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All Journal IJOG : Indonesian Journal on Geoscience Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan JIPF (Jurnal Ilmu Pendidikan Fisika) Angkasa: Jurnal Ilmiah Bidang Teknologi KURVATEK International Journal of Hydrological and Environmental for Sustainability Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII Jurnal Kemitraan, Kewirausahaan dan Pengabdian Masyarakat
Oky Sugarbo
Institut Teknologi Nasional Yogyakarta
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Social Sciences Transportation Other

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Journal : KURVATEK

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GUNUNG API PURBA CANDISARI : IDENTIFIKASI AWAL, KARAKTERISASI PEMBENTUKAN, POSISI STRATIGRAFI DAN POTENSI PEMANFAATANNYA Oky Sugarbo
KURVATEK Vol 6 No 1 (2021): April 2021
Publisher : Institut Teknologi Nasional Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33579/krvtk.v6i1.2254

Abstract

Abstract In the Southern Mountain Zone, many volcanic rocks that products of the Tertiary Volcanic Arc are exposed. In this zone, a lot of research has been carried out, but research about ancient volcanoes and the center of the ancient eruption has not been carried out thoroughly, so it is necessary to carry out further research related to the ancient volcanism of the Southern Mountains. The purpose of this research is to identify the preliminary study about existence of ancient volcanoes based on field and laboratory data with the aim of knowing the character, genesis, stratigraphic position and the potential of ancient volcanoes that produce many volcanic rocks. The research method used is a surface mapping method that supported by laboratory data such as petrographic and rock geochemistry using X-Ray Flourecence. In the study area, there were indications of ancient volcanoes based on image data, lithology, stratigraphy, petrography and geochemistry with facies association in the upper proximal facies. Stratigraphically, the Ancient Volcanic Rocks of Canndisari are under the Semilir Formation but not part of the Kebo-Butak Formation. The abundance of volcanic rocks can be used as class C mining materials. In addition, it is necessary to carry out further studies on the existence of hydrothermal alteration in the research area which may be used by local communities because altered rocks have economic value. Keywords: lava, genesis, volcanism, ancient, Candisari.
PERILAKU PALEOVOLKANO SEMADUM BERDASARKAN KARAKTER GEOKIMIA DAN PETROLOGI, KECAMATAN TUJUH BELAS, KABUPATEN BENGKAYANG, PROVINSI KALIMANTAN BARAT Fuad Nur Hussein; Hill Gendoet Hartono; Oky Sugarbo; I Gde Sukadana
KURVATEK Vol 6 No 2 (2021): November 2021
Publisher : Institut Teknologi Nasional Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33579/krvtk.v6i2.2642

Abstract

The phenomenon of the existence of the Semadum volcano fossil located in Pisak Village, Tujuhbelas District, Bengkayang Regency, West Kalimantan has a Pliocene-Plistocene age with a clear cone-shaped morphology. The purpose of this study was to determine the behavior of the Semadum volcano in relation to the character of the magma, the pattern and typical eruptions and distribution of its products. The methodology used is field activity and geochemical analysis using X-Ray Fluorescence (XRF), Micro X-ray fluorescence (µXRF) and petrography. The Semadum volcano is geochemically composed of basaltic products, basaltic trachy andesite and dacite with basal to dacitic magma character which has a calc-alkaline affinity related to the subduction process, making Semadum volcano has 5 periods of effusive and explosive eruption activity with the Strombolian- Vulcanian type eruption with an eruption strength ranging from VEI < 2 makes the distribution of its product not too wide, it only centers on the body of the volcano which is the construction phase. Keywords: Volcano, Geochemistry, Petrology, Bengkayang, West Kalimantan
POTENSI NIKEL LATERIT PADA PROSPEK PUU NUNU, KECAMATAN KABAENA SELATAN, KABUPATEN BOMBANA, PROVINSI SULAWESI TENGGARA Qoyyibi, Dava Saliham; Sugarbo, Oky; Hartono, Hill Gendoet
KURVATEK Vol 11 No 1 (2026): Energy Management and Sustainable Environment
Publisher : Institut Teknologi Nasional Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33579/krvtk.v11i1.5807

Abstract

Nickel occurrences in Indonesia are generally found as lateritic nickel deposits derived from the residual weathering of bedrock from ophiolite or ultramafic complexes. Sulawesi Island and the surrounding smaller islands possess significant nickel potential due to their complex geological setting. Therefore, a geological study is necessary to assess this potential by conducting surface mapping. The study area is located in Southeast Sulawesi and falls within the mining business license (IUP) area of PT. Tambang Bumi Sulawesi. This research aims to carry out surface geological mapping, with the objective of identifying geological conditions, including geomorphology, stratigraphy, geological structures, and resource estimation in areas with lateritic nickel potential. The results of the study indicate that the geomorphological units consist of strongly undulating-denudational hills and weakly to strongly undulating-denudational areas. The stratigraphy of the study area, from oldest to youngest, comprises lherzolite and hornblende pyroxenite of the Ultramafic Complex, which are unconformably overlain by mica schist and marble of the Pompangeo Complex. The geological structure is characterized by a sinistral (left-lateral) left slip fault trending northwest-southeast. Resource estimation using the ordinary kriging method yielded a total measured resource volume of 518,855 m³, with an estimated tonnage of 778,283 tons in the lateritic potential area.
Co-Authors Al Hussein Flowers Rizqi Anggi Deliana Arjun Sadewa BAYU AJI SETIYAWAN Eka Nur Hayati Eko Wahyu Hidayat, Eko Wahyu Ev Budiadi Evaristus Budiadi Fistina Audrey, Vivi Fuad Nur Hussein Helmi, Hurien Hill Gendoet Hartono I Gde Sukadana Ignatius Adi Prabowo Laurens, Hannaesa Masagus Febriansyah Mayang Pitaloka Muhammad Afifal Hidayah Muhammad Alif Pratama Murkute, Yogesh Nava Nelandri Tamaela Nopry Sulaiman Okki Verdiansyah Panse, Vishal R. Qoyyibi, Dava Saliham Rizqi Prastowo SANDI KURNIAWAN Setiawan, Nanda Juli Setyo Pambudi Theophilia Listyani Retno Astuti Wijaya, Naufal Arya