Overview of the petrophysical and geochemical properties of the Ungaran Quarternary Volcano in relation to geothermal potential

Yudiantoro, Dwi Fitri; Ratnaningsih, Dyah Rini; Pramudiohadi, Eko Widi; Kurnianto, A G B; Alfian, D G; Arhananta,; Abdurrahman, M

doi:10.1088/1755-1315/212/1/012055

Cited by 3 publications

(5 citation statements)

References 2 publications

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“…The abundance of these phenocryst minerals is characteristic of island arcs. So, based on these characteristics, the volcanic rocks in the study area are calc-alkaline, formed on island arcs [7,23,24]. So it can be concluded that the fragments from Bethok maar are volcanic rocks from Lamongan Volcano which were formed in an island arc environment with a calc-alkaline composition during the Quaternary period of the volcanic arc on the island of Java.…”

Section: Magma Affinitymentioning

confidence: 99%

Characteristics of pyroclastic deposits and evolution of Maar Bethok Lamongan Volcano Tiris Probolinggo East Java Indonesia

Sutarto,

Yudiantoro,

Suharwanto

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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The Lamongan Volcano Complex has a very different character from the Bromo and Argopuro Volcano groups. Lamongan Volcano has 37 volcanic cones and 27 maars (ranu). This volcano is quarter-old and occupies part of East Java Province. Maar Bethok is composed of lava and intercalation between pyroclastic deposits from phreatomagmatic and magmatic falls that still need to be firmly consolidated. These pyroclastic deposits characterize a strombolian eruption with more lava dome or crater wall material ejected. The rocks that make up the Bethok maar include olivine-pyroxene basalt lava and pyroclastic fall deposits with fragments of olivine basalt and basalt composition. The evolution of the Bethok maar eruption started from magma with an alkaline composition and ended with a more acidic composition. The magmatism of Bethok maar has an island arc calc-alkaline affinity.

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Section: Magma Affinitymentioning

confidence: 99%

Characteristics of pyroclastic deposits and evolution of Maar Bethok Lamongan Volcano Tiris Probolinggo East Java Indonesia

Sutarto,

Yudiantoro,

Suharwanto

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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“…The presence of pyroxene, hornblende, biotite, and opaque minerals indicates that the volcanic rocks in the study area were enriched with iron during the magma differentiation process. Based on these characteristics, petrographically the volcanic rocks in the study area have a calc-alkali composition and this Dieng volcano is a Quaternary volcano which is in a row with the Ungaran volcano in Central Java (Yudiantoro et al, 2018).…”

Section: Hornblende-biotite Andesitementioning

confidence: 99%

Evolution Magmatism of Nagasari Volcano Dieng, Central Java, Indonesia

Yudiantoro

Haty

Pambudi

et al. 2022

J. Geoscience Eng. Environ. Technol.

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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.

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“…Volcano activity is activated by the convergent movement of the Eurasian plate versa Hindi-Australian plate [3], Based on the map of the Ungaran sheet [4], the stratigraphy of the research area consists of two units, the Youngest and Youngest Ungaran Volcanic Output unit. The youngest Ungaran unit consists of lava and andesite lava flows composed of hornblende and augite minerals [1]. Then for the Young Volcano Unit consists of andesite hornblende augite lava flow [5][1] ( Figure 2).…”

Section: Regional Geologymentioning

confidence: 99%

“…Then for the Young Volcano Unit consists of andesite hornblende augite lava flow [5][1] ( Figure 2). The regional geological structure of the study area consists of North Northwest-South Southeast formed by contact of rock units and Northeast-Southwest which is formed by the flow of lava tongue [1].…”

Section: Regional Geologymentioning

confidence: 99%

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Hydrostructure of Groundwater Manifestation of Gedongsongo Geothermal Ungaran, Semarang, Central Java, Indonesia

Hisan

Jasaputra

Bernaldo

et al. 2020

JEMT

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Groundwater is an important element of the hydrological cycle in geothermal systems. The geological structure of the Plio-Pleistocene volcano and different lithological variations affect the type and response of groundwater to rocks. The research area is located around the Gedongsongo Temple complex, Mount Ungaran, Central Java. Based on the field check location, there are three variations of lithology, the first lithology is a breccia with andesite, basalt, and pyroclastic fragments. The NW-SE-oriented geological structure is flattened to the right slip fault which is the fracture aquifer system on the Southern Slope of Mount Ungaran. In the research area, there is an anomaly in the form of deflection of flow direction pattern caused by structural control factor in the form of fracture, the fracture which becomes the fluid channel media is a tension joint on the shear zone with Northwest strike with dip direction toward Northeast which has NW-SE orientation of right slip fault.

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Overview of the petrophysical and geochemical properties of the Ungaran Quarternary Volcano in relation to geothermal potential

Cited by 3 publications

References 2 publications

Characteristics of pyroclastic deposits and evolution of Maar Bethok Lamongan Volcano Tiris Probolinggo East Java Indonesia

Characteristics of pyroclastic deposits and evolution of Maar Bethok Lamongan Volcano Tiris Probolinggo East Java Indonesia

Evolution Magmatism of Nagasari Volcano Dieng, Central Java, Indonesia

Hydrostructure of Groundwater Manifestation of Gedongsongo Geothermal Ungaran, Semarang, Central Java, Indonesia

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