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All Journal 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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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
Investigation of Aquifer Zone in Tambakromo Village, Ponjong Subdistrict, Gunung Kidul Regency, Yogyakarta, Indonesia Al Hussein Flowers Rizqi; Oky Sugarbo
JIPF (Jurnal Ilmu Pendidikan Fisika) Vol 6, No 3 (2021): September 2021
Publisher : STKIP Singkawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26737/jipf.v6i3.2086

Abstract

The presence of surface water is always being a primary issue in Gunung Kidul regency. An aquifer investigation would support groundwater exploration. The research area is located in Tambakromo village, Ponjong subdistrict, Gunung Kidul Regency, Daerah Istimewa Yogyakarta Province. The aim of this research is about geological and subsurface conditions based on geological data and geoelectrical resistivity methods. By resistivity value interpretation, the position, depth, and thickness of aquifer could be determined. The purpose of this research is to identification of geological conditions that supported being aquifer rock. The method in this research is used geological mapping combined with petrographic analysis. The geophysics method is used to identification of aquifer in research area. Three locations were selected to acquisition geoelectrical resistivity survey. In Grogol village, there is no aquifer based on resistivity values of more than 10000 ohmmeters (andesitic breccia). An akuifuge is interpreted there in andesitic breccia instead of the presence of aquifer. The tuffaceous is interpreted as lapillistone that contained the glass with resistivity value of 43.63 and 340.11 ohmmeters. The Garon and Sumberejo village have aquifer at depth of 50 to 80 meters with a thickness of 13 to 70 meters. The type of aquifer in both area is included an unconfined aquifer, specifically located in between the limestone rock layer and andesitic breccia. By regional stratigraphic correlation, tuffaceous lapillistone is interpreted as derived from Semilir Formation. In addition, the presence of aquifer in research area could recommend for local people and government to reduce the drought disaster.
Geoelectrical resistivity survey to determine sliding surface of landslides prone area case study in Ponjong subdistrict Gunung Kidul regency Indonesia Al Hussein Flowers Rizqi; Oky Sugarbo; Mayang Pitaloka
Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 14, No 1 (2022): Mei
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1401.981 KB) | DOI: 10.28989/angkasa.v14i1.1208

Abstract

The research area is located in Ponjong Subdistrict, Gunung Kidul Regency. Ponjong area specific at Tambakromo village is one of potential in landslides disaster since 2011. The outspread information about landslide and mitigation should be done in research area. The aim of this research is to get the subsurface condition and determine of landslide surface based on geoelectrical resistivity in Tambakromo area, Ponjong Subdistrict, Gunung Kidul regency. The method of this research is used geoelectrical survey by using Dipole - dipole configuration. The result of this research is the lithology of sliding surface is claystone – fine tuffaceous claystone with resistivity value of 29.9 ohmmeter based on Dipole – dipole subsurface cross section at Grogol village. The sliding surface could be found at 5 metres to 20 metres underground. At Sumberejo village, based on dipole-dipole subsurface the lithology of sliding surface is claystone – fine tuffaceous claystone with resistivity value of 6.18 to 29.9 ohmmeter at depth of 20 to 25 metres. Based on the regional stratigraphy correlation showed that the claystone or tuffaceous claystone is included in Semilir Formation. This research should be able to held for local government to proved landslide mitigation in research area. 
Karakteristik Batuan Ultramafik Pada Fragmen piroklastika di Gunung Api Purba Mangunan - Imogiri, Yogyakarta Okki Verdiansyah; Oky Sugarbo; Masagus Febriansyah
Retii Prosiding Seminar Nasional ReTII ke-13 2018
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

