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All Journal Tunas Geografi Paduraksa : Jurnal Teknik Sipil Universitas Warmadewa Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) AKSIOLOGIYA : Jurnal Pengabdian Kepada Masyarakat UNM Geographic Journal SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jambura Geoscience Review Lamahu: Jurnal Pengabdian Masyarakat Terintegrasi Sustainability (STPP) Theory, Practice and Policy Geosfera: Jurnal Penelitian Geografi JAGE Panrita Inovasi: Jurnal Pengabdian Kepada Masyarakat Jurnal Riset dan Pengabdian Interdisipliner
Noviar Akase
Universitas Negeri Gorontalo
Agriculture, Biological Sciences & Forestry Humanities Astronomy 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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GEOLOGY OF PONELO REGION AND SURROUNDINGS, NORTH GORONTALO REGENCY Akase, Noviar; Supriadi, Supriadi
UNM Geographic Journal Volume 5 Nomor 2 September 2022
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/ugj.v1i1.38243

Abstract

The research area is one of the islands in the District of Ponelo Islands, North Gorontalo Regency, Gorontalo Province. This study aims to determine the geological conditions of the area using the geological mapping method. The results showed that the geomorphology of the study area was divided into 3 units, namely Lava Flow Hills, Denudasional Hills, and Marin Plains. The stratigraphy of the research area is divided into 5 unofficial units sorted from oldest to youngest, namely Sandstone Unit, Conglomerate Unit, Porphyry Andesite Unit, Basalt Lava Flow Unit (Late Pliocene-Early Pleistocene), and Coastal Sediment Unit (Recent age). The geological structures observed were Shear Fracture, Tension, Sheeting Joint, and Columnar Joint. The geological history of the research area starts from the Late Pliocene to Early Pleistocene where the Lokodidi Formation and Pinogu Volcano Formation were formed, resulting in sandstone and conglomerate units (Lokodidi Formation), porphyry andesite units and basalt lava flow units (Pinogu Volcano Formation). Then the alluvial deposition process which is still ongoing today is the result of weathering of rocks in the research area.
GEOLOGI BAWAH PERMUKAAN DESA HUIDU MELITO, KECAMATAN TOMILITO, KABUPATEN GORONTALO UTARA, PROVINSI GORONTALO Abduh, Alan Gani; Zainuri, Ahmad; Akase, Noviar
UNM Geographic Journal Volume 7 Nomor 1 Maret 2024
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/ugj.v7i1.62830

Abstract

The research location is in Huidu Village, Tomilito District, North Gorontalo Regency, Gorontalo Province. The purpose of this study is to determine the geological conditions in the research area (Huidu Melito Village, Tomilito District) and analyze the cross-section of subsurface geology of the 2D model of the research area. The research methods carried out include surface data retrieval, subsurface data retrieval, and drill data retrieval. Analysis stages such as petrology, geoelectric analysis and drill sample analysis. The results obtained Geomorphology of the research area are in the form of Denudational Plain Units and Alluvial Plain Units. Stratigraphy in the study area is arranged from old to young age in the form of andesite units, volcanic breccia units and alluvial deposit units. Based on surface geology and subsurface geoelectric surveys, subsurface lithology of the study area consists of 6 rock layers including the first layer in the form of Top Soil, the second layer is the Breccia layer, the third layer is the Sand layer (Aquifer), the fourth layer is the Breccia layer, the fifth layer is the Andesite layer, the sixth layer is the Sand layer (Aquifer).
ANALISIS KETEBALAN ENDAPAN LATERIT DAN PENGARUHNYA TERHADAP KADAR NIKEL DI DAERAH KONINIS, KABUPATEN BANGGAI Nonsi, Mutiara; Arifin, Yayu Indriati; Akase, Noviar
UNM Geographic Journal Volume 7 Nomor 2 September2024
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/ugj.v7i2.66090

Abstract

The Koninis region has diverse morphological features accompanied by the formation of nickel laterite deposits, leading to variations in the thickness of these deposits. The research location is administratively part of Banggai Regency, at coordinates 05°0'10" S and 122°15'40" E, within the concession area of PT. Koninis Fajar Mineral, covering approximately 138 hectares. This study aims to understand the morphological conditions and analyze the correlation between the thickness of nickel laterite deposits and the existing morphological conditions in the research area using methods such as geological mapping, petrographic analysis to determine the lithology of the research area, X-Ray Fluorescence (XRF) geochemical analysis to identify the nickel laterite ore zones, and studio analysis. The results indicate a range of laterite thicknesses, from a minimum of 6.5 meters to a maximum of 34 meters, with varying thicknesses within each zone. Analysis shows that thicker saprolite corresponds to higher nickel content, while thicker limonite correlates with lower nickel content.
STUDI GEOLOGI DAERAH TIHENGO DAN SEKITARNYA KECAMATAN PONELO KEPULAUAN KABUPATEN GORONTALO UTARA Hidayansya, Taufik; Arifin, Yayu Indriati; Akase, Noviar
UNM Geographic Journal Volume 7 Nomor 1 Maret 2024
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/ugj.v7i1.65593

