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All Journal Bulletin of Scientific Contribution : Geology IJOG : Indonesian Journal on Geoscience Journal of Geoscience, Engineering, Environment, and Technology Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) Spektra: Jurnal Fisika dan Aplikasinya Indonesian Mining Journal PROMINE Buletin Sumber Daya Geologi Kumawula: Jurnal Pengabdian Kepada Masyarakat Indonesian Journal on Geoscience Indonesian Journal on Geoscience Jurnal Citizenship Virtues INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Journal of Geoscience Engineering and Energy (JOGEE) Jurnal Geominerba Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) Journal of Geosciences and Applied Geology Indonesian Mining Journal

Iyan Haryanto

Jurusan Teknik Geologi, Universitas Padjadjaran

Author-ID : 525629

Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics Social Sciences Other

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Gold mineralization in the Neo-Tectonic Region of Honje Formation and Cipacar Formation Dudi Nasrudin Usman; Nana Sulaksana; Febri Hirnawan; Iyan Haryanto
Journal of Geoscience, Engineering, Environment, and Technology Vol. 3 No. 4 (2018): JGEET Vol 03 No 04 : December (2018)
Publisher : UIR PRESS

The gold ore mineralization region is a zone of mineralization which is inseparable from the role of geological structures, one of which is fracture. The Cibaliung and surrounding areas are epithermal gold mineralization zones, in this region there are two main mineralized zones, namely Cibitung Zone and Cikoneng Zone. It has almost the same characteristics where the fractures formed are quite large so that it influences the class of rock mass, but the other side is the presence of many fractures which make it easier for scattered mineralization to fill the fracture so that the formed vein is thick enough. This study aims to analyze the relationship of Rock Mass Rating (RMR) and Rocks Quality Design (RQD) to tectonic movements in the region to prove the neo-tectonic phenomena in the Honje Formation and Cipacar Formation using surface mapping methods. The methods used are rock type mapping, rock structure mapping, mapping and RQD measurements, rock descriptions and rock sample collection. All the data obtained are then verified and validated before processing and statistical tests. Statistical tests are carried out to ensure an analysis with a basis that is recognized by all parties. Both formations above have different ages, which is for the Honje Formation (Andesite Lava) with the final Miocene age and Cipacar Formation (tuff) at the age of Pleistocene. The findings of this study are the two formations measured by RQD and RMR on rock cracks and surrounding conditions; the RMR observation station made around 125 points in the Honje Formation and 117 points in the Cipacar Formation. The R2 value of the RMR value of the Honje Formation and the Cipacar Formation shows a positive relationship of 67%; The biggest RMR value is in Tuff rock. In addition, the relation between RMR Andesite Lava Value and RMR Tuff Value is done with T-Test between Andesite Lava and Tuff where the result shows no difference of mean between RMR Andesite Lava and RMR Tuff Value. Therefore, the tectonic processes that occur in the Honor Andesite Lava Unit of Honje Formation with the preceding position are formed, and the older age at the end of the Miocene age that is blocked by the field of unconformity experienced Continuity on Cipacar Formation Tuff Unit with the upper position that is formed after Honje Formation and younger age in Pleistocene. The continuation of the tectonic process proves the existence of active tectonic activity better known as Neo-tectonic.

Biomarker Composition of Some Oil Seeps from West Sulawesi, Indonesia Yarra Sutadiwiria; Ahmad Helman Hamdani; Yoga Andriana Sendjaja; Iyan Haryanto; Yeftamikha Yeftamikha
Indonesian Journal on Geoscience Vol 5, No 3 (2018)
Publisher : Geological Agency

DOI: 10.17014/ijog.5.3.211-220A suite of oil seep samples collected from the Lariang and Karama Basins, West Sulawesi, Indonesia, have been analyzed using GC and GCMS techniques. Their biomarker compositions have been used to reveal the likely source rock that produces oil. These oil seep samples contain a range in both the concentration of hydrocarbons present and certain level of biodegradation experienced. All sterane m/z 217 data display a familiar pattern of steranes with carbon numbers from 27 to 29 together with pregnane and homo-pregnanes, including rearranged steranes. Triterpane (m/z 191) data show a moderate content of tricyclic terpanes (Tri/C30H), medium to high ratio of norhopane/hopane (C29/C30), and medium to high abundant land plan marker such as resin bicadinanes(Bic/C30H) and oleananes (Ol/C30H). The presence of high abundant oleananes in these samples has been interpreted as the evidence for a marine influence during early diagenesis that may occur by marine or via re-deposition of peat organics in marine sediments. Hence, these results state that the organic matter facies for their source rock oil seep samples from the West Sulawesi region are detected as mixed between allochthonous macerals from typical terrestrial higher plants transported into the basin from distal swamps and soils and some marine organic matter.

