Hydrogeochemical and isotope characterization of geothermal waters from the Cidanau geothermal field, West Java, Indonesia

Alam, Boy Yoseph Css Syah; Itoi, Ryuichi; Taguchi, Sachihiro; Saibi, Hakim; Yamashiro, Rie

doi:10.1016/j.geothermics.2018.11.003

Cited by 17 publications

(5 citation statements)

References 11 publications

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“…Geological setting of the studied area were also identified based on the previous geologi- (Santosa, 1991;Rusmana et al, 1991;Endyana et al, 2011;Harada et al, 2014;Alam et al, 2014aAlam et al, , 2014bAlam et al, , 2019, and further surveys carried out in this study. A prominent feature in the studied area is the presence of two volcanoes, namely Karang Volcano (1750 m msl.)…”

Section: Geological Settingmentioning

confidence: 86%

Geological Trap Controlling the Residence Time of Groundwater in Assessment of Exploitation Zone for Its Sustainable Resources Case Study: The Slope of Karang Mount, Banten Province, Indonesia

Hutabarat,

Muhammad,

Iskandarsyah

et al. 2023

Indonesian J. Geosci.

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The southern slope of Mount Karang is covered by complex volcanic deposits with complicated texture and structure. The study on zone or location of water resources which would be exploited required a comprehensive hydrogeological approach. Through detailed geological mapping, spring sampling, and well drilling were carried out. Representative spring water samples were taken to be analyzed in the laboratory, and to obtain the data of physical groundwater, chemical groundwater, stable isotopes 18O (oxygen-18), and deuterium contents, as well as the age of the groundwater. In general, the groundwater facies of the studied area showed Ca, Na, KHCO3 with several sites indicating changes to CaHCO3 during the dry and rainy seasons. The synthesis results of the stable isotope 18O (oxygen-18) and deuterium contents, verified by the physical and chemical groundwater controlled by geological setting in the groundwater subbasins, show the anomaly of residence time as trapped by the normal fault in the middle of the studied area. The existing normal fault might control this anomaly of residence time of groundwater surrounding site JH1, JH9, and JH20. However, the distribution of three different water source zones occurred. All group of groundwater indicated a complex flowing with geological setting controlling the physical, chemical content, and the age of the groundwater. At last, sites JH4, JH5, and JH9 show that the zones are proper to be developed as sustainability groundwater resources. Keywords: groundwater facies, stable isotope, groundwater flow, sustainable water

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Section: Geological Settingmentioning

confidence: 86%

Geological Trap Controlling the Residence Time of Groundwater in Assessment of Exploitation Zone for Its Sustainable Resources Case Study: The Slope of Karang Mount, Banten Province, Indonesia

Hutabarat,

Muhammad,

Iskandarsyah

et al. 2023

Indonesian J. Geosci.

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“…The average TDS content in the PC (138 mg•L −1 ) was slightly higher than the world average for rivers (120 mg•L −1 ) [42]; however, it was comparable to those of the other rivers on the plateau [43]. The rivers on the plateau are mainly fed by melting water at the source areas and feature relatively low dissolved contents, while geothermal/groundwater discharge and strong evaporation usually contribute to the elevated TDS contents in rivers in their middle reaches [44,45], ultimately decreasing in the downstream through dilution [46].…”

Section: Status Of In-stream Physiochemical Parameters In the Pcmentioning

confidence: 94%

Geochemical Characterization of the River Waters in the Pumqu Catchments, Central Himalayas

Yang

Chen

Renzeng³

et al. 2022

Water

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Pumqu is the biggest river in the Qomolangma National Natural Reserve in China. It is one of the headwaters of the river Ganges and is an important international river in southern Tibet Autonomous Region (T.A.R). However, there are a lack of systematic studies on Pumqu’s geochemical properties. In this study, water samples were collected systematically from all the river catchments in different seasons in 2021, the spatiotemporal variations of the geochemical characteristics of the catchments and their controlling factors were studied, and the overall water quality of the river was also evaluated. Overall, the results showed that the water from the Pumqu catchments was slightly alkaline, with an average pH of 8.22. The number of total dissolved solids was comparable to the other rivers on the Tibetan Plateau and showed a similar variation over the year. Affected by the natural geothermal spring water discharge, the values of oxidation reduction potential at some sampling sites were negative in the wet season. Generally, Ca2+ and HCO3− were the dominant ions. Carbonate weathering was the main factor affecting the geochemical features of the studied catchments. The results of correlation analysis showed the influence of rock weathering, glacial meltwater, geothermal water discharge and riverine physicochemical processes on the trace elements. The natural geothermal water discharge was particularly responsible for the elevated Li, which appeared in some of the sampling sites and resulted in relatively high WQI values in the sites. The overall water quality of the Pumqu catchments was excellent. This study provides first-hand information on the overall spatial and temporal span of the physicochemical characteristics and water quality of all the catchments of the river Pumqu, one of the major water systems in the central Himalayas.