Abstract

The research titled Geology of the Tihengo Area and Surroundings, Ponelo Kepulauan District, North Gorontalo Regency was conducted with the aim of understanding the geomorphological, stratigraphic, and geological structural conditions of the area using geological survey or mapping methods. Based on the research findings, the Tihengo area and its surroundings are located at an elevation of 0-125 meters above sea level, featuring varied morphology ranging from lowlands to steep hills. The region is predominantly comprised of residential, agricultural, and plantation lands, with vegetation generally classified as sparse to moderate. The relief in this area includes plains to steep hills with "V"-shaped valleys, formed due to the influence of both endogenous and exogenous geomorphological processes, including tectonic activity, magmatism, as well as ongoing erosion and sedimentation. Slope analysis shows a range of slopes from flat to very steep, with varying percentages of land area. The geomorphology of this area is divided into three main units: volcanic hill unit, denudational hill unit, and coastal plain unit. The stratigraphy of the research area consists of a sequence of andesite rocks, conglomerates, sandstones (coarse, medium, and fine), as well as coastal alluvial deposits. The geological structure is identified based on lineaments observed on DEMNAS imagery, with a general northeast-southwest orientation
STUDI DIAGENESIS BATUAN KARBONAT DENGAN METODE PETROGRAFI DESA KAYUBULAN KECAMATAN BATUDAA PANTAI KABUPATEN GORONTALO Pakaya, Siti Aqdawiya; Indriati Arifin, Yayu; Akase, Noviar
UNM Geographic Journal Volume 7 Nomor 2 September2024
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/ugj.v7i2.68261

Abstract

Batugamping merupakan batuan sedimen yang dapat memberikan informasi penting tentang lingkungan pengendapan dan umur geologi suatu daerah. Penelitian ini berfokus pada diagenesis batugamping di Desa Kayubulan, Kecamatan Batudaa Pantai, Kabupaten Gorontalo, dengan tujuan menganalisis kondisi geologi, mikrofasies, dan proses diagenesis yang terjadi. Metode yang digunakan mencakup analisis petrografi dan mikropaleontologi. Hasil penelitian mengidentifikasi dua satuan geomorfologi utama: Satuan Perbukitan Denudasional dan Satuan Dataran Aluvial dengan pola aliran parallel. Daerah penelitian memiliki empat fasies: Packstone, Grainstone, Boundstone, dan Endapan Aluvial. Struktur geologi menunjukkan arah dominan Utara-Selatan, sedangkan sesar turun berorientasi N 70⁰/32⁰ E, mengindikasikan ketidakparalelan antara keduanya, dengan sesar turun menyilang arah kelurusan lereng sekitar 70° dari sumbu Utara-Selatan. Berdasarkan Standar Microfasies (SMF), fasies Boundstone termasuk ke dalam SMF-7 Organic Boundstone, Platform-Margin “Reef” dengan lingkungan pengendapan FZ 5 Terumbu Tepi Paparan (Platform-Margin Reefs), dan SMF-18 Grainstone/Packstone with Abundant Foraminifera or Algae yang meliputi fasies Packstone dan fasies Grainstone dengan lingkungan pengendapan FZ 7 Laut Terbuka (Open Marine). Proses diagenesis yang terjadi di daerah penelitian ini adalah pelarutan (dissolution), neomorfisme, dan sementasi. Berdasarkan hal tersebut, dapat diketahui bila lokasi penelitian terbentuk pada zona transisi back reef hingga zona reef flat.
Geomorfologi Daerah Tambang Emas Rakyat Juriya dan Sekitarnya, Kecamatan Bilato, Kabupaten Gorontalo Rauf, Jayanti; Arifin, Yayu Indriati; Akase, Noviar
Journal of Applied Geoscience and Engineering Vol 3, No 2 : Desember 2024
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jage.v3i2.30322

