Structural geology, engineering geology, and geological natural disaster mitigation
3
Scopus Publications
109
Scholar Citations
5
Scholar h-index
2
Scholar i10-index
Scopus Publications
Fluid Inclusion and Mineralization of Base Metals in Cretaceous Metamorphic Rocks, in Jiwo Hills, Bayat, Klaten, Central Java Fivry Wellda Maulana, Mega Fatimah Rosana, Euis Tintin Yuningsih, Agus Didit Haryanto, Heru Sigit Purwanto, Arie Noor Rakhman Indonesian Journal on Geoscience, 2024 The lack of mineralization research on metamorphic rocks in Java, especially in the Jiwo area, is part of the research interest. The host rock of ore mineralization in the Jiwo area is Cretaceous metamorphic rock located in the hilly area of Jiwo, Klaten, Central Java. The presence of chlorite, actinolite, quartz, epidote, and garnet minerals indicates the metamorphic facies of greenschist. Meanwhile, the presence of glaucophane, quartz, and epidot minerals is a metamorphic facies of blueschist. The metamorphic rock research method was carried out in several stages: 1. Observation; 2. Field data collection, including mapping of metamorphic rock distribution, general geological conditions and rock sampling; and 3. Laboratory analysis. Laboratory analysis testing consists of petrography, ore microscopy, geochemistry (AAS), and fluid inclusion. Alterations that develop in the researched area are in the form of propylitic (chlorite, calcite, epidote), argillic, and silicification (quartz, graphite, calcite, carbonate minerals). Ore microscopy analysis has identified the presence of mineral sulfide such as pyrite, chalcopyrite, bornite, galena, and covellite. In addition, galena was found covered with chalcopyrite. Based on AAS analysis on mineralized metamorphic rocks, Au levels are 0.001 - 0.008 g/t, Ag 0.1 - 2.4 g/t, Cu 4 - 75 g/t, Zn 14 - 166 g/t, and Pb 11 - 60 g/t. The inclusion of fluid from the discordant vein was obtained with a homogenization temperature (Th) of 312 - 435 0C, with a salinity of 1.95 - 5.05 wt. % eq. with isothermal mixing and heating depressurization conditions. The isothermal mixing process is a mixture of meteoric fluids and metamorphic fluids. Meanwhile, heating depressurization occurs during subduction, so that the temperature is relatively high. The homogenization temperature (Th) of the concordant vein ranges from 168.5 - 296.55 °C, with a salinity of 1.95 -12.6 wt% NaCl eq. A salinity of 12 wt% NaCl is formed due to liquids that are aquos trapped at high pressure and temperature conditions and the devolatilization process that occurs during subduction. Based on the plotting of the homogenization temperature range and the salinity of fluid inclusion, which is 168.5 - 4350C and 1.95 - 12.6 wt% NaCl eq, the type of deposits in the study area is in the range of Au lode or orogenic deposits. The existence of two homogenization clusters in the Jiwo Hill is estimated to be part of the process of forming the blueschist facies with greenschist which is shown in the retrograde actinolite in the glaucophane epidote schist rock which is part of the blueschist facies.
Analysis of land use for mitigating mass movement threats, case study: Wonolelo and its surrounding areas, Bantul Regency Muchlis, A N Rakhman, U Latifah Iop Conference Series Earth and Environmental Science, 2021 This study aims to mitigate mass movement disasters to reduce the impact of the threat in the Wonolelo area and its surroundings, Pleret District, Bantul Regency, Yogyakarta Special Region. We carried disaster mitigation out by mapping the potential vulnerabilities of mass movements along with land use directions. The data used is in the form of parameters referring to the regulation of the Minister of Public Works Number 22/PRT/M/2007. Parameter data consists of natural factors and human factors. Natural factors such as morphology, constituent lithology, geological structure, vegetation, water conditions. Human factors such as human activity, population, and mitigation efforts. The observed data are at 25 observation points in the field. With the support of rainfall and seismicity data, we can carry an assessment of potential hazards out with a weighted value. The potential for mass movement vulnerability is in the medium and low-level mass movement-prone zones. Suggested disaster mitigation is structuring land use as horticultural agricultural land, production forest, protected forest, settlements, and food crop agriculture.
MODIFICATION OF ROCK MASS CLASSIFICATION IN THE ROCK SLOPE PLATY JOINTED ANDESITE AT SELOHARJO AREA Arie Noor Rakhman International Journal of Geomate, 2019 The research area is located in the Seloharjo Area, the southern hills of Opak River, Bantul Regency, Yogyakarta Special Region, Indonesia. This study explores the application of rock mass classification assessment by modifying the Q system (SQR) for rock slope stability (SMR) where the constituent lithology is platy jointed andesite. Andesite in the research area is lava haze, where currently the rock slopes are prone to rockfall since the earthquake in 2006. Correction of Q system parameters in the research area is controlled by oriented slopes and joints that were weathered into clay minerals filling the joints. Slope between 74° and 78° with strikes of the slope face between N 110° E and N 228° E. Strike direction of the planar joint plane is between N 136° E and N 238° E with an angle of dip is 20° and 26°. The presence of secondary minerals dominated by smectite and illite clay minerals. Based on the value of the RMR between 43 and 72 with the SMR value between 59.99 and 87.03, the Q value between 7.47 and 299.35, the SQR value between 84.58 and 2,564.10, the equation in the form of SMR = 7LnSQR + 30 is obtained.