 ABSTRAKPenelitian terletak pada bagian dari  gunung api purba Mangunan-Imogiri, yang berada bagian batas dari dataran rendah Yogyakarta dan Tinggian Gunung Kidul. Pada daerah ini hadir kompleks batuan gunung api monogenik yang sejajar dengan sesar opak, dengan mengeluarkan material eksplosif berupa breksi andesit piroklastika. Batuan piroklastika merupakan hasil dari rombakan material di dalam, atau sekitar pusat erupsi. Penelitian ini sebagai pembuka wawasan, mengenai hipotesa basement Yogyakarta pada sisi Timur. Penelitian menggunakan metode pemetaan rekonaisan di lapangan dan diperkuat dengan data petrografi, pada objek fragmen batuan piroklastika. Singkapan batuan berupa piroklastika jatuhan dengan fragmen didominasi oleh fragmen basalt dan andesit basaltik, namun memiliki sedikit fragmen ultramafik. Fragmen ultramafik sebagian telah terdiagenesa paska deposisi piroklastika ini dengan diikuti veinlet kalsedon kalsit, dan teroksidasi di sekitarnya. Batuan ultramafik diklasifikasikan sebagai piroksenit dengan tekstur allotriomorfik granular, kristal berukuran 0.8 - 6 mm, dengan komposisi berupa klinopiroksen (70.1%), ortopiroksen (2.3%), biotit (0.1%) yang diikuti mineral sekunder berupa klorit (11.5%), kalsit dan oksida besi (16.1%) menggantikan material pada celah antar kristal dan retakan batuan. Tipe batuan ultramafik pada daerah Imogiri diinterpretasi sebagai bagian dari mantel yang terbawa oleh magma basaltik pembentuk gunung api Mangunan-Imogiri. Penelitian ini diharapkan dapat menjadi masukan mengenai magmatisme atau kemungkinan tipe batuan dasar di sekitar Yogyakarta khususnya bagian Opak, namun masih memerlukan penelitian lapangan dan laboratorium penunjang lebih detil untuk mengetahui karakteristik batuan dasarnya. Kata kunci : Yogyakarta, gunung api, ultramafik, mineral, pegunungan selatan.   ABSTRACT The study is located in part of the ancient volcano Mangunan-Imogiri, which is located at the boundary of the Yogyakarta lowlands and Gunung Kidul highlands. In this area there is a monogenic volcanic rock complex parallel to the opaque fault, by removing explosive material in the form of pyroclastic andesite breccia. Pyroclastic rock is the result of the destruction of material inside, or around the eruption center. This research is an insight into the basement hypothesis of Yogyakarta on the East side. The study used reconnaissance mapping method in the field and reinforced with petrographic data, on pyroclastic rock fragments. Rock outcrops in the form of falling pyroclastic with fragments were dominated by basaltic andesite basalt fragments, but had few ultramafic fragments. The ultramafic fragment is partially diageneated after this pyroclastic deposition with calcite veinlet followed, and oxidized in the vicinity. Ultramafic rocks are classified as pyroxenite with granular allotriomorphic texture, crystals measuring 0.8 - 6 mm, with compositions in the form of klinopyroxene (70.1%), orthopyroxene (2.3%), biotite (0.1%) followed by secondary minerals in the form of chlorite (11.5%), calcite and Iron oxide (16.1%) replaces material in the inter-crystalline gap and rock cracks. The type of ultramafic rock in the Imogiri region is interpreted as part of the mantle carried by basaltic magma forming the Mangunan-Imogiri volcano. This research is expected to be an input on magmatism or possible types of bedrock around Yogyakarta, especially the Opak section, but it still requires detailed field research and supporting laboratories to determine the characteristics of the bedrock. Keyword : Yogyakarta, volcano,, ultramafic, mineral, southern mountain.
Tinjauan Awal Hubungan Vulkanostratigrafi Dengan Tipe Mineralisasi Daerah Kokap, Kulon Progo, Yogyakarta Oky Sugarbo
Retii Prosiding Seminar Nasional ReTII Ke-14 2019
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