Abstract

This study examines the geomorphological characteristics of the Juriya people's gold mining area, Gorontalo Regency, which includes topographic variations, slopes, river flow patterns, river stadia, and geomorphological units. The research area is divided into four main morphometry types: Lowland, Inland Lowland, Low Hill, and Hill. Slope analysis identifies zones ranging from flat to very steep, indicating different levels of slope stability and areas with a high risk of erosion. The results of the river flow pattern analysis showed the dominance of parallel and dendritic patterns, with a "V" shaped valley in the young stadia and a "U" in the adult stadia. The geomorphological units in the study area consist of the Volcanic Hills Unit, the Denudional Hills Unit, and the Aluvial Plains Unit, each of which has unique lithological and topographic characteristics and affects land use and environmental stability. This study shows that mining activities can increase the risk of erosion and land degradation in areas that are not protected by vegetation, especially on steep slopes. This research contributes by providing geomorphological data that can be used as a reference for sustainable environmental planning and management in the mining area. These results can strengthen efforts to mitigate environmental risks and support responsible land use in people's mining areas.
Analisis Karakteristik Alterasi Pada Daerah Tolotio Kecamatan Bonepantai Kabupaten Bone Bolango Rachman, Arianzah Rizki; Kasim, Muhammad; Akase, Noviar
Journal of Applied Geoscience and Engineering Vol 3, No 2 : Desember 2024
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jage.v3i2.28148

Abstract

The research location is in the Tolotio area, Bonepantai District, Bone Bolango Regency. This study aims to analyze the characteristics of alteration in the research area. There are a total of 30 random samples taken from outcrops at the research location, using the geological mapping method and geochemical analysis (X-Ray Diffraction) XRD. The results of the study in the form of geomorphological conditions are divided into three morphological units, namely intrusion hill units, steep-sloping volcanic hills and alluvial plain units. The stratigraphy in the research area is divided into three rock units, namely porphyry diorite rock units, crystal tuff rock units and alluvial sediment units. The geological structure of the research area is in the form of faults and fractures, where the fault is a left normal slip fault to the right with a plane structure value of N130 ° E / 56 ° while the line structure is N257 ° E / 44 ° and a rake value of 47 ° and tension fractures that have the main stress orientation direction of northeast - southwest. The alteration types in the research area are divided into four types of alteration, namely propylitic alteration type, phyllic alteration type, argillic alteration type and advanced argillic alteration type.
Geomorphological Analysis of the Right Bank Area of Bulango Ulu Dam, Gorontalo Province Using Geological and DEM-Based Terrain Evaluation Suma, Muhamad Danial; Arifin, Yayu Indriati; Akase, Noviar
Jambura Geoscience Review Vol 7, No 2 (2025): Jambura Geoscience Review (JGEOSREV)
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jgeosrev.v7i2.28127

Abstract

This study investigates the geomorphological characteristics of the right bank area of the Bulango Ulu Dam in Gorontalo Province to support infrastructure planning, risk assessment, and sustainable land use. Employing integrated methods involving field observations and Digital Elevation Model (DEM) analysis, the research identifies two principal geomorphological units: Structural Low Hills (S1) and Fluvial Plains (F1). These units are shaped by the combined influence of endogenic processes, such as tectonic uplift and structural deformation, and exogenic processes, including fluvial erosion, sedimentation, and weathering. Lithological analysis revealed the presence of three main rock units diorite, granodiorite, and alluvial deposits each contributing to the area's terrain diversity and physical stability. Morphometric classification indicates that steep (30–70%) and very steep (70–140%) slopes dominate more than half of the study area, highlighting a high susceptibility to landslides and erosion hazards, particularly during peak rainfall seasons. The identification of a sub-dendritic drainage pattern suggests that geological structures play a vital role in directing surface runoff and sediment transport. The novelty of this research lies in its localized and detailed geomorphological assessment, which had not been previously conducted on the dam’s right bank. The findings have practical implications for dam safety, slope reinforcement strategies, and regional spatial planning under dynamic geological conditions.
GEOLOGI BAWAH PERMUKAAN DESA DAMBALO KECAMATAN TOMILITO KABUPATEN GORONTALO UTARA Male, Cindi Claudia; Zainuri, Ahmad; Akase, Noviar
Sustainability (STPP) Theory, Practice and Policy Vol. 4 No. 1 (2024): Sustainability (STPP) Theory, Practice and Policy June Edition
Publisher : Pusat Kajian Berkelanjutan UIN Sulthan Thaha Saifuddin Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30631/sdgs.v4i1.2424

Abstract

Dambalo Village, Tomilito District, North Gorontalo Regency, Gorontalo Province, is the designated research area listed in the administrative records. The main objectives of this research are to determine the surface and subsurface geology, understand the geological conditions of the research area, and analyze the cross-section of subsurface geological layers. The study employs the Schlumberger configuration geoelectric method to examine the subsurface geological cross-section. The researchers used a combination of geological surveys and subsurface data surveys, collecting data on surface geological features, outcrop observations, and resistivity measurements. The research area features a single landform unit, the denudational plain, and its stratigraphy includes a lithostratigraphic unit, Volcanic Breccia. The study area comprises four rock layers: the first layer is topsoil (passive clay), the second layer is sand, the third layer is breccia, and the fourth layer is sand. These conclusions are supported by geological and geoelectric data, demonstrating the effectiveness of integrating surface and subsurface surveys to provide a comprehensive understanding of the geological structure.
Volcano Facies in Labanu Region, Tibawa District, Gorontalo Regency Antoni, Isan; Permana, Aang Panji; Akase, Noviar
UNM Geographic Journal Volume 8 Nomor 1 Maret 2025
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/ugj.v1i1.62721

