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All Journal Jurnal Ilmiah MTG Journal of Geoscience, Engineering, Environment, and Technology Jurnal Ilmiah Geologi pangea Jurnal Ilmiah Geomatika
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Geology Engineering Department, Volcanology, UPN Veteran Yogyakarta, Indonesia.
Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Energy Engineering Environmental Science Physics

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Journal : Journal of Geoscience, Engineering, Environment, and Technology

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Evolution Magmatism of Nagasari Volcano Dieng, Central Java, Indonesia Dwi Fitri Yudiantoro; Intan Paramita Haty; Setia Pambudi; Elisabet Magdalena; Armala Putri; I. Takashima; M. Abdurrachman
Journal of Geoscience, Engineering, Environment, and Technology Vol. 7 No. 4 (2022): JGEET Vol 07 No 04 : December (2022)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2022.7.4.10084

Abstract

Nagasari Volcano, part of the Dieng volcanic complex, is one of the unique volcanoes in Central Java. Around this volcano grow eruption craters, volcanic cones, and pyroclastic flow ridges. There were several 14 eruption centers around Mount Nagasari, so it is necessary to know the development of magmatism evolution. The aims of the research to determine the evolutionary development of magmatism. The methodology used is geological mapping and petrographic analysis. The observations of rocks found in the study area include andesite lava, lapilli-tuff, fallen pyroclastic breccias, and flow pyroclastic breccias. Meanwhile, geological mapping and petrographic observations of volcanic rock samples show that the evolution of magmatism in the study area from the oldest to the youngest is basaltic magma that formed Prau Volcano in the pre-caldera period. On the other hand, magmatism in the post-caldera I period was of the type of pyroxene andesite forming the Gembol to Jimat Volcano group. In contrast, in the post-caldera II period, the hornblende-biotite andesite group formed the Dieng Kulon to Kendil group.
A Hydrogeochemistry Analysis for Quality Determination of Shallow Karstic Groundwater in Western Tuban, Indonesia Pambudi, Setia; Sulistijo, Budi; Iskandar, Irwan; Yudiantoro, Dwi Fitri; Haty, Intan Paramita; Ekasara, Adam Raka; Afrilita; Yoni, Dian Rahma; Pratomo, Septyo Uji
Journal of Geoscience, Engineering, Environment, and Technology Vol. 9 No. 04 (2024): JGEET Vol 09 No 04 : December (2024)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2024.9.04.15926

Abstract

Groundwater hydrogeochemistry and water quality assessment have been conducted in western Tuban, Indonesia, which is characterized by its karstic features based on physicochemical parameters (pH, electric conductivity, total dissolved solids, hardness, Ca2+, Mg2+, Fe3+, Mn2+, K+, Na+, Li+, NH4+, HCO3-, Cl-, SO42-, NO2-, and NO3-) from 25 shallow groundwater samples. The Piper diagram implies the groundwater is of HCO3–Ca+Mg type with some Na+K–SO4+Cl type meaning that the groundwater in Western Tuban is influenced by the silicate minerals weathering, the dissolution of carbonate lithology, and seawater intrusion. Durov diagram shows that the evolution of groundwater is influenced by ion exchange with clay minerals and by mixing with seawater. The Gibbs diagram indicates that the change in the chemistry and quality of groundwater is caused by a dominance of rock-water interaction in the Western Tuban. The water quality assessment based on the USSL and Wilcox diagrams indicates a high level of salinity and relatively low sodium, meaning that the suggested crops should have good salt tolerance, and the cultivated soil should still be able to handle the relatively low sodium level for irrigation.
Co-Authors Afrilita Afrilita, Afrilita Afrilta Afrilita Arifudin Idrus Armala Putri Budi Sulistijo Budi Sulistijo Dian Rahma Yoni, S.T., M.T. Dwi Fitri Yudiantoro Ekasara, Adam Raka Elisabet Magdalena I. Takashima Idarwati Idarwati Intan Paramita Haty Intan Paramita Haty Intan Paramita Haty Intan Paramita Haty Irwan Irwan M. Abdurrachman Pratomo, Septyo Uji Yoni, Dian Rahma