The Determination of Volcanic Characteristics Based on Deuterium and Oxygen-18 Isotope Compositions: A Case Study at Dieng Plateau, Central Java Priatna Priatna; Nana Sulaksana; Johanes Hutabarat; Iyan Haryanto
Indonesian Journal on Geoscience Vol 7, No 2 (2020)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.7.2.201-213

DOI:10.17014/ijog.7.2.201-213To find out volcanic characteristics, a geochemical approach can be used, one of which is through the measurement of deuterium and oxygen-18 isotopes from condensate and crater water samples. In this study, Dieng Plateau in Central Java was chosen, because it has a wide spread of fumarole fields and crater water. In addition, research in the Dieng Plateau is very useful in the management of geological-based tourism and geopark development in the future. Results of isotope analysis in Candradimuka Crater show the average number of isotope deuterium is δD – 500/00 and isotope oxygen-18 is δ18O –30/00 which produce the value of the mixing fraction of f 18O = 47.11%. This figure is the highest isotope number compared to other craters on the Dieng Plateau. The high value of the isotope-18 mixing fraction is supported by a strong plume from three vents in Candradimuka. Meanwhile, the results of crater water isotope tests obtained the highest results in Sikidang Crater with the value of the deuterium isotope is δD = – 10.300/00 and the isotope oxygen-18 is δ18O = 6.570/00 which are in the metamorphic water area from the mixing of magmatic processes with surface meteoric water. Based on the deuterium isotope approach with oxygen-18 crater water and fumarole condensate supported by subsurface temperature data, most of the Dieng Plateau has magmatic-hydrothermal characteristics, except Candradimuka Crater which belongs to the magmatic group.

GEOPHYSICAL FORENSIC FOR ARCHAEOLOGICAL EXPLORATION IN MUAROJAMBI, INDONESIA Bambang Sugiarto; Dicky Muslim; Iyan Haryanto; Zufialdi Zakaria; Emy Sukiyah; Vijaya Isnaniawardhani; Achmad Djumarma Wirakusumah; Heryadi Rachmat
Spektra: Jurnal Fisika dan Aplikasinya Vol 5 No 3 (2020): SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 5 Issue 3, December 2020
Publisher : Program Studi Fisika Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/SPEKTRA.053.06

In July 2011, archaeological exploration tried to apply the physics method for the first time in Muarojambi, Indonesia. We combined physics with geosciences and called it geophysical forensic. Our method is known as Ground Penetrating Radar (GPR). GPR used high-frequency electromagnetic (EM) waves between 10-3000 MHz to imaging subsurface based on dielectric permittivity’s physical parameters. Changes in the electrical properties, rock magnetism, and water content of the material under the surface will provide a response recorded on the radargram as a function of distance to time (two-way travel time). Data processing performs to reduce the noise recorded when collecting data. We have successfully obtained four GPR lines; three lines gathered near Gumpung Temple and one line at Telago Rajo Pool. The GPR method succeeded in giving a subsurface image and possibility of the archaeological objects near the Gumpung Temple and Telago Rajo Pool.

PRELIMINARY GEOMECHANICAL ANALYSIS ON LIMESTONES IN PPSDM GEOMINERBA CAMPUS, PADALARANG, WEST JAVA Irvan Sophian; Herlinawati H; Nur Khairullah; Abdurrokhim A; Iyan Haryanto; Hendarmawan H
Indonesian Mining Journal Vol 22, No 1 (2019): INDONESIAN MINING JOURNAL, Vol. 22 No. 1, April 2019
Publisher : Puslitbang tekMIRA

The research location is in the PPSDM Geominerba field campus. The campus is located in Padalarang, West Java that is surrounded by the open-pit mining of limestone and marble. This limestone was formed in Oligo-Miocene of Rajamandala Formation. The research objective was to determine the condition of the slopes around the campus based on geomechanical characteristics. Based on field observations, the slope angle in the area is dominated by steep slopes. The rock hardness level is dominated by hard rock with a hardness ranging from 50-100 MPa. Rock Mass Rating shows that the area is dominated by good rocks. While the Slope Mass Rating calculation show that the maximum slope angle is between 52-75°. Level of deformation and intensive weathering process will reduce the strength of the rock in the future. Several rock fall occurrences on this research area support this assumption. Yet, some local open pit mining area activity near the toe hill of the area need to be concerned regarding the effect of the local rock fall occurrences.