Abstract

Located in Labanu Village, Tibawa District, Gorontalo Regency. The rocks contained in the study area are rocks originating from the Bilungala Volcano rock formation. This study aims to identify lithofasies of volcanic rocks based on differences in composition, structure, and texture. The method used is Measured Section (MS), in reducing the cross-section of measured stratigraphy, petrographic and petrological analysis carried out to divide the lithofasies of volcanic rocks. Lithofasies in the study area are divided into two lithofasies, namely: Lava lithofasies and pyroclastic lithopasies. In andesite facies lava lithofasies characterized by greenish-gray color, porphyritic texture, massive structure, degree of crystallization in andesite rocks is holocrystalline Most are composed of crystals, porphyritic texture, inequigranular crystal forms in these rocks are anhedral to subhedral, mineral compositions found megascopically include: plagioclase, pyroxene, hormblend, and a little pyroxene epidote and hormblend present as phenocryst,  and there is a small amount of secondary minerals in the form of epido. In pyroclastic lithofasies, lapilli facies has a characteristic light brown color, grain size (2 mm to 64 mm), the shape of the grain on this patuan is rounded and angled, it is interpreted that the deposition of this rock is some distance from the sembernya based on the size of the rock grain with the mass of the glass volcanic base, silica nin carbonate cement, poor sortation, open packaging, and has been compacted. Volcanic breccia facies have characteristics, among others: the color of light ash, the grain in this rock is gravel to kerakal (block), with angled grain bektuk responsibility until it is round (polymic), can be interpreted that this rock is far enough from the source based on the shape of the grain of the rock, pack it on this rock open container, poor sortation, igneous rock fragments in the form of andesite, non-carbonate silica cement, and glas volcanic matrix. While tuff facies has characteristics, brown color, grain size in this rock is fine, semaen in this rock is carbonate cement, closed packaging, has good sorting, weathered oxide (which is characterized by orange color), this rock has been compacted.
Co-Authors Abd Kadir Mubarak A Amin Abduh, Alan Gani Ahmad Iryanto Rompo Ahmad Zainuri Ahmad Zainuri Antoni, Isan Arifin, Yayu Aris, Ayub Pratama Cindi Claudia Male Dachi, Mirdayanti Dai, Elan Daud Yusuf Deden, Mokoagow Deden Djamal Adi Nugroho Uno Ente, Amargio Saputro Fandji Marfian Fitryane Lihawa Hamid, Rinto Saputra Hermawan, Riki Hidayansya, Taufik Hutagalung, Ronal Indriati Arifin, Yayu Intan Noviantari Manyoe Irene Ester Wowiling Irmawati Irmawati Irwan Muis K Badaun, Nur Azizah Kayambo, Muhammad Ridho Lahay, Muamart Lasahido, Moh. Syach L. M. Iqbal Liayong Pratama Male, Cindi Claudia Mamonto, Ahmad Firly Mamonto, Fajri Kurniawan Matoka, Putri Aprilia Moehammad Jasim Agi Saputra Moh. Nazer Ismail Mokodompit, I Gede Wahyu Muh Kasim Muhammad Iqbal Asiki Muhammad Kasim Muis, Irwan Mutiara Nonsi Nonsi, Mutiara Nurahman, Ikwan Nurmuhniyanti M. Hubaib Pade, Dwi Ziana Jamila Pakaya, Siti Aqdawiya Panai, Irdiansyah Paputungan, Ulfanna Permana, Aang Panji Ponto, Nadia Fransisca Puhi, Rian Puhi, Riyan Putra, Moh. Bahrul Zaman Momidu Rachman, Arianzah Rizki Rahman, Adisty S. Rauf, Jayanti Rivai, Alya Sri Andini Rizky Hizrah Wumu Robot, Ladya Cheryl Ronal Hutagalung Rusdi, Infithar Hi Sahidah, Aril A.H Sino, Widya Indriani H. Siti Fatimah Sri Maryati Sri Maryati Suma, Muhamad Danial Sumarjis, Suly Ayu Sune, Nawir Supriadi Supriadi Syahrizal Koem Tangkudung, Latifa Umar Zulkarnain Bakkar Yani, Lisra Yayu Indriati Arifin