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All Journal Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Journal of Applied Geospatial Information JRST (Jurnal Riset Sains dan Teknologi) SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal GEOSAPTA Jambura Geoscience Review Geodika: Jurnal Kajian Ilmu dan Pendidikan Geografi Jurnal Sibermas (Sinergi Pemberdayaan Masyarakat) Lamahu: Jurnal Pengabdian Masyarakat Terintegrasi Journal of Earth Energy Science, Engineering, and Technology Panrita Inovasi: Jurnal Pengabdian Kepada Masyarakat Geographica: Science and Education Journal Jurnal Riset dan Pengabdian Interdisipliner
Muh Kasim
Universiitas Negeri Gorontalo
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Diagenesis Analysis of Padengo Limestone Area, Gorontalo Regency Based on Petrographic Method Fikri Boften; Aang Panji Permana; Muhammmad Kasim
Journal of Applied Geospatial Information Vol 7 No 2 (2023): Journal of Applied Geospatial Information (JAGI)
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jagi.v7i2.5074

Abstract

Carbonate rocks are rocks composed of carbonate minerals that are chemically formed in the form of solutions, and there are organisms involved in their formation. The limestone found around Lake Limboto is very interesting, because the water in the lake is freshwater while the limestone is characteristic of a marine environment. Diagenesis is a natural process in sedimentary rocks that occurs from the initial deposition until it reaches the limit of metamorphism will be formed. The research area is located in Padengo Village, West Limboto Subdistrict, Gorontalo Regency with a research area of 7.72 Km2. This research aims to analyze the diagenesis of limestone in the Padengo area of Gorontalo Regency using the petrographic method. The methods used are field geological survey and petrographic analysis. The results showed that the geology of the Padengo area is composed of a wackestone limestone facies unit, a crystalline limestone facies unit, and an alluvial sediment unit. The diagenesis type of the study area consists of neomorphism, micritization, dissolution, cementation, and dolomitization. From the type of diagenesis, it can be determined that the limestone diagenesis environment of the study area starts from the marine phreatic zone, then the burial zone, and ends at the meteoric vadose zone.
Kontrol Topografi Terhadap Distribusi Ketebalan dan Pengayaan Nikel Laterit Desa Torete Morowali Aulya Tiara Putri; Muh Kasim; Ninasafitri Ninasafitri
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Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jrpi.v3i2.39000

Abstract

This study aims to analyze the influence of slope gradient on the distribution of laterite profile thickness and nickel (Ni) grade in Bungku Pesisir District, Morowali. The research methods include surface geological mapping, petrographic analysis, and geochemical analysis using X-Ray Fluorescence (XRF). The results indicate that slope gradient is the primary controlling factor in the lateritization process. Gentle slopes tend to have thicker laterite profiles, reaching up to 31.2 m at TRT-19, whereas steeper slopes show significantly thinner profiles, approximately 10 m at TRT-35. In addition to morphometric factors, the presence of rock fractures enhances water infiltration, which in turn intensifies the leaching of chemical elements. The distribution of Ni grade reaches its maximum in the saprolite zone due to supergene enrichment processes controlled by groundwater mobility. It is concluded that the interaction between slope morphology and rock structure plays a significant role in controlling the distribution and quality of lateritic nickel deposits in the study area.
Geologi dan Petrografi Batuan Beku Desa Biluhu Barat, Gorontalo Mohamad Nazer Ismail; Muh Kasim; Noviar Akase
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Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jrpi.v3i3.39810