ABSTRACT The Kulonprogo Mountains are mostly Tertiary volcano products that form a high morphology located on the western side of Yogyakarta. Each volcano generally forms volcanic facies and is followed by hypogeneous follow-up processes such as the hydrothermal alteration process that forms ore minerals. This research is a preliminary study to see the relationship between volcanic stratigraphy with the existence of hydrothermal processes and the type of mineralization in the southern Kulon Progo Mountains. The method that used is a qualitative analysis that combines morphology data and data from some previous study so that a comprehensive conclusion can be drawn. The results showed the presence of mineralization with epithermal type and indicate the existence of porphyry systems that associate with volcanic rocks that characterize the central to proximal facies. In the study area there is an indication of the relationship between volcanic stratigraphy and the presence of mineralization types. Mineral deposits that are located far from the indication of the eruption center tend to be of low sulfidation type while approaching the eruption center, the type of mineralization leads to high sulfidation. Mineralization systems in the Hargoejo, Gunung Agung and Kalirejo areas are interpreted to follow the Ijo Crown system while the Sangon Region mineralization system follows the Kukusan Hummock system. Not always high sulfidation epithermal deposits and porphyry are found in the central facies of volcanoes and low sulfidation epithermal deposits are far from central facies because in areas far from the center there can be intrusions that form a hydrothermal system so as to produce high sulfidation epithermal deposits.Research is still interpretive so it requires detailed field data, more complete laboratory data, the addition of parameters and other methods in further research. Keywords: volcanostratigraphy, volcanic facies, mineralization type, Kulon Progo
ANALISIS GENESA BATUAN BEKU BERSTRUKTUR KEKAR TIANG MENGGUNAKAN DATA LAPANGAN DAN PETROGRAFI PADA DAERAH LEMAHABANG, DORO, PEKALONGAN, JAWA TENGAH BAYU AJI SETIYAWAN; Oky Sugarbo
Retii 2021: Prosiding Seminar Nasional ReTII ke-16
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

The phenomenon of a geological object that is formed in the form of a columnar joint structure in the Lemahabang, Doro, Pekalongan, Central Java area is one of the formations of volcanic activity that happened in the past. Local community assumes that this phenomenon is an ancient relic in the form of megalithic site, but it can be explained scientifically through an analysis of the columnar joint characteristic by using field and petrografy data. The observasion by using quantitative and qualitative methods on rock samples in the research area showed that these rocks are andesite were afanitic-porphyritic textured with the type of colonnade and 4-7 facet formation with a diameter ranging from 30-87 centimeters. Columnar joint in the research area has dimention of 5 to 7 meters of height with a vertical orientation direction (80-90⁰) and horizontal orientation direction (0-30⁰). The purpose of this research is to provide an overview how columnar joint structure in Lemahabang can form so the local community doesn’t assume that the geological phenomenon is a tample.
Investigasi Lingkungan Pengendapan berdasarkan Fasies Batuan Karbonat Formasi Pamutuan Daerah Sindangsari dan Sekitarnya, Cimerak, Pangandaran, Provinsi Jawa Barat Fistina Audrey, Vivi; Rizqi, Al Hussein Flowers; Kurniawan, Sandi; Wijaya, Naufal Arya; Sugarbo, Oky
Retii Vol 18 No 1 (2023): Prosiding Seminar Nasional ReTII ke-18 (Edisi Penelitian)
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

The research area is in the Sindangsari and surrounding areas, Cimerak District, Pangandaran Regency, West Java Province. The study area is included in the Pamutuan Formation, which is exposed in the South of the Karangnunggal map sheet, the Middle Miocene Pamutuan Formation, with a shallow marine depositional environment. Differences in sedimentation processes and the relationship between formations at several locations are thought to be due to the influence of early paleogeography. This is an interesting study because it can provide a specific description of the development of the depositional environment in the study area. In order to understand the Pamutuan Formation's sedimentation process, facies and depositional environment analyses were carried out in this study. The method used in this study included collecting data by selecting representative samples and carrying out petrological and petrographic descriptions to determine a facies such as lithology. Based on data analysis, four rock facies were obtained; Greywacke lithic and Mudrock, Bounstone, facies Packstone, and Mudstone. These facies were deposited in four alternating depositional environments: sand shoals, reef margin, slope, and toe of the slope. Microfossil analysis shows that carbonate rocks from the Pamutuan Formation in the study area were deposited at N 13 – N 14 (Middle Miocene) in the Middle Neritic – Outer Neritic environment (100 – 200 meters). Keyword : facies, depositional environment, pamutuan, Southern mountain, pangandaran.
Uji Tingkat Akurasi Pemetaan Digital Menggunakan Wahana Unmanned Aerial Vehicle (UAV) Studi Kasus Wilayah Out Pit Dump Barat PT. Cipta Kridatama Job Site Binuang Mitra Bersama, Provinsi Kalimantan Selatan Eka Nur Hayati; Laurens, Hannaesa; Obrin Trianda; Oky Sugarbo; Anggi Deliana
Retii Vol 18 No 1 (2023): Prosiding Seminar Nasional ReTII ke-18 (Edisi Penelitian)
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

