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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
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Journal : Jambura Geoscience Review

 1 
Studi Fasies Formasi Endapan Danau Untuk Menentukan Lingkungan Pengendapan Danau Limboto Abd Kadir Mubarak A Amin; Yayu Indriati Arifin; Noviar Akase
Jambura Geoscience Review Vol 1, No 2 (2019): Jambura Geoscience Review (JGEOSREV)
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jgeosrev.v1i2.2056

Abstract

The research area located in the lowland zone and the corrugated hilly zone which is dominated by sedimentary rocks. Therefore, this study aims to determine the geological features of the research area and the study of depositional environmental facies of the Lake Deposits Formation as an analysis of the depositional environment of Limboto Lake. The research method used is the surface geological mapping, measuring a section of stratigraphic and laboratory analysis. Field data consists of stratigraphical features of the research area. Laboratory analysis consists of petrography and stratigraphy-sedimentology analysis. It can be concluded facies and stratigraphy of research from older to youngest, consists of clastic limestones unit formed in Late Miocene-late Early Pliocene age, reef limestones formed in Late Miocene-early Late Pliocene age, sandstones unit formed in Late Pliocene-Pleistocene age, clay unit, and sandy clay unit are deposited in Holocene. Overall the study site consisted of marine, transitional and terrestrial deposition environment with Lake Deposits Formation facies is lake margin clastic deposits and meandering-stream environment deposits.
Analisis Tingkat Kerentanan Longsor Daerah Muara Sungai Bone Kota Gorontalo Muhammad Iqbal Asiki; Sri Maryati; Noviar Akase
Jambura Geoscience Review Vol 1, No 2 (2019): Jambura Geoscience Review (JGEOSREV)
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jgeosrev.v1i2.2474

Abstract

In Gorontalo City there have been 11 landslides in 2017 which are spread in 3 sub-districts namely Hulonthalangi, Kota Barat, and Dumbo Raya. While in 2018 there was a landslide in Tenda village which claimed two lives. The research site is located in coordinate 00°29'00" - 00°31’51" N and 123°3'00" - 123°5'27"  E with the wide of area 2,531 Ha consisting of 1,745 Ha of the mainland and 786 Ha of the sea. The research area administratively is located in Dumbo Raya Sub-district, Gorontalo city, Gorontalo Province. The purpose of this study was to determine the level of landslide susceptibility in the study area and make zonation maps of landslide prone area.  This research method applied in this study was integration of field survey and GIS analysis. The parameters which influence the landslide are lithology, precipitation, slope, lineament density, type of soil, and the land use. Based on the analysis of landslide susceptibility, the level of susceptibility in the research site consists of 3 classes; low, moderate, and high. The low class of landslide susceptibility has the area of 217.46 Ha, the moderate class of landslide susceptibility has the area of 338.93 Ha with the biggest spread is in Leato Selatan village; 102.68 Ha. The high class of landslide susceptibility has the area of 1,188.70 Ha with the biggest spread in Leato Selatan Village; 288.66 Ha.
Karakteristik Akuifer Menggunakan Metode Geolistrik Resistivity Di Kecamatan Kota Tengah Kota Gorontalo Rizky Hizrah Wumu; Ahmad Zainuri; Noviar Akase
Jambura Geoscience Review Vol 4, No 1 (2022): Jambura Geoscience Review (JGEOSREV)
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jgeosrev.v4i1.12752

