concentration and lower TDS (about 7,500 ppm) and the other with higher sulphate content and TDS values (close to 11,000 ppm). There are also slight differences in the reservoir temperature estimated for each group. These temperatures have been determined by in the vicinity of the injection well due to desiccation of the waters and, 2) carbonate dissolution and sulphate precipitation in the long term.

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Section: Chemical and Isotopic Geothermometersmentioning

confidence: 98%

Geochemistry, geothermometry and influence of the concentration of mobile elements in the chemical characteristics of carbonate-evaporitic thermal systems. The case of the Tiermas geothermal system (Spain)

et al. 2017

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“…The proportion of immobile water increases with decreasing water content. The MIM model has been applied extensively to granular soils, and may have application in the more structured materials of saprolite and weathered bedrock [ Šimunek et al ., ; Chen et al ., ; Wang et al ., ]. Fracture flow theory, which likely predominates in saprolite and weathered bedrock in many cases, has also conceived of a less mobile water that is held near the boundary and can exchange with more rapidly flowing flow [e.g., Tokunaga and Wan , ; Nimmo , ; Bodin ; Rosenbom , ; Neretnieks et al ., ].…”

Section: Introductionmentioning

confidence: 99%

Dynamic, structured heterogeneity of water isotopes inside hillslopes

Oshun

Dietrich

Dawson

et al. 2016

Water Resources Research

100

121

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Use of the stable isotopes of water (dD, d 18 O) to determine vegetative water sources, runoff paths, and residence times generally assumes that, other than shallow evaporative enrichment, the isotopic composition of precipitation is conserved as it travels through the subsurface to the stream channel. Here we follow rainfall through a thick (up to 25m) vadose zone of soil, saprolite, and weathered bedrock mostly composed of argillite, and underlying a steep (328) forested hillslope. We discover a persistent structured heterogeneity of water isotopes inside the hillslope. Summer dry season causes evaporative enrichment of the soil, but not in the saprolite and weathered bedrock. In winter, the mobile water, generated by successive rainstorms with widely varying isotopic composition, mixes in the vadose zone, elevating soil and rock moisture content, and eventually recharging the groundwater with isotopically invariant water similar to the seasonally averaged rainfall. Yet throughout the winter the less mobile winter soil and rock moisture remains relatively light, and water extracted from the interior of argillite lies well to the left of the local meteoric water line. This persistently light composition of soil and rock moisture and the deviation from average meteoric values suggest that subsurface fractionation, or the inheritance of paleo-meteoric rock moisture associated with rock uplift may lead to large enduring isotopic differences between high and low mobility water. These differences suggest that the use of water isotopes as tracers must consider the possibility of subsurface isotopic evolution and the influence of exchange with more tightly held water.

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“…Among many springs in Jinan, Baotu Spring and Black Tiger Spring are the most well-known. However, in recent years, the free outflow rate of both springs has been significantly reduced, and karst groundwater quality deterioration has occurred in the Jinan spring groups due to the over-exploitation of karst groundwater and rapid urbanization [57,58]. Meanwhile, the karst groundwater table in Jinan spring groups has progressively lowered, and some springs have even dried up.…”

Section: Study Area and Hydrogeological Conditionsmentioning

confidence: 99%

A New Perspective to Explore the Hydraulic Connectivity of Karst Aquifer System in Jinan Spring Catchment, China

Zhang

Wang

et al. 2018

Water

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Investigating the hydraulic connectivity of a complex karst aquifer system is an important research topic for sustainable operation and optimization layout of karst groundwater exploitation and recharge. However, the identification of preferential sites of recharge and exploitation is usually subject to regional hydrogeology conditions and the mechanisms of recharge and exploitation. The conventional research methods of hydraulic connectivity often have some limitations. In this study, we developed an improved grey amplitude relation model to explore the hydraulic connectivity in Jinan spring catchment and presented a quantized evaluation index water table fluctuation relation degree (WTFRD) using karst groundwater table data in Western Jinan and Jinan spring groups from 2014 to 2017. Results showed that the total WTFRD was 0.854 between Western Jinan and Jinan spring groups when the external distraction for karst groundwater table was the smallest, which was in high relation degree grade. Meanwhile, the change rules of karst groundwater table in the two sites were basically the same. Accordingly, a high connectivity occurred between the two karst aquifers from a statistical perspective, and further illustrated that Western Jinan could be selected as preferential experiment sites. A comprehensive case in Jinan spring catchment indicated that the WTFRD provided a preliminary idea to investigate hydraulic connectivity quantitatively. This method could be considered as a pre-study of the conventional experiments to form a high-efficiency and low-cost combined method, which has great potential and merits further study.

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Hydrochemical characteristics and geothermometry applications of thermal groundwater in northern Jinan, Shandong, China

Cited by 70 publications

References 157 publications

Geochemistry, geothermometry and influence of the concentration of mobile elements in the chemical characteristics of carbonate-evaporitic thermal systems. The case of the Tiermas geothermal system (Spain)

Geochemistry, geothermometry and influence of the concentration of mobile elements in the chemical characteristics of carbonate-evaporitic thermal systems. The case of the Tiermas geothermal system (Spain)

Dynamic, structured heterogeneity of water isotopes inside hillslopes

A New Perspective to Explore the Hydraulic Connectivity of Karst Aquifer System in Jinan Spring Catchment, China

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