Pola Deformasi (Deformation Pattern) Mineralisasi Emas Sulfida Rendah di Zona Neo-Tektonik Selat Sunda Dudi Nasrudin Usman; Nana Sulaksana; Febri Hirnawan; Iyan Haryanto
PROMINE Vol 6 No 1 (2018): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

The Sunda Strait is one of the zones of the Eurasian plate encounters with fairly active Indian plates. This can be seen based on volcanic activity that occurred in the region of Mount Krakatau. But there are unique things that are important to learn is tectonic movement with geological forces that work to produce cracks in rocks, the formation of volcanoes and cracks that occur produce mineralized zones, especially in the Formation of Honje and Formation Cipacar and more widely known as Bayah Dome. The presence of mineralization of the Honje Formation and Cipacar Formation is particularly located in the District of Cimanggu, Mangku Alam Village, the existence of gold mining activities proves that the mineralization of the region has the potential of economy. The presence of mineralization will not be separated from the presence of rock fractures in the two formations that have different geological age of the Late Miocene and Plistocene. Both formations are hindered by the presence of unconformity fields. This study aims to prove the extent of tectonic activity occurring in the Honje Formation with the final Miocene age forwarded to the Cipacar Formation even though obstructed by the field of nonconformity with the results of field data processing based on the value of RMR and RQD value. Both parameters are also studied to determine the extent to which the RQD value determines the magnitude of the grade value of Gold (Au). The distribution of RMR value and rock RQD value is taken from 2 different rock units, ie, andesite rock units in Honje Formation and tuff rock units in Cipacar Formation, based on the data distribution around 125 RMR observation points and 117 RQD observation points in the field are processed by using method test the average difference of the two parameters from 2 different rock units. In addition, the RQD value was correlated to the high level of gold content using correlation regression test of 78 data content and RQD value. Results of processing and discussion of data indicate that between the value of RMR in andesit unit and tuff unit there is no difference in value means H0 accepted by tcount = 0.556 <ttable = 1.995, as well as the difference test average RQD value where the results show that there is no difference between the average value of RQD andesite rock units in Honje Formation and tuff rock units in Cipacar Formation with tcount = 1.714 <ttable = 1.995, based on the results of data processing it can be explained that the tectonic activity in Honje Formation with the final Miocene age is forwarded to Cipacar Formation even if obstructed the field of dissonance means that tectonic activity of the region is inferred as neotectonic activity of West Java. In addition, one more thing that can be concluded that the relationship of RQD with Gold content (Au) based on statistical test the greater the value of RQD then the value of gold content (Au) the greater the test results regression correlation value PValue (Significance) = 0.013 with the equation y = -0.715x + 75.882 value R2 42.39%. Because Significance value> 0.05 then H0 DENIED, so H1 accepted, where the higher the value of the Big Au content then the RQD Value the greater.

Parigi Carbonate Reservoir for Underground Gas Storage in West Java, Indonesia Edison Gunawan Sirodj; Edy Sunardi; Billy G Adhiperdana; Iyan Haryanto
Indonesian Journal on Geoscience Vol 9, No 2 (2022)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.9.2.219-228

DOI:10.17014/ijog.9.2.219-228This paper focuses on the characteristics and distribution of shallow reservoir carbonate in an underground gas storage. This study was done on Parigi carbonate as a significant reservoir carbonate in West Java Basin. The carbonate is abundant, and it occurs at shallow depths 800 to 1000 m below sea level. This formation broadly spreads out in onshore and offshore West Java areas as platform and build-up carbonates. The development of buildup carbonates is mostly in a low relief offshore. They well-developed onshore where the build-up exhibits coral reef frameworks, high relief, reaching over 450 m in thickness. The carbonate outcrop in Palimanan, western Cirebon which has been studied is grouped into four types of lithofacies. The preservation condition of this carbonate reservoir is important, for the storage capacity can inject a big gas volume. The porosity and permeability parameters are the most influential factor in reservoir evaluation. The parameters for gas storage in this field are within the range of the existing field parameters in Europe and America.