Pemetaan dengan Unmanned Aerial Vehicle (UAV) merupakan salah satu metode yang dinilai efektif dan efisien dengan hasil akurasi yang dapat memenuhi standar yang telah di tetapkan oleh Badan Informasi Geospasial (BIG). Untuk mendapatkan tingkat akurasi yang memenuhi standar, maka di gunakan sejumlah titik ikat atau Ground control points (GCP) sebagai referensi koordinat yang sebenarnya. Pada penelitian ini jumlah titik yang di gunakan adalah sebanyak 14 titik yang tersebar di wilayah pemetaan. Penelitian dilakukan di kawasan Out Pit Dump (OPD) Barat PT. Cipta Kridatama Job Site Binuang Mitra Bersama yaitu dengan luas wilayah pemetaan ± 120 Ha. Pengambilan data lapangan menggunakan Unmanned Aerial Vehicle (UAV) Drone seri DJI Phantom 4 dan GPS Geodetik yang kemudian data akan di oleh menggunakan software Agisoft PhotoScan. Dari uji akurasi koordinat planimetris hasil pemetaan foto udara didapatkan nilai CE90 sebesar 1,53 meter dan nilai LE90 sebesar 2,61 meter yang berarti bahwa uji akurasi horizontal dan vertikal ketelitian peta memenuhi stadar untuk skala peta 1:10.000 yaitu masuk kedalam orde kelas 1 dan 2. Report root mean square error (RMSe) untuk ketelitian hasil pengukuran menggunakan unmanned aerial vehicle (UAV) mendapatkan nilai error horizontal sebesar 1,01 meter dan vertikal 1,55 meter.
Fasies Gunung Api Daerah Kaliangkrik dan Sekitarnya, Kabupaten Magelang, Provinsi Jawa Tengah Arjun Sadewa; Ev Budiadi; Oky Sugarbo
Retii Vol 18 No 1 (2023): Prosiding Seminar Nasional ReTII ke-18 (Edisi Penelitian)
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

Daerah penelitian berada di sisi tenggara dari Gunung Sumbing, yang secara fisiografi daerah penelitian termasuk dalam Zona Busur Vulkanik Kuarter (Van Bemmelen, 1994) yang secara umum gunung api kuarter ini menempati bagian tengah Pulau Jawa. Stratigrafi pada daerah penelitian disusun oleh batuan yang berumur kuarter yang merupakan hasil dari aktivitas vulkanisme. Pembahasan mengenai gunung api menarik peneliti mengkaji lebih lanjut terkait dengan fasies gunung api. Penelitian ini dilakukan dengan menggunakan pemetaan geologi permukaan (geological suface mapping) serta analisis data berupa analisis studio dan laboratorium berupa petrografi. Daerah penelitian dibagi menjadi 3(tiga) fasies gunung api, yaitu Fasies Sentral, Fasies Proksimal dan Fasies Medial. Fasies gunung api daerah penelitian dimulai dari yang paling tua adalah Fasies Proksimal Khuluk Beser yang memiliki umur yang sama dengan Fasies Sentral dan Fasies Proksimal Gumuk Munggang selanjutnya yang paling muda adalah Fasies Proksimal dan Fasies Medial Khuluk Sumbing
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. Rizqi Prastowo SANDI KURNIAWAN Setiawan, Nanda Juli Setyo Pambudi Theophilia Listyani Retno Astuti Wijaya, Naufal Arya