Abstract

Sulawesi Island has high geological complexity due to the collision of three major plates, yet detailed petrographic studies in Gorontalo Province, particularly in West Biluhu Village, remain limited. This study aims to map the geological conditions (geomorphology, stratigraphy, structure) at a scale of 1:5,000 and to identify igneous rock types using petrographic methods. The methods include field surveys, slope and joint measurements, and thin section analysis under a polarized microscope. The results show that the geomorphology consists of Volcanic Hill Unit and Denudational Volcanic Hill Unit. The stratigraphy from oldest to youngest is Andesite Unit and Dacite Unit, correlated with the Tinombo Formation (Eocene–Oligocene). The geological structure is characterized by tension joints with northeast–southwest and north–south orientations. Petrography reveals hydrothermally altered andesite (quartz-filled microfractures, embayed crystal) and dacite with interstitial quartz. This study is important as an integrated geological baseline data and an initial indication of mineralization potential in the area.
Geomorfologi Daerah Poduwoma dan Sekitarnya, Kecamatan Suwawa Timur, Kabupaten Bone Bolango Ravit Tahaku; Fitryane Lihawa; Muhammad Kasim
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Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jrpi.v3i3.39471

Abstract

This study aims to identify the geomorphological conditions of Poduwoma and its surrounding areas, East Suwawa District, Bone Bolango Regency, through geological mapping at a scale of 1:10,000. Based on geomorphological analysis, the study area is divided into three main geomorphological units: the intrusive hill unit, the volcanic hill unit, and the fluvial floodplain unit. The drainage patterns are predominantly dendritic and parallel, reflecting relatively homogeneous lithological control and intensive erosional processes. Geologically, the study area is composed of two main lithological units, namely the diorite unit and the andesite unit. The diorite is characterized by a phaneritic texture with plagioclase, hornblende, biotite, and opaque minerals as its primary constituents, whereas the andesite exhibits aphanitic to porphyritic textures composed of plagioclase, hornblende, biotite, and a microcrystalline groundmass. Stratigraphic relationships indicate that the diorite represents the older rock unit, which was subsequently overlain by volcanic activity that produced the younger andesite unit. The results of this study indicate that the geological evolution of the area was controlled by volcanic arc magmatism, resulting in intermediate intrusive and extrusive rocks. The interaction between endogenous processes, particularly magmatism, and exogenous processes, mainly denudation, has produced the present-day hilly to mountainous landscape observed in the study area.
Geologi Blok “X” di Kampung Klasari, Kabupaten Sorong, Provinsi Papua Barat Daya Zulsusiana Lahmuda; Yayu Indriati Arifin; Muhammad Kasim
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Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jrpi.v3i3.40105

Abstract

This study discusses the geological condition of Block “X” in Kampung Klasari, Moi Segen District, Sorong Regency, Southwest Papua Province. The article follows the structure of a regional geological study by focusing on geomorphology, and stratigraphy. The methods used include surface geological mapping, interpretation of topographic and geological maps, lithological observation, and descriptive analysis of field photographs. The results show that the geomorphology of the study area is divided into two units, namely a flat lowland unit and a swamp plain subunit. Stratigraphically, the area is composed of the Sele Claystone Unit, Sele Sandstone Unit, local coal occurrence, and Quaternary alluvial deposits. The relationship between morphology, sedimentary lithology, and fluvial.
Co-Authors Abd. Rahman Maloho Aditya Prasetyo Mangkat Ahmad Iryanto Rompo Ahmad Zainuri Akbar, La Ode Juni Anggun Farwati M Abdullah Aulia Fitrah Ramadhani Aulya Tiara Putri Daud Yusuf Delta Jexica Sianturi Destira Handayani Eksan Fajri Kurniawan Mamonto Fikri Boften Fitrianingsih Antula Fitryane Lihawa Fitryane Lihawa Irene Ester Wowiling Irmawati Irmawati Joni Djakun M. Iqbal Liayong Pratama Moh. Nazer Ismail Mohamad Adrian Saputra Mohamad Dio Pangulu Mohamad Nazer Ismail Mohammad Noorhidayat Baruadi Muhlis Ali Mutiara Nonsi Nani Mardiani Ninasafitri Ninasafitri Noviar Akase Nurfaika Nurfaika Nurmuhniyanti M. Hubaib Permana, Aang Panji Rahmia Rahman Ravit Tahaku Riski I. Pidu Ronal Hutagalung Siti Chusnul Chatimah Nurrahmah Sri Maryati Sutriyono sutriyono Umar Zulkarnain Bakkar Widya Candra Mooduto Yayu Indriati Arifin Zulsusiana Lahmuda