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Pemberdayaan Perempuan dalam Penguatan Pengelolaan Bank Sampah Berbasis Digital di Karanggayam, Kalurahan Catur Tunggal, Sleman AN Rakhman, FW Maulana, FY Prabowo, M Sholeh Jurnal Pengabdian Masyarakat dan Riset Pendidikan 4 (3), 16897- 16905 , 2026 2026
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Fluid Inclusion and Mineralization of Base Metals in Cretaceous Metamorphic Rocks, in Jiwo Hills, Bayat, Klaten, Central Java FW Maulana, MF Rosana, ET Yuningsih, AD Haryanto, HS Purwanto, ... Indonesian Journal on Geoscience 11 (2), 251-267 , 2024 2024 Citations: 1
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Analysis of Land Use for Mitigating Mass Movement Threats, Case Study: Wonolelo and Its Surrounding Areas, Bantul Regency Muchlis, AN Rakhman, U Latifah IOP Conference Series: Earth and Environmental Science 871 (1), 012024 , 2021 2021 Citations: 3
MOST CITED SCHOLAR PUBLICATIONS
Studi kasus gempa bumi yogyakarta 2006: pemberdayaan kearifan lokal sebagai modal masyarakat tangguh menghadapi bencana AN Rakhman, I Kuswardani Prosiding Seminar Nasional Aplikasi Sains & Teknologi (SNAST) Periode III … , 2012 2012 Citations: 30
Modification of rock mass classification in the rock slope platy jointed Andesite at Seloharjo Area AN Rakhman, Z Zakaria, D Muslim, I Haryanto, S Mulyaningsih International Journal of GEOMATE 16 (53), 163-170 , 2019 2019 Citations: 11
Persebaran Salinitas Air Tanah di Kecamatan Dukuhseti Kabupaten Pati Muchlis, PD Sukmawati, AN Rakhman, TB Antoni Jurnal Teknologi 14 (1), 83-90 , 2021 2021 Citations: 6
Kesiapsiagaan Rumah Tangga Menghadapi Gempa Berbasis Sejarah Dan Kearifan Lokal Di Desa Tlogoadi, Sleman AN Rakhman Prosiding Seminar Nasional Pengabdian Masyarakat , 2020 2020 Citations: 5
Geotoksikologi: Usaha Menjaga Keracunan Akibat Bencana Geologi Sukandarrumidi, FW Maulana, AN Rakhman UGM PRESS 1, 392 , 2018 2018 Citations: 5
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Selidik Cepat Ciri Air Tanah Yang Tercemar (Kawruh Tirta) Di Forum Komunikasi Warga Budaya Jawa Ngudi Kawruh Jawa, Mranggen, Sewon, Bantul AN Rakhman Dharma Bakti, 26-34 , 2020 2020 Citations: 4
Studi rekomendasi penggalian ditinjau dari struktur bidang lemah dan kekuatan batuan lava andesit di Daerah Girimulyo, Kecamatan Girimulyo, Kabupaten Kulonprogo, Propinsi … NWAA Triheriyadi, AN Rakhman Jurnal Teknologi Technoscientia, 48-57 , 2016 2016 Citations: 4
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Analysis of Land Use for Mitigating Mass Movement Threats, Case Study: Wonolelo and Its Surrounding Areas, Bantul Regency Muchlis, AN Rakhman, U Latifah IOP Conference Series: Earth and Environmental Science 871 (1), 012024 , 2021 2021 Citations: 3
Mineralogical Control of Rock Slope Stability Assessment of Columnar Jointed Basaltic Rock Masses in The Cengkehan River Valley, Indonesia AN Rakhman, Z Zakaria, D Muslim, I Haryanto, FW Maulana 5th International Conference of Geological Engineering Faculty (ICGEF 2020), 39 , 2020 2020 Citations: 3
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Studi Analisis Struktur Batuan dan Evaluasi RQD: Potensi Longsoran di Ruas Jalan Goa Jepang, Jelapan, Bantul AN Rakhman Reinforcement Review in Civil Engineering Studies and Management 3 (1), 1–11 , 2024 2024 Citations: 2
Pembuatan dan Penggunaan Alat Detektor Gempa untuk Pendidikan Kebencanaan bagi Anak Santri di Pondok Pesantren Al Muyamman, Giwangan, Yogyakarta AN Rakhman, FW Maulana Jurnal Dharma Bakti 5 (1), 1-10 , 2022 2022 Citations: 2
Aplikasi Fitur Geologi dan Citra Google Earth untuk Mengidentifikasi Potensi Risiko Multi Bencana dari Bencana Gempa Bumi di Bambanglipuro, Indonesia AN Rakhman, FW Maulana Jurnal Teknomineral 4 (1), 1-9 , 2022 2022 Citations: 2
Pembuatan Model Lapisan Batubara Di Blok Selatan Lapangan “Ej-Bp”, Kabupaten Lahat, Provinsi Sumatera Selatan Untuk Perhitungan Sumberdaya Batubara DA Widiarso, MJ Fasciano, WK Hidajat, AN Rakhman Jurnal Teknomineral 2 (1), 11-18 , 2020 2020 Citations: 2
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