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“…In the hydrologic cycle, water can interact with the rock and the types of soil traverses to trace its origins using hydrochemical properties. Previous research has confirmed the Rawadanau Basin water potential from thermal and non-thermal sources from meteoric water (Syah et al, 2019;Hartanto et al, 2021Hartanto et al, , 2022. Meanwhile, hot springs produce various types of water, with heating sourced from beneath Mount Parakasak (Syah et al, 2019;Hartanto et al, 2021Hartanto et al, , 2022.…”

Section: Introductionmentioning

confidence: 90%

“…Previous research has confirmed the Rawadanau Basin water potential from thermal and non-thermal sources from meteoric water (Syah et al, 2019;Hartanto et al, 2021Hartanto et al, , 2022. Meanwhile, hot springs produce various types of water, with heating sourced from beneath Mount Parakasak (Syah et al, 2019;Hartanto et al, 2021Hartanto et al, , 2022. Springs with temperatures above 36.7°C and exceeding the average ambient area are called hot springs, and those below are considered cold springs (Alfaro & Wallace, 1994).…”

Section: Introductionmentioning

confidence: 95%

Multivariate Data Analysis to Assess Groundwater Hydrochemical Characterization in Rawadanau Basin, Banten Indonesia

Hartanto,

Lubis,

Alam

et al. 2024

MGPB

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A multivariate statistical technique of principal component analysis (PCA) and hierarchical cluster analysis (HCA) has been applied to identify and classify the various water sources that comprise the Rawadanau Basin. The data collection includes 60 samples taken during the dry (29 samples) and the rainy season (31 samples) in tropical regions. Sources of sampled water include dug wells, rivers, cold springs, and hot springs. Water chemistry measurable variables include field data (T, pH, EC), major ions (Na+, K+, Ca2+, Mg2+, Cl-, HCO3 -, SO4 2-), SiO2 , Fetotal, Mn, and stable isotopes of water (δ2H, and δ18O). The correlation of the concentration of water chemistry shows changes in the rainy season to Fetotal and Mn. Interpretation based on HCA using the dendrogram based on the chemical elements of water produces two clusters. Cluster A reflects an unconfined aquifer and bicarbonate type. Meanwhile, cluster B is a chloride type from the confined aquifer and does not change in different seasons. The PCA results show that the three-component matrix accounts for 86.12% of the data structure describing the Rawadanau Basin water sources that volcanic rocks affect and strongly correlate with Na+, K+, Ca2+, and Mg2+. PC1 has a high positive value for hydrochemical composition, indicating that lithology influences the kind of water. PC2 has a positive value for the stable isotope (δ18O and δ2H), meaning it is the main water source in Rawadanau. PC3 has a positive value for elevation and a negative for longitude, indicating a recharge area influenced by geological factors and is correlated with geothermal influences and volcanic rocks. This multivariate analysis can identify components and clusters of hydrochemical variables that have not been determined in previous studies.

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Hydrogeochemical and isotope characterization of geothermal waters from the Cidanau geothermal field, West Java, Indonesia

Cited by 17 publications

References 11 publications

Geological Trap Controlling the Residence Time of Groundwater in Assessment of Exploitation Zone for Its Sustainable Resources Case Study: The Slope of Karang Mount, Banten Province, Indonesia

Geological Trap Controlling the Residence Time of Groundwater in Assessment of Exploitation Zone for Its Sustainable Resources Case Study: The Slope of Karang Mount, Banten Province, Indonesia

Geochemical Characterization of the River Waters in the Pumqu Catchments, Central Himalayas

Multivariate Data Analysis to Assess Groundwater Hydrochemical Characterization in Rawadanau Basin, Banten Indonesia

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