A Combination of Embedded Markov Chain and Binomial Probability As A Tool in Sedimentary Facies Analysis Djadjang Jedi Setiadi; Iyan Haryanto; Budi Muljana; Syaiful Alam
Indonesian Journal on Geoscience Vol 9, No 3 (2022)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.9.3.291-302

DOI:10.17014/ijog.9.3.291-302The methodology of facies analysis may include statistical examination to establish a local facies model. Without such examination, it is very difficult to predict the facies succession and to interpret the changes in depositional conditions from thick or complex stratigraphic sections. Based on the survey of sedimentary geologic literature in Indonesia, it is suggested that the aforementioned statistical method has relatively seldom been used in Indonesia. Such a situation may reflect a gap in information on the methodology and, accordingly, it seems imperative that there should be a re-exposition of the method. This paper presents a concise exposition of the combination of the embedded Markov Chain and binomial probability as one of the most successful statistical methods which are used in facies analysis. The results of previous studies of The Citalang Formation are used as a case study to illustrate its applications to the real geologic world.

INDEKS AKTIVITAS TEKTONIK RELATIF (IATR) SUB DAERAH ALIRAN SUNGAI CIKERUH, KABUPATEN BANDUNG, PROVINSI JAWA BARAT: INDEX OF RELATIVE ACTIVE TECTONICS IN CIKERUH WATERSHED, BANDUNG DISTRICT, WEST JAVA Taufiqih Hilman; Murni Sulastri; M. Nursiyam Barkah; Iyan Haryanto
Journal of Geoscience Engineering & Energy (JOGEE) VOLUME 4, NOMOR 1, FEBRUARI 2023
Publisher : Universitas trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jogee.v4i1.14862

Daerah penelitian terletak di Sub Daerah Aliran Sungai (DAS) Cikeruh pada bagian Timur Sesar Lembang, yang secara administratif berada di Kabupaten Bandung dan Kabupaten Sumedang, Jawa Barat. Berdasarkan fisiografi regional, daerah penelitian termasuk dalam Zona Bandung. Sedangkan berdasarkan stratigrafi regional, Sub DAS Cikeruh terdiri dari 3 satuan batuan yaitu Qvu, Qyu, dan Ql yang umumnya didominasi oleh batuan vulkanik. Tujuan dari penelitian ini adalah untuk mengetahui analisis pola kelurusan, analisis morfometri dan morfotektonik. Metode penelitian yang digunakan yaitu analisis geomorfologi kuantitatif. Analisis morfotektonik yang digunakan untuk mengidentifikasi Indeks Aktivitas Tektonik Relatif (IATR) di Sub DAS Cikeruh menggunakan indeks gradien panjang sungai (Sl), faktor asimetri (Af), integral hipsometri (Hi), rasio lebar dan tinggi lembah (Vf), indeks bentuk DAS (Bs), dan indeks sinusitas muka gunung (Smf). Hasil penelitian pada daerah penelitian menunjukkan pola kelurusan yang berorientasi Barat Daya-Timur Laut. Indeks Aktivitas Tektonik Relatif (IATR) di daerah penelitian terbagi menjadi 4 kelas. Persentase kelas tektonik di daerah penelitian yaitu; kelas 1 (sangat aktif) mencakup 18,22% dengan jumlah luas sub DAS yaitu 19,96 Km2, Kelas 2 (aktif) sekitar 35,99% dengan jumlah luas sub DAS yaitu 39,42 Km2, Kelas 3 (menengah) sekitar 9,36% dengan jumlah luas sub DAS 10,26 Km2, dan Kelas 4 (rendah) sekitar sekitar 36,41% dengan jumlah luas sub DAS 39,88 Km2. Secara umum, daerah tengah hingga Utara telah mengalami aktivitas tektonisme sedangkan daerah Selatan relatif stabil dari pengaruh tektonisme

ANALISIS PENENTUAN JARAK TITIK INFORMASI DAN KLASIFIKASI SUMBER DAYA ENDAPAN NIKEL LATERIT BERDASARKAN ANALISIS VARIOGRAM Irfan Marwanza; Chairul Nas; Theresa Naomi Putri; Ahmad Helman Hamdani; Iyan Haryanto
JURNAL GEOMINERBA (JURNAL GEOLOGI, MINERAL DAN BATUBARA) Vol 1 No 1 (2017): Jurnal Geominerba - 2017
Publisher : PPSDM Geominerba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58522/ppsdm22.v1i1.120

Estimation process of precipitated mineral deposit is usually done by using conventional method which is only based on sample position. The accurate estimation method, that includes spatial and temporal continuity, is considered important, and a method that takes account of this continuity is Kriging Method. A study will be conducted by making laterite nickel zonation, based on degree of drill core (coring), while content appraisal and nickel resource comparison in block model will use Kriging Method. Data of this study is taken from southern block exploration of PT. Haltim, Wailukum, district of East Halmahera, North Maluku. Description method isused to analyse assay data, lithology, collar, and bore hole survey. Analysis method is done by using Surpac 6.3 software. Through block model result, it is found that the spread of nickel, ferrum, MgO, SiO2 and cobalt is in every percentage of the level. This method will generate experimental Variogram using lag value, nugget effect and sill that should be taken into account to make an accurate estimation result. The classification is done based on thickness and weighting of saprolite zone in southern block. The result of classification using sill method for saprolite zone is one third sill for measuring area of 35 meter, and two third sill for appointed area of 55 meter. For that reason, in this study area, for 50 meter gap of bore hole is classified as appointed area.

