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All Journal UNM Geographic Journal JRST (Jurnal Riset Sains dan Teknologi) Jurnal GEOSAPTA Jambura Geoscience Review Journal Of Khairun Community Services Journal of Geoscience Engineering and Energy (JOGEE) JAGE Jurnal Riset dan Pengabdian Interdisipliner

Hutagalung, Ronal

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Author-ID : 1558679

Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics Social Sciences Other

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ZONASI LONGSOR DI DESA TALUMELITO KECAMATAN TELAGA BIRU KABUPATEN GORONTALO PROVINSI GORONTALO: LANDSLIDE HAZARD ZONATION OF TALUMELITO VILLAGE, TELAGA BIRU DISTRICT, GORONTALO REGENCY, GORONTALO PROVINCE Maryati, Sri; Hutagalung, Ronal; maloho, chisilia
Journal of Geoscience Engineering and Energy VOLUME 4, NOMOR 2, AGUSTUS 2023
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jogee.v4i2.15891

Daerah penelitian secara administratif berada pada titik koordinat 123°0’25” - 123°1’31” BT dan 00°37’33” - 00°38’35” LU (WGS 84 Zona 51N). Lokasi penelitian memiliki luas wilayah mencapai 9 km². Maksud dari penelitian ini yaitu menggunakan sistem informasi geografis (SIG) dan overlay peta kemudian di tambah dengan survey geologi di Desa Talumelito, Kecamatan Telaga Biru, Kabupaten Gorontalo, Provinsi Gorontalo. Tujuan dari penelitian ini yaitu Mengetahui litologi penyusun daerah penelitian, Membuat peta dari setiap parameter, Melakukan tumpang susun dari setiap parameter, Membuat peta zonasi kerawanan tanah longsor. Metode yang digunakan dalam penelitian ini menggunakan metode geologi lapangan dan analisis sistem informasi geografis. Parameter yang digunakan pada penelitian ini parameter kemiringan lereng, penggunaan lahan, geologi, dan curah hujan. Hasil penelitian menunjukan bahwa daerah penelitian di kategorikan zona rawan longsor tingkat sedang yang terdiri dari material peyusunya alluvial (material Lepas). The research area is administratively located at the coordinates of 123°0'25" - 123°1'31" east longitude and 00°37'33" - 00°38'35" north longitude (WGS 84 Zone 51N). The research location has an area of 9 km². The purpose of this study is to use a geographic information system and map overlay and then add a geological survey Talumelito village, Telaga Biru district, Gorontalo regency, Gorontalo Province. The purpose of this research is to know the lithology that makes up the research area, make maps of each parameter, overlay maps, and make zonation maps. The method used in this research is field geology method and geographic information system analysis. The parameters used in this Which includes every parameter of slope, land use, geology, and rainfall. The results showed that the research area was categorized as a moderate landslide-prone zone consisting of alluvial milk material (release material).

Karakteristik Batuan Dasar Formasi Gabro Daerah Keramat Kabupaten Boalemo Damogalad, Yustina; Permana, Aang Panji; Hutagalung, Ronal; Manyoe, Intan Noviantari
JRST (Jurnal Riset Sains dan Teknologi) Volume 8 No. 1 Maret 2024: JRST
Publisher : Universitas Muhammadiyah Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/jrst.v8i1.17323

Secara administratif wilayah penelitian terletak di Desa Keramat dan sekitarnya, Kabupaten Boalemo, Provinsi Gorontalo. Daerah penelitian tersususun oleh batuan terobosan dari formasi Batuan Gabro (Teog), Formasi Batuan Granodiorit Bumbulan (Tpb) dan Formasi Aluvium (Qal). Kondisi geologi daerah penelitian sangat kompleks sehingga menarik diteliti karena belum pernah dilakukan penelitian secara detail. Tujuan penelitian yang akan dicapai adalah mengetahui karakteristik mineralogi dan tekstur serta proses terbentuknya batuan dasar berdasarkan data pemetaan geologi dan data petrografi. Metode penelitian yang digunakan untuk mencapai tujuan penelitian tersebut terdiri dari survei geologi lapangan, penelitian laboratorium, dan pengolahan studio. Metode observasi lapangan adalah metode yang berfokus pada pengamatan kondisi geologi di daerah penelitian. Kemudian data-data yang diperoleh dianalisis menggunakan metode penelitian laboratorium berupa analisis petrografi dengan sayatan tipis. Hasil penelitian menunjukkan bahwa Morfologi daerah penelitian terbagi menjadi 2 satuan yaitu satuan perbukitan rendah struktural dan dataran aluvial. Stratigrafi daerah penelitian dibagi menjadi 2 satuan diurutkan dari tua ke muda yaitu satuan gabro, satuan granodiorite dan satuan endapan aluvial. Struktur geologi yang bekerja pada daerah penelitian berupa kekar gerus yang memiliki arah barat laut-tenggara hingga timur laut-barat daya. Berdasarkan hasil analisis petrografi yang telah dilakukan maka diperoleh hasil karateristik batuan gabro sebagai batuan dasar pada formasi gabro adalah berwarna putih kecokelatan (PPl), berwarna abu-abu hingga orange (XPL), hypokristalin, ukuran kristal (1-3 mm), bentuk dan hubungan antar kristal subhedral. Tekstur umum ekuigranular faneritik dengan komposisi mineral penyusun batuan yaitu plagioklas, K-feldspar, biotit, piroksen, mineral opak dan mineral alterasi penyusun batuan serisit. Batuan ini merupakan bagian dari jalur magmatisme pada zaman Eosen.

