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Hutagalung, Ronal
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Estimasi Potensi Cadangan Air Tanah Dengan Metode Persamaan Darcy di Desa Pilomonu, Gorontalo Sugianti, Komang; Zainuri, Ahmad; Hutagalung, Ronal
Journal of Applied Geoscience and Engineering Vol 1, No 1 : Juni 2022
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (715.376 KB) | DOI: 10.34312/jage.v1i1.15505

Abstract

This research aims  to know  the  prediction   of potential   for  groundwater reserves.   The  research method  applies  surface  geological mapping  and subsurface  data  collection  with  the 200-span   Schlumberger configuration   geoelectric  method.  The  stratigraphy of the research   area  is  sorted  from  old  to  young,  the  first  is  the  granodiorite   unit,  the sandstone   unit,  and  alluvial   units   are  deposited   inconsistently.   The  geological structure working in the research area has a dominant northwest-southeast direction. The  direction  of. groundwater flow  follows the topography of the  research area, whicb is flowing from the north to the south, where the elevation  of the norlh js higher than the eJevation of the south. The aquifer characteristics in the research area can be divided  into two based  on the mterpretation  of geoelectric  inversion,  such as shallow  aquifer with material  in the  form of sand  and  deep  aquifer with  sand  and gravel material. Prediction  of the  potential  for  groundwater   reserves   is  obtained  from  the interpretation   of geoelectric  data  and data  from  the  calculation  of the  groundwater level in the research area by observing the. conditions  around the research area So, it is obtained a prediction  of potential  for shallow groundwater reserves is 360.444 m3/day or equivalent to  360,444   liters/day,  and  the  prediction   of poteptial   deep groundwater reserves is 66,520.476  m3/day or equivalent to 66:,520,476 liters/day.
Geokimia (XRF) Batuan Andesit Daerah Putiana Dan Sekitarnya, Kecamatan Anggrek, Kabupaten Gorontalo Utara Hemeto, Fasya Ramadhan; Arifin, Yayu Indriati; Hutagalung, Ronal
Journal of Applied Geoscience and Engineering Vol 4, No 1 : Juni 2025
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jage.v4i1.30327

Abstract

This research was conducted in Putiana village and its surrounding area, Anggrek District, North Gorontalo Regency. The geographical position of this area is at 122°47'09.9'' - 122°48'31.9'' East Longitude and 0°48'43.3'' - 0°50'00.3” North Latitude (WGS84 Zone 51N) with a study area of 6 km². The research was conducted with the aim of knowing the geochemistry of andesite rocks and the tectonic order that occurred in the research area. The method used in this research is geological mapping which aims to determine the geological conditions and X-ray fluorescence (XRF) geochemical analysis to determine the chemical content of rocks. The results showed that the stratigraphy of the research area when sorted from old to young includes andesite porphyry units, andesite units, and alluvial sediment units. Based on geochemical analysis, it is known that the magma type of the andesite rock series of the research area is tholeiitic and includes basalt rock types. The magma origin is Island Arc Tholeiitic, with the tectonic setting of the research area occurring in the orogenous zone/subduction zone.
Karakteristik Batugamping Daerah Pilobuhuta Dan Sekitarnya, Kecamatan Batudaa Kabupaten Gorontalo Atima, Karina Febriani K.; Permana, Aang Panji; Hutagalung, Ronal
Journal of Applied Geoscience and Engineering Vol 4, No 1 : Juni 2025
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jage.v4i1.33605

Abstract

Administratively, the research location is in Pilobuhuta Village, Batudaa District, Gorontalo Regency, with an area of 4.8 KM². Limestone is a sedimentary rock formed from calcium carbonate deposits. These rocks are often found in various areas, including in Pilobuhuta Village, Batudaa District, Gorontalo Regency. The Pilobuhuta area has unique geological conditions, with hills that have the potential to be a location for limestone formation. Research on the characteristics of limestone in this area to identify the mineral composition, structure, and texture of existing rocks, as well as to determine the porosity value of limestone in this area. The aim of this research is to map the geological conditions of the Pilobuhuta area and its surroundings, analyze the characteristics of limestone, and analyze the porosity value of limestone in the research area. The research method used is surface geological mapping and porosity analysis in the form of petrographic analysis and specific gravity analysis. The research results show that the research area consists of four limestone facies units, namely mudstone facies, wackestone facies, packstone facies, and grainstone facies. The geomorphological units in this area are divided into two land forms, namely alluvial lowland units and denudational hills. The porosity value of the limestone in the research area ranges from fair to very good. The porosity value in the mudstone facies is in the fair category, the wackestone facies is in the good category, the packstone facies is in the very good category, and the grainstone facies is in the fair category.
Karakteristik Batupasir Formasi Randangan Di Daerah Pancakarsa II Kecamatan Taluditi, Kabupaten Pohuwato Safari, Indriani; Permana, Aang Panji; Hutagalung, Ronal
Journal of Applied Geoscience and Engineering Vol 4, No 1 : Juni 2025
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jage.v4i1.33604

