Table 2 - uploaded by Mohamad Sapari dwi Hadian
Content may be subject to copyright.
Source publication
Water is a very important component for the survival of living things. Groundwater is water that has better quality compared to other water types, so groundwater is widely used to meet the needs of clean water. The research area is located on the eastern slope of Mount Ciremai which is a volcanic area that has great groundwater potential, it is see...
Contexts in source publication
Context 1
... element analyzed is Na, K, Ca, Mg, HCO 3 , SO 4 and Cl. To convert ion concentration in ppm unit into unit of meq/L used by dividing ion concentration in ppm with equivalents number of each elements (Table 2). The data of cation-anion concentration in meq/L unit then validated by ion equilibrium equation, valid data if error balance (CBE) does not exceed 10%. ...
Context 2
... element analyzed is Na, K, Ca, Mg, HCO 3 , SO 4 and Cl. To convert ion concentration in ppm unit into unit of meq/L used by dividing ion concentration in ppm with equivalents number of each elements (Table 2). The data of cation-anion concentration in meq/L unit then validated by ion equilibrium equation, valid data if error balance (CBE) does not exceed 10%. ...
Similar publications
Thermal groundwater is of great economic and social importance. Tunisia is characterized by its hot groundwater spread over several regions. Hydrothermal resources need further investigation and diagnosis to determine their local, Mediterranean, or regional thermal sources and flow regimes. This study aims to differentiate origin and heating proces...
The paper presents the results of studies (2017 and 2019) of the physicochemical characteristics of the thermomineral waters of the Daginsky field, obtained before the reconstruction of the springs in 2019–2020. The obtained data were compared with the data from the studies of previous years (1958–2014) in order to study the dynamics of the measure...
The thermal waters of the Island of Ischia, an active volcano located in Southern Italy, are widely used for supplying numerous spas. Groundwater withdrawals occur mainly through wells in the coastal strip. This study explores the impact of withdrawals on the quality of the waters used in thermal facilities, which is required to be constant in term...
A comparative study is conducted to understand the hydrochemistry of Beas and Parbati valley Kullu District, Himachal Pradesh, India. Twenty hot spring, sixteen cold spring and twenty four groundwater samples were collected and analysed for physico-chemical parameters. Hot spring samples were slightly acidic to alkaline in nature whereas cold sprin...
We investigate the degree of hydraulic interconnection between the different (regional to local) groundwater compartments with respect to the choice of boundary conditions and their impact onto the groundwater safety beneath the urban centre of Berlin, capital city of Germany. To this end, we carry out a systematic study based on 3-D hydrothermal m...
Citations
... The volcanic-shaped land affects the existence of unconfined groundwater from its hydrogeology conditions (Aiuppa et al., 2003). Unconfined groundwater interacts with volcano activities (Favier et al., 2008), causing the frequent presence on the volcano-shaped land, which is usually fresh (Dianardi et al., 2018). Unconfined groundwater will be essential for Bandung people (Maryati et al., 2022), especially in the Northern area. ...
The Northern Bandung area covers two landforms, namely volcano and structural landforms. Unconfined groundwater has become the water source for local people’s daily needs in both landforms. It is necessary to map the potential unconfined groundwater for both volcano and structural landforms due to the significant role of springs for the local people living in those areas. This research aims to map the unconfined groundwater on the volcano and structural landforms. This study employed the approaches of Analytical Hierarchy Process (AHP), Geographic Information System (GIS), and Remote Sensing (RS) using the variables of lineament density, rainfall, slope, and Topographic Wetness Index (TWI), hydrogeology, drainage density, and land use. The result shows that each variable has the Consistency Ratio (CR) below 0,1, resulting in consistent research variables and appropriate for discussion. The classification of the potential groundwater is divided into three categories: low, medium, and high. The survey validation finds that 147 springs spread at 86 high lands, 55 medium lands, and six lowlands. This model can be an alternative to map the potential unconfined groundwater in both volcano and structural areas.
... The mapping and collecting geological and hydrogeological data is a crucial step in characterizing the features of the groundwater system (Dianardi et al., 2018;Lo et al., 2021). Collecting of hydrogeological features of the area was completed in the rainy season, and gather 24 springs observation. ...
The study area is located in the Lido Catchment Area (LCA), which is situated between two distinct volcanic slopes and not many discovered especially in Indonesia. Springs on the volcano's slopes are widely used for domestic, irrigation, and industry water use. Investigating the characteristics of aquifers and springs is essential to ensure groundwater sustainability by providing a robust geological framework. Geological and morphometric analysis at LCA is the basis of important information. We applied a comprehensive geological and morphometric analysis to obtain detailed information about the aquifer. This study aimed to determine the characteristics of aquifers in pyroclastic rocks and their relationship to the formation of springs. From the research conducted, the characteristic of water can be distinguished based on the geological conditions of its constituents. Hydrogeology setting is distinct into four categories aquifer: Highly Productive Aquifer, Locally Productive Aquifer, Moderately Productive Aquifer, and an extremely rare groundwater region. The results of the morphometric analysis show different value variations based on rock formations related to the processes of spring occurrence. There are 6 different lithological characteristics in the study area: polymict breccia, monomict breccia, lapilli, lapilli tuff, coarse tuff, and fine tuff. From the lithology variations obtained, breccia, lapilli, and coarse tuff can play a good role as aquifers. Thin section analysis of the rock shows the characteristics of the alteration minerals. Geological correlations and groundwater systems in the study area show groups of superficial, mixed, and alteration springs. The system of water flows in aquifers through inter-grains or rock fractures. The types of springs in LCA are dominated by depression and fracture types. These results are fundamental information for understanding hydrogeological systems. Understanding the qualities of aquifers and spring characteristics properly may aid in the construction of more effective studies in the future.
We investigate the complex conductivity of 32 volcanic rock samples from two stratovolcanoes, La Soufrière Volcano (Guadeloupe Island, Caribbean) and Papandayan volcano (Java Island, Indonesia). These stratovolcanoes are characterized by high degrees of kaolinite-related alteration associated with the upwelling of acidic ground waters as well as the formation of smectite-rich clay caps. Our goal is to assess the dependence of two geoelectrical properties, the electrical conductivity and normalized chargeability, on the conductivity of the pore water and the Cation Exchange Capacity (CEC) for volcanic rocks at near-neutral pH conditions. An alteration index based on CEC is built for both smectite- and kaolinite-rich zones. The data are discussed in the context of a previously acquired experimental dataset based on samples collected from shield volcanoes in Hawaii. We show that all the core samples display the same trends in their petrophysical geoelectrical properties whatever the type of volcanoes. Surface conductivity and normalized chargeability are strongly controlled by the CEC of the material and the bulk tortuosity of the pore space (product of the formation factor by the porosity). This implies in turn that the conductivity and the normalized chargeability are controlled by rock alteration in the same way as long as surface conductivity dominates the bulk conductivity contribution, which is salinity and pH dependent (both being interrelated in acidic pore waters). These petrophysical results are then applied to the interpretation of a 3D induced polarization survey performed at Papandayan stratovolcano in Indonesia. The tomograms are used to image the alteration of the volcanic edifice and we conclude that surface conduction is non-negligible in these volcanoes. Only above a pore water conductivity higher than 10 S m⁻¹ at 25 °C) the bulk conductivity dominates the surface conductivity associated with alteration.
