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All Journal Bulletin of Scientific Contribution : Geology Jurnal Geosains West Science Journal of Geosciences and Applied Geology
Cecep Yandri Sunarie, Cecep Yandri
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Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Energy Engineering Environmental Science

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Geological and Geomorphological Studies in Parts of Angkola Sangkunur District, South Tapanuli Regency, North Sumatra Azzaenuri, Mohammad Fachri; Rosana, Mega Fatimah; Sunarie, Cecep Yandri; Angga Syahputra, Muhammad Eko; Marbun, Ardiansyah
Journal of Geological Sciences and Applied Geology Vol 7, No 2 (2023): Journal of Geological Sciences and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v7i2.50440

Abstract

This research focuses on studying geological conditions that develop in the research area which is based on studies related to geomorphology, stratigraphy and geological structures that develop in the research area. In this research, the data used comes from mapping and taking surface data in a research area with an area of 12.5 km2, followed by petrographic analysis to determine the types of rocks found in the research area. The research area is divided into three geomorphological units, namely Sloping Volcanic-Structural Rolling Hills, Steep Volcanic-Structural Hills, and Sloping Volcanic-Structural Rolling Hills. The drainage pattern in the research area consists of parallel patterns in almost the entire area and sub-dendritic flow patterns in the central part of the area. The research area is composed of 3 lithologies, from old to young, namely, andesite, diorite which was formed as an intrusion, and breccia which consists of polymic and monomic breccia with fragments in the form of andesite, diorite, quartz fragments and carbon. The structures in the study area have the main directions northwest-southeast and northeast-southwest, both of which influence the morphology of the study area.
PRELIMINARY STUDY OF ROCK GEOCHEMISTRY FOR GOLD MINERALIZATION IN AREA-“X”, CENTRAL KALIMANTAN Sunarie, Cecep Yandri; Fachrudin, Kurnia Arfiansyah; Barkah, M. Nursiyam; Hadian, M Sapari D.; Suganda, Bombom Rachmat; Helmi, Faisal
Journal of Geological Sciences and Applied Geology Vol 5, No 3 (2021): Journal of Geological Science and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v5i3.38348

Abstract

Area-“X” is located in the Central Kalimantan Province of Indonesia, one of several places in the Central Kalimantan region with a high potential for gold deposits. During the investigation, selected mineralized rock samples were collected, resulting in two rock outcrop samples and four rock float samples. All samples were analyzed for Au content at the local laboratorium using the Aqua Regia AAS method.  The lithology of the investigation area can be classified into two different rock units: The sedimentary rock unit and the igneous rock unit. The rock outcrop samples assay return with gold (Au) content from 0.21 ppm to 1.43 ppm. At the same time, the rock floated Au content from 0.79 ppm, Au, to 3.86 ppm. One rock outcrop sample named “Outcrop-001” identified as Quartz Vein up to 40cm width with N500E/850 strike and dip. The other two rock outcrop samples designated “Outcrop-002” and “Outcrop-003” are the parallel quartz veinlet up to 8cm width with strike N350E and unidentified dip. Based on field observation and assay results, this area-“X” has potential for gold mineralization as vein type.
MANAGEMENT OF THE BATUR GEOPARK AS GEOLOGICAL CONSERVATION BASIS Hadian, Sapari Dwi; Suganda, Bombom Rachmat; Sunarie, Cecep Yandri; Barkah, Mochamad Nursiyam; W M Iskandarsyah, Teuku Yan; Bulqiah Ulfa, Ratu; Krishna Yuliawati, Ayu; Arfiansyah, Kurnia
Journal of Geological Sciences and Applied Geology Vol 6, No 1 (2022): Journal of Geological Science and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v6i1.45208