Abstract

The research was conducted in Pancakarsa II Village, Taluditi Subdistrict, Pohuwato Regency. The Objective of this study is to determine the distribution and characteristics of sandstone in the research area. The method employed includes surface geological mapping to identify the geological conditions of the area and comprises alluvial plain units, pyroclastic flow hill units, and denudational hill units. The stratigraphy, arranged from oldest, to youngest, consists of the Gravel Sandstone unit, the Sandstone unit, the Muddy Sandstone unit, and the Pyroclastic Breccia unit. Geological structures were analyzed using lineament analysis, revealing a predominant northeast-southwest structural orientation.the sandstone distribution in the study area shows that the Gravel Sandstone unit occupies approximately 14%, the Sandstone unit is 19%, and the Muddy Sandstone unit is 17%. Petrographic analysis based on mineral composition percentages indicates that sample ST1 is classified as Lithic Arenite, while samples ST7 and ST29 are classified as Lithic Greywacke.
Karakteristik Batupasir Formasi Dolokapa di Desa Dulukapa, Sumalata Timur, Gorontalo Utara Ahmad, Artina; Permana, Aang Panji; Hutagalung, Ronal
Journal of Applied Geoscience and Engineering Vol 4, No 1 : Juni 2025
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jage.v4i1.33556

Abstract

The research location is in the Dulukapa Area, East Sumalata District, North Gontalo Regency. This study aims to analyze the characteristics of Dulukapa Formation sandstone based on petrographic analysis. The research methods used are geological mapping and petrographic laboratory analysis. The results of the study indicate that the distribution of Dolokapa formation sandstone in the Dulukapa area is spread from west to east of Dulukapa Village. The type of sandstone is classified based on the results of gravel, sand, and clay calculations, namely Gravel Sandstone, Sandstone, and Muddy Sandstone. The results of the petrographic analysis indicate that the type of sandstone consists of Lithic Arenite and Lithic Graywacke.
Geologi dan Analisis Pencemaran Logam Berat Menggunakan Indeks Geoakumulasi di Daerah Tulabolo Timur, Bone Bolango Sahido, Nurmasita Dewi; Arifin, Yayu Indriati; Hutagalung, Ronal
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.v4i2.37127

Abstract

The purpose this study is to assess geological conditions and levels of heavy metal pollution arround the artisanal gold mining area in East Tulabolo, East Suwawa District, Bone Bolango Regency, to understand its impact on the environment. This study includes geomorphological, stratighraphic, and geological structural analyses as well as measurements of heavy metal content such as arsenic (As), mercury (Hg), and lead (Pb) in river sediments. The metods used include field surveys, sampling, and laboratory analysis with ICP-MS. While pollution levels were analyzed using the Geoaccumulation Index (Igeo). The result showed that heavy metal concentrations exceeded safe limits, with the highest accumulation found in tailling sediments.. The Igeo analysis indicated a mild level of pollution due to the high concentration levels in the control area. This study emphasizes the need for sustainable waste management and ongoing contamination monitoring, including biota and groundwater sampling, to indetify risks of bioaccumulation and movement of contaminants into the wider eccosystem.
Identifikasi Bidang Gelincir Longsor Berdasarkan Metode Electrical Resistivity Tomography (ERT) di Desa Tolango, Kabupaten Gorontalo Utara Hiola, Tya Ivanka; Zainuri, Ahmad; Hutagalung, Ronal
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.v4i2.32373

Abstract

This study aims to analyze the geological conditions and landslide potential in Tolango Village, Anggrek District, North Gorontalo Regency. The research area is predominantly composed of two main lithological units: andesite and alluvial deposits. Field observations, petrographic analysis, and structural measurements were carried out to determine the geological characteristics. In addition, geoelectrical surveys using the Electrical Resistivity Tomography (ERT) method were conducted to interpret subsurface conditions. The results show that the upper layer (1.25–3.75 m) consists of clayey soil with low resistivity values (8.10–100 Ωm), while the lower layer (up to 15.9 m) is composed of andesite bedrock with higher resistivity values (101–7,600 Ωm). A potential slip surface was identified at the contact between these two layers, which becomes critical when water infiltration increases during the rainy season. Structural features such as thrust faults and joints were also observed, indicating tectonic influence on slope instability. Overall, the integration of geological and geophysical data confirms that the area is highly susceptible to landslides, particularly on steep slopes with impermeable clay-rich layers overlying resistant bedrock.
Identifikasi Sebaran Kadar Ni Menggunakan Metode Hand Auger Desa Molino, Kabupaten Morowali Utara, Sulawesi Tengah Al-Fayedh, Moh; Kasim, Muh; Hutagalung, Ronal; Badaru, Alifia Widya Warapsari
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.
Co-Authors Agustaman, Rukmini Ahmad Zainuri Ahmad, Artina Ahmad, Fadhil Abdillah Al-Fayedh, Moh Aris, Ayub Pratama Atima, Karina Febriani K. Badaru, Alifia Widya Warapsari Dachi, Mirdayanti Damogalad, Yustina Deden, Mokoagow Deden Dewi Rahmawaty Isa Ente, Amargio Saputro Ghaneswara, Oka Arin Hemeto, Fasya Ramadhan Hiola, Tya Ivanka Hisyam, Febrina Intan Noviantari Manyoe Kodung, Mohamad Ashar maloho, chisilia Mane, Moh Sajandri Mokodompit, I Gede Wahyu Mooduto, Tirsya Aygina Jaenet Muarif, Fahmy Idris Muh. Kasim Muhammad Kasim Noviar Akase Nurahman, Ikwan Pade, Dwi Ziana Jamila Permana, Aang Panji Ponto, Nadia Fransisca Puhi, Rian Putra, Moh. Bahrul Zaman Momidu Rahman, Adisty S. Safari, Indriani Sahido, Nurmasita Dewi Sri Maryati Suaib, Angki Sugianti, Komang Sumarjis, Suly Ayu Sunarty Suly Eraku Sutarto, Tiara Anggraeni Puspaningrum Suwandi, Joga Bagaswicaksono Tangkudung, Latifa umar, Risky Usman, Fatma T. Yani, Lisra Yayu Indriati Arifin Yenayo, Hafipa Yuriadi, Bilal Aditya