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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 Geosfera: Jurnal Penelitian Geografi JAGE Panrita Inovasi: Jurnal Pengabdian Kepada Masyarakat Geographica: Science and Education Journal Jurnal Riset dan Pengabdian Interdisipliner
Muh Kasim
Universitas 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.
Uji Kualitas Massa Batuan Berdasarkan Metode Rock Mass Rating Desa Longalo, Kabupaten Bone Bolango Moh. Raihan Anwar; Muh. Kasim; Ayub Pratama Aris
Geosfera: Jurnal Penelitian Geografi Vol 4, No 2 (2025): Geosfera : Jurnal Penelitian Geografi
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/geojpg.v4i2.35073

Abstract

This study was conducted in Longalo Village to determine the rock mass quality using the Rock Mass Rating (RMR) method. The analysis was carried out on five field observation segments. The lithology of the study area consists of granitic rocks, most of which have undergone deformation, especially along the slope areas. Geological factors such as the degree of weathering and structural conditions influence the rock mass assessment. The analysis results show that the RMR values range from 48 to 56, which are classified as Class III or fair-quality rock. Based on this classification, the rock mass conditions in the study area are generally fairly stable but are still influenced by structural features and weathering.
Kontrol Topografi Terhadap Distribusi Ketebalan dan Pengayaan Nikel Laterit Desa Torete Morowali Aulya Tiara Putri; Muh Kasim; Ninasafitri Ninasafitri; Alifia Widya Warapsari Badaru
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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.
Analisis Kestabilan Lereng Pada Relokasi Jalan di Bendungan Bulango Ulu, Kabupaten Bone Bolango, Provinsi Gorontalo Alya Rahmawati Panai; Muh Kasim; Ronal Hutagalung; Alifia Widya Warapsari Badaru
Journal of Applied Geoscience and Engineering Vol 5, No 1 : Juni 2026
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jage.v5i1.38921

Abstract

This study aims to evaluate slope stability along the relocated road section of Bulango Ulu Dam, Bone Bolango Regency, Gorontalo Province. The research focuses on geological conditions, rock mass quality, and slope stability using Rock Mass Rating (RMR) and Slope Mass Rating (SMR) methods based on scanline mapping data. Field investigations were conducted on four slope segments (AP1–AP4) by measuring discontinuity characteristics, rock strength, spacing, and groundwater conditions.The results indicate that the rock mass quality of all slope segments falls into Class I–II of the RMR system, categorized as very good to good rock, with RMR values ranging from 70 to 83. SMR analysis shows that all slope segments belong to Class II, indicating stable slope conditions. Kinematic analysis reveals that the dominant potential failure mechanism is toppling failure, with probability of failure values ranging from 10.00% to 23.97%.Although the slopes are classified as stable, the presence of geological structures, particularly discontinuities, contributes to potential instability under certain conditions. Continuous monitoring is therefore recommended to mitigate future landslide risks. The findings provide important insights for slope stability evaluation and infrastructure safety planning in mountainous regions.
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.
Identifikasi Sebaran Kadar Ni Menggunakan Metode Hand Auger Desa Molino, Kabupaten Morowali Utara, Sulawesi Tengah Moh Al-Fayedh; Muh Kasim; Ronal Hutagalung; Alifia Widya Warapsari Badaru
Journal of Applied Geoscience and Engineering Vol 4, No 2 : Desember 2025
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jage.v4i2.33756

Abstract

One of the regions in Indonesia with potential laterite nickel deposits is North Morowali, where the MTosu Formation, composed of Cretaceous-aged ultramafic rocks, is found. This study aims to identify the distribution of laterite and nickel content using data from Hand Auger analysis. The methods used include field observations, Hand Auger sampling, and geochemical analysis through X-Ray Fluorescence (XRF). The research area features two main geomorphological units: structural steep hills and structural gentle hills. Its stratigraphy consists of lherzolite and serpentinite units. The dominant geological structure trends northeast-southwest, following a linear pattern. Laterite distribution in the area is controlled by topography. Nickel content is categorized into three zones: high, medium, and low. XRF analysis of Hand Auger samples indicates that high nickel concentrations are located in the southwest and extend northeast across the study area.
Karakteristik Geomorfologi dan Proses Pembentukannya di Daerah Tilangobula, Kabupaten Bone Bolango Slamet Slamet; Yayu Indriati Arifin; Muh Kasim; Alifia Widya Warapsari Badaru
Journal of Applied Geoscience and Engineering Vol 4, No 2 : Desember 2025
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jage.v4i2.36988