Abstract

The Batur Caldera is located in Kintamani District, Bangli Regency, Bali Province. The coordinates are 8 0 14.30' South Latitude, 115 0 22.30 East Longitude. The closest city distance is Bangli. The Batur Caldera contains the Batur Volcano and to the right is Lake Batur. Around it, in accordance with the beliefs of the local community, there are many temples, such as Besakih Temple and Pasar Agung Temple.Indonesia's success in making the Batur Caldera a Geopark recognized by UNESCO, thanks to the hard work of the Bangli Bali Regent/Pemda, Kemenparekraf, ESDM Geology Agency. In an effort to promote themselves and improve the quality of Batur Caldera geopark tourist destinations.Indonesia's wealth consisting of flora, fauna, cultural diversity, is a tourism asset that Indonesia already has that is able to realize love for national diversity as well as national unity. In addition, geological heritage (geoheritage) and sustainable geological diversity are the beginning of a geological park (geopark) towards nature-based tourism activities (geotourism). Geopark is the protection of cultural and natural heritage by emphasizing the potential between socio-economic and cultural development and the preservation of the natural environment. Geotourism as an earth heritage contains geological sites, which can produce science, scarcity, beauty, and education. Referring to conservation, education, and local economic growth.In realizing Geotourism in Indonesia, it is necessary to have the role of Tourism Stakeholders, namely a group of tourism actors who are responsible for implementing tourism that is responsible for preserving nature and is sustainable, including the Central Government, Regional Government, Private sector, and the Indonesian Tourism Promotion Agency.The government is supervised by the Ministry of Tourism and Creative Economy which is handed over to the Culture and Tourism Office in each region in the development of infrastructure, policies, regulations and promotions. In addition, the Geology Agency, as an institution that carries out geological conservation efforts in the context of sustainable development, is planning and preparing to organize the Geotourism. Besides that, there is the role of the community, several expert institutions in their fields to empower the community to be able to participate in the geotourism industry. Keyword : Geopark, Geotourism, Stakeholders, Batur Caldera
ANALYSIS OF GRAIN SIZE AND MINERALOGY OF HEAVY MINERAL GRAINS IN PALANGKA RAYA AREA, CENTRAL KALIMANTAN PROVINCE Nurzakiyah, Halimah; Rosana, Mega Fatimah; Sunarie, Cecep Yandri; Ernowo, Ernowo
Journal of Geological Sciences and Applied Geology Vol 8, No 2 (2025): Journal of Geological Sciences and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v8i2.58052

Abstract

The Palangka Raya area is situated on the island of Borneo, specifically within the Central Kalimantan province. The study area is composed of a lithological sequence comprising fine-coarse quartz sandstone and cross-layered conglomerate, with components in the form of malleable and granitic rocks from the Dahor Formation (TQd) and alluvium deposits. This sequence has the potential for heavy mineral deposits associated with sedimentary sands. This study aimed to calculate and identify grain size and heavy mineral content distribution within the investigated area. The research was conducted using a combination of grain size analysis and grain mineralogy analysis on six mesh numbers. The results of the grain size analysis indicate that the majority of samples exhibit grain sizes within the mesh numbers -10+18 and -60+140. The results of the grain mineralogy analysis revealed the presence of heavy minerals, including cassiterite, hematite, biotite, chalcopyrite, zircon, rutile, ilmenite, garnet, amphibole, and staurolite. Heavy mineral variations were observed on mesh numbers -60+140 and <140. These minerals are believed to have originated from metamorphic rocks, S-type granitic rocks, and I-type granitic rocks.
POTENSI BIJI BESI DI DAERAH AMBULANGAN, BANJAR, KALIMANTAN SELATAN Sunarie, Cecep Yandri
Bulletin of Scientific Contribution Vol 6, No 2 (2008): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (867.073 KB) | DOI: 10.24198/bsc.v6i2.8164

Abstract

Research area is located in Ambulangan, Banjar regency of South Kalimantan province. The research is aimed to indentified and mineral inventory of Iron Ore deposit, as well as primary or secondary type ore deposit. Morphology of the area is generally covered by hilly volcanic terrain with elevation below 650 m above sea level, the drainage pattern is mainly sub-parallel.Litology of the study area is covered mainly by Cretaceous rocks consists of Sediment, volcanic and andesitic intrusion.The iron ore occurred as primary and secondary type deposit. The primary type is exposing as vein like structure of approximately 6 m width and 50 m long, where as the secondary type is exhibiting as boulder or lateritic soil. Chemical analysis of primary iron ore indicated the ore grade is about 66.37% and 62.99% for secondary iron ore.
Pemetaan Digital Perbukitan Sukalilah: Teknologi Drone, Fotogrametri, dan (Ground Control Point ) GCP untuk Kebun Buah & Drainase Mata Air Sukaresmi Hadian, Mohamad Sapari Dwi; Sophian, Raden Irvan; Rustikadara, Taufik; Sunarie, Cecep Yandri
Jurnal Geosains West Science Vol 3 No 02 (2025): Jurnal Geosains West Science
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/jgws.v3i02.2108