Co-Authors . Irawati Abang Mansyursyah Surya Nugraha Abdul Bari Abdurokhim Abdurokhim Abdurrokhim Abdurrokhim ⠀ Abdurrokhim, . Achmad Djumarma Wirakusumah Adhiperdana, Billy G. Adhiperdhana, Billy Gumelar Adi Hardiyono Adjat Sudradjat -, Adjat Sudradjat Adjat Sudrajat Agus Didit Haryanto -, Agus Didit Haryanto Ahmad Helman Hamdani Aldrin Ramadian Ali Djamhuri Andi Agus Nur Andi Agus Nur, Andi Agus Andi Kurniawan Andriana, Yoga Arifin, Alvin Adam Aton Patonah Ayu, Shinta B.Sendjadja, Yoga Bambang Sugiarto Barkah, Mohamad Nursiyam Billy G Adhiperdana Budi Muljana Budi Mulyana Chairul Nas David Victor Mamengko David Victor Mamengko Dicky Muslim Djadjang Jedi Setiadi Dudi Nasrudin Usman Edi Tri Haryanto, Edi Tri Edison Gunawan Sirodj Edy Sunardi Eka Wulandari Eko Budi Lelono Eko Budi Lelono, Eko Budi Emi Sukiyah Emy Sukiyah Fadilah, Rizqi Fahira Lestari, Ayu Faisal Helmi Faizal Muhamadsyah -, Faizal Muhamadsyah Fauziely, Lili Febri Hirnawan Febri Hirnawan Febri Hirnawan Fenry Simorangkir, Fenry Hadi, Mochamad Nur Hafiz, Surya Darma hardiyanto, lutfi Hendarmawan H Hendarmawan, . Herlinawati H Hermes Panggabean Hermes Panggabean Heryadi Rachmat Himmes Fitra Yuda Ikramina, Alma Ildrem Syafri Irdanto Saputra, Irdanto Irfan Marwanza Irvan Sophian Ismawan - Ismawan Ismawan, Ismawan Johanes Hutabarat Johanes Hutabarat Joko Widodo Juwita Trivianty Musu Kurnia Arfiansyah, Kurnia Lamba, Lisa M. Nursiyam Barkah Mawardi, Sonny Mega Fatimah Rosana Mira Meirawaty Muhammad Burhannudinnur Muhammad Kurniawan Alfadli Murni Sulastri Mustofa, Santia Ardi Musu, Juwita Trivianty Nana Sulaksana Nana Sulaksana Nanda Natasia Nisa Nurul Ilmi Novi Triany Nur Khairullah Nurahmah, Siti Chusnul Chatimah Nurdradjat -, Nurdradjat Nurdrajat Nurdrajat Oeke Sobarin -, Oeke Sobarin Panuju Panuju Panuju Panuju Pradnya Paramarta Raditya Rendra Priatna Priatna Priatna, Priatna Priatna, Priatna Raden Irvan Sophian Ramadhan Adhitama Ramadhan, Galih Hadisurya Ridho Akbar, Radhitio Rizqi Fadilah, Dina Salsabila, Unik Hanifah Saputro, Anisa Ayu Saragih, Rahmat Yantono Sonny Mawardi Sulastri, Murni Suparka -, Suparka Syaiful Alam Syaiful Alam Syalsabilla, Lola Lintang Taufiqih Hilman Theresa Naomi Putri Vanessa, Agata Vijaya Isnaniawardhani Wicaksono, Danny Widyariestha, Mira Wiguna, Purwa Yarra Sutadiwiria Yeftamikha Yeftamikha Yeftamikha, . Yeftamikha, Yeftamikha Yeftamikha, Yeftamikha Yoga Andriana Sendjaja Yoga B.Sendjadja Yunita Rossa Indah Putri, Yunita Rossa Yusi Firmansyah, Yusi Yuyun Yuniardi Zufialdi Zakaria

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