Abstract

This study examines the geomorphological characteristics of Tilangobula Village in East Suwawa District, Bone Bolango Regency, Gorontalo Province, Indonesia, located within the tectonically active Limboto Zone. Through integrated field observations and geospatial analysis—including topographic maps, slope gradients, and drainage patterns—the research identifies structural hills as the dominant geomorphological unit, covering 2.356 km² with elevations ranging from 200 to 600 meters above sea level. The area exhibits two distinct drainage patterns (parallel and trellis) and variable slope gradients (2–140%). Morphogenetic analysis reveals the landscape has been shaped by both endogenic processes (notably oblique faulting, specifically a Normal Left Slip Fault) and exogenic factors (erosion of diorite and quartz diorite intrusions). The lithology comprises intrusive igneous rocks (diorite and quartz diorite), with structural features such as shear joints and faults further influencing the terrain. The findings highlight the interplay between tectonic forces and surface processes in forming the region’s unique structural hills, characterized by V-shaped valleys and steep slopes. This study provides critical baseline data for understanding understudied tectonic landscapes in eastern Indonesia and supports applications in regional geological research and land-use planning. The results underscore the importance of integrating morphographic, morphometric, and morphogenetic analyses to decipher complex geomorphological evolution in tectonically active regions.
Pengaruh Lingkungan Pengendapan terhadap Sebaran dan Kualitas Lapisan Batubara di Desa Kalasari, Papua Barat Daya Yosiyan Daniel Sinaga; Aang Panji Permana; Muh Kasim
Journal of Applied Geoscience and Engineering Vol 4, No 2 : Desember 2025
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jage.v4i2.37129

Abstract

This study was conducted in Kalasari Village, Salawati District, Sorong Regency, Southwest Papua, within the Contract of Work area of PT Megapura Prima Industri. The research integrated field geological observations, detailed lithological and outcrop descriptions, drill core logging and correlation, and laboratory proximate analysis to characterize coal occurrence and quality. Stratigraphic analysis indicates that the study area is composed of two principal lithological units: the Sele Claystone Unit, deposited in backswamp to swamp environments, and the Sele Sandstone Unit, representing floodplain facies. Borehole correlation reveals coal seam thicknesses ranging from 0.3 to 1.82 m, with a general westward thickening trend, reflecting microtopographic variation and peat stability during deposition. The roof and floor of the coal seams are dominantly claystone or clayey sandstone, indicating overbank flood sedimentation that facilitated peat preservation. Proximate analysis shows that the coal is low rank, characterized by calorific values of 3220–3619 kcal/kg (adb), low ash content (1.7–3.8%), very low sulfur content (0.2%), and high total moisture (32–37%). These characteristics are typical of freshwater swamp–backswamp facies within an upper delta plain depositional environment with limited clastic input. The relatively thin overburden further constrained coalification, resulting in low calorific values. Overall, the results demonstrate that coal distribution, seam thickness, and coal quality in the study area are strongly controlled by upper delta plain depositional dynamics, particularly swamp and backswamp facies that governed peat accumulation and preservation.
Co-Authors Abd. Rahman Maloho Aditya Prasetyo Mangkat Ahmad Iryanto Rompo Ahmad Zainuri Akbar, La Ode Juni Alifia Widya Warapsari Badaru Alifia Widya Warapsari Badaru Alya Rahmawati Panai Anggun Farwati M Abdullah Aulia Fitrah Ramadhani Aulya Tiara Putri Ayub Pratama Aris Ayub Daud Yusuf Delta Jexica Sianturi Destira Handayani Eksan Fajri Kurniawan Mamonto Fikri Boften Fitrianingsih Antula Fitryane Lihawa Irene Ester Wowiling Irmawati Irmawati Joni Djakun M. Iqbal Liayong Pratama Maryati, Sri Moh Al-Fayedh Moh. Nazer Ismail Moh. Raihan Anwar 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 Slamet Slamet Sutriyono sutriyono Umar Zulkarnain Bakkar Widya Candra Mooduto Yayu Indriati Arifin Yosiyan Daniel Sinaga Zulsusiana Lahmuda