Abstract

Penggunaan teknologi drone dan fotogrametri semakin populer dalam berbagai aplikasi pemetaan dan survei, terutama di daerah yang memiliki topografi kompleks seperti perbukitan. Teknologi ini menawarkan solusi yang efisien dan akurat untuk menghasilkan peta digital dengan resolusi tinggi, yang sangat diperlukan dalam berbagai proyek pembangunan dan pengelolaan lahan.  Pemanfaatan teknologi drone dan fotogrametri dengan kerangka Ground Control Point (GCP) untuk menghasilkan pemetaan digital yang akurat dan detail di daerah perbukitan Sukalilah, Kabupaten Garut. Studi kasus ini berfokus pada pengembangan kebun buah dan persiapan sistem drainase dari Mata Air Sukaresmi, Metode yang di gunakan dalam penelitian ini adalah mencoba mengembangkan data dari hasil foto udara dengan memanfaatkan data Digital Surface Model (DSM) yang di olah menjadi Digital Terrain Model (DTM), dimana data DSM masih berupa data ketinggian bangunan, pohon dan lain-lain, sehinggga untuk menghasilkan Digital Terrain Model (DTM) diperlukan proses filtering menggunakan software Saga Gis untuk menghilangkan ketinggian pohon, bangunan, dan menganalisa jalur drainase air untuk  meyiraman kebun, Data DTM tersebut dijadikan dasar untuk pemodelan 3D piping air, hasil yang diharapkan dapat meningkatkan efektivitas dan efisiensi dalam pengembangan kebun buah serta pengelolaan sumber daya air dan memberikan kontribusi pada peningkatan kesejahteraan masyarakat setempat sehingga penelitian ini memberikan kontribusi yang signifikan terhadap pengelolaan lahan dan sumber daya air di daerah perbukitan Sukalilah, meningkatkan efisiensi dan produktivitas pertanian, serta menyediakan model penerapan teknologi yang dapat direplikasi di wilayah lain.  
MINERALOGY AND SEDIMENT DISTRIBUTION BASED ON GRAIN SIZE ANALYSIS IN THE KAPUAS AREA, CENTRAL KALIMANTAN Diwantara, Raja Hertansyah; Rosana, Mega Fatimah; Sunarie, Cecep Yandri; Ernowo, Ernowo
Journal of Geological Sciences and Applied Geology Vol 8, No 2 (2025): Journal of Geological Sciences and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v8i2.58054

Abstract

The Kapuas region in Central Kalimantan exhibits intriguing geological potential due to the presence of a large river and sediment flows closely associated with fluvial activity. This study aims to identify the distribution of sediment grain sizes and the presence of heavy minerals in the study area. Sediment sampling locations were identified at four points using shallow drilling techniques, specifically with a hand auger. The research methods employed include grain size analysis (granulometry) and grain counting analysis using polarized microscopy. The results indicate that the grain sizes in the study area range from coarse to fine sand. The sediment transport mechanism occurs as bedload for coarse-sized sediments and in suspension for fine-sized sediments. The mineralogical composition of sediments in the study area contains heavy minerals such as rutile, ilmenite, cassiterite, biotite, hematite, zircon, and chalcopyrite. The varied mineral content reflects a source material origin from acidic to intermediate igneous rocks and metamorphic rocks. This indicates a complex and dynamic geological history in the region.
Co-Authors Angga Syahputra, Muhammad Eko Azzaenuri, Mohammad Fachri Bombom Rachmat Suganda, Bombom Rachmat Bulqiah Ulfa, Ratu Diwantara, Raja Hertansyah Ernowo Ernowo Fachrudin, Kurnia Arfiansyah Faisal Helmi Hadian, M Sapari D. Krishna Yuliawati, Ayu Kurnia Arfiansyah, Kurnia M. Nursiyam Barkah, M. Nursiyam Marbun, Ardiansyah Mega Fatimah Rosana Mochamad Nursiyam Barkah Mohamad Sapari Hadian Nurzakiyah, Halimah Raden Irvan Sophian, Raden Irvan Rustikadara, Taufik Sapari Dwi Hadian, Sapari Dwi W M Iskandarsyah, Teuku Yan