Abstract

Kota Tengah Subdistrict has the highest population density in Gorontalo City, with a population density of 6,755 people/km2. This high population density requires a large amount of water to meet the needs of the population, where one form of fulfillment is taken from groundwater. For this reason, it is necessary and important to know the characteristics of aquifers. This study aims to determine the characteristics of groundwater aquifers in the Kota Tengah Subdistrict. The method used is the resistivity geoelectric method to obtain aquifer characteristics in the form of material type (lithology), depth, and thickness of the aquifer. Based on the geoelectrical analysis in TS 01 there are 4 layers, namely topsoil, clay sand, sand, and clay; TS 02 contains topsoil, sand, and clay layers; TS 03 contains topsoil, sand, and clay. The study found that the lithology of the near-surface layer in the Kota Tengah subdistrict can be classified into aquifers and aquicludes. The aquifer layer is formed by sand-sized sedimentary deposits that have high permeability while the aquiclude is clay-sized which is impermeable. The aquifer layer was found starting from a depth of 0.57 m. The average thickness of the aquifer layer was 13.8 m which is interpreted as an unconfined aquifer. This study also found other deeper aquifer layers as confined aquifers that can not be further interpreted due to the limitations of the method used.
Karakteristik Alterasi dan Mineralisasi Hidrotermal Daerah Hulawa, Gorontalo, Indonesia Umar Zulkarnain Bakkar; Muhammad Kasim; Noviar Akase; Ahmad Iryanto Rompo
Jambura Geoscience Review Vol 2, No 1 (2020): Jambura Geoscience Review (JGEOSREV)
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jgeosrev.v2i1.2472

Abstract

Gold is one of the precious metals with high economic value, so the exploration process becomes an important stage to find new resources so that gold production remains optimal. The research was aimed at investigating the geological condition and characteristics of hydrothermal alteration and mineralization developed in the research site. The research site was included in the area CoW of PT. Gorontalo Sejahtera Mining exactly lied in Hulawa Village, Gorontalo, Indonesia. This research integrated the fieldwork with laboratory tests and analysis, including petrography, Analytical Spectral Devices, and mineragraphy. Based on data that had been conducted and data analysis results, it can be concluded that the research site consisted of lithology in the form of Oligocene granodiorite and Pliocene rhyodacite and diatreme breccia that rolled as host rock’s mineralization. Normal right-slip fault directing E-W is interpreted as a pre-mineralization structure, while normal left-slip fault directing NNE-SSW is interpreted as syn-mineralization structure or controlling structure during alteration and mineralization process. Alteration developed in research area consisted of the phyllic zone (sericite + quartz ± pyrite ± montmorillonite ± chlorite ± carbonate), argillic zone (illite + kaolinite ± smectite ± montmorilonite), and chloritic zone (chlorite + carbonate + pyrite ± quartz ± illite ± sericite ± montmorillonite). Hydrothermal deposits controlled by geological structure and volcanic mechanism. Mineralization in the research site was found in stockwork quartz veins and hydrothermal breccia, and some were found in dissemination with ores such as pyrite, chalcopyrite, arsenopyrite, galena, sphalerite, bornite, covelite, gold, and electrum. Based on its alteration and mineralization characteristics, the epithermal deposits in the research site was the type of low sulphidation deposite in-depth level in the model of open-vein and breccia.
Study of Petrogenesis Andesite Rock in Bualemo Region, North Gorontalo Regency Based on XRF Geochemistry Analysis Fandji Marfian; Aang Panji Permana; Noviar Akase
Jambura Geoscience Review Vol 5, No 1 (2023): Jambura Geoscience Review (JGEOSREV)
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jgeosrev.v5i1.16941

Abstract

The research area is Bualemo Village, Kwandang District, North Gorontalo Regency. With coordinates 0˚ 47' 10" - 0˚ 48' 40" North Latitude and 122˚ 55' 0" - 122˚ 57' 5" East Longitude with an area of about 10 km2. This study aims to determine the petrogenesis of andesite rocks and the tectonic setting in the study area. The method used in this study is a mapping method to determine the geological conditions of the research site and X-ray fluorescence (XRF) geochemical analysis to determine the chemical content of rocks. The results showed that the stratigraphy of the study area, sorted from oldest to youngest, was an andesite unit, an altered andesite unit, and an alluvial deposit unit. The geological structure in the study area is a tension joint with a general direction of relative north-south. The tension joint structure data analysis results have a value of N 171oE/79o. Based on geochemistry results, it was found that the type of magma is tholeiitic, with its name basalt and basaltic trachyte andesite. The origin of the magma is island arc tholeiitic and island arc calc-alkaline basalt, with the tectonic setting of the study area being subduction between two oceans, namely between the Sulawesi sea plate and the Sula plate.
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.
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