Kajian Lingkungan Pengendapan Batugamping Daerah Leato Selatan Kota Gorontalo Berdasarkan Analisis Mikrofasies Permana, Aang Panji; Hutagalung, Ronal; Eraku, Sunarty Suly; Isa, Dewi Rahmawaty; Suaib, Angki
Geosapta Vol 9, No 1 (2023): JANUARI 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jg.v9i1.13430

Penelitian batugamping di kawasan selatan Gorontalo dan Teluk Tomini baru secara regional. Salah satunya penelitian singkapan batugamping di wilayah Leato Selatan, Kota Gorontalo. Penelitian ini menarik karena penyebaran batugamping sangat unik berada di antara dominan batuan vulkanik dan tersingkap pada elevasi yang tinggi sehingga pengaruh tektonik sangat kuat. Evolusi tektonik di daerah Gorontalo menjadi tantangan dalam penelitian ini dalam memberikan informasi geologi baru. Tujuan penelitian ini mengkaji lingkungan pengendapan batugamping daerah Leato Selatan Kota Gorontalo berdasarkan analisis mikrofasies. Metode penelitian yang digunakan terdiri dari survei geologi dan pengamatan petrografi. Mengacu hasil penelitian dan analisis menunjukan nama batugamping pada daerah penelitian terdiri dari mudstone dan wackestone dengan lingkungan pengendapannya berdasarkan standart microfacies masuk daerah toe of slope yang merupakan facies zone 3.

Bentuk Lahan Geomorfologi Di Daerah Gunungapi Ambang, Bolaang Mongondow Timur Sumarjis, Suly Ayu; Arifin, Yayu Indriati; Hutagalung, Ronal; Akase, Noviar; Manyoe, Intan Noviantari
Journal of Applied Geoscience and Engineering Vol 2, No 1 : Juni 2023
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jage.v2i1.19405

Sulawesi or Celebes is located in the central part of the Indonesian archipelago which has interesting geological potential to be developed. One of this interesting area is known as Ambang volcano area. Ambang volcano is one of the active volcanoes in North Sulawesi. Administratively, the research area is located in Bongkudai Baru Village, Modayag sub-district, East Bolaang Mongondow district, mapped at coordinates N 0°45'58.89'' and E 124°24'13.04''. This study is aimed to analyze volcanic geomorphological units using satellite imagery and surface geological mapping. The results showed that the geological conditions of the study area consist of 4 lithologies i.e volcanic breccia, andesite, agglomerate and sandstone rocks. Based on the morphographic and morphogenetic analysis of the study area which refers to the Van Zuidam and Verstapen 1985 classification, the study area is divided into five landforms i.e fumarole and solfatara ambang volcanic, ambang volcanic cone, plains and fluvial slope feet of ambang volcano, denudational hill ambang volcanoes and lake units.

Lingkungan Pengendapan Batugamping Daerah Oluhuta-Olele Kabupaten Bone Bolango Berdasarkan Karakteristik Mikrofasies Mane, Moh Sajandri; Permana, Aang Panji; Hutagalung, Ronal; Aris, Ayub Pratama
Journal of Applied Geoscience and Engineering Vol 3, No 1 : Juni 2024
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jage.v3i1.26917

Gorontalo has two types of limestone, namely reef limestone and clastic limestone. The research area has several formation units, such as Tinombo, Bilungala, Bone Diorite, Pinogu Volcano, and reef limestone. This research produces an analysis of the limestone depositional environment based on microfacies characteristics, as well as identifying the age of the limestone in the area. This research focuses on the Oluhuta and Olele areas in Bone Bolango Regency. Limestone, as the main focus, is a sedimentary rock with calcium carbonate as the main element. The constituent components involve granules, matrix and cement. Microfacies, the study of rock properties through thin sections, helps identify biological and mineral composition and interpret limestone qualities. The depositional environment of carbonate rocks is determined based on component abundance, grain shape, matrix origin, cement type, and rock packing. The methods used are petrography and micropaleontology. The results of research in the Olohuta - Olele area show that the geological conditions include geomorphological units of alluvial plains, coral reef plains and pyroclastic flow hills. The study area consists of Rudstone facies. Based on petrographic analysis, the research area is included in SMF-5, formed in the FZ-4 environment. Based on micropalentological analysis, the Rudstone Facies is aged N12 – N15 (middle Miocene – late Miocene).

Analisis Kelas Massa Batuan Terhadap kestabilan Lereng Bendungan Lolak Menggunakan Metode Rock Mass Rating Muarif, Fahmy Idris; Maryati, Sri; Hutagalung, Ronal
Journal of Applied Geoscience and Engineering Vol 1, No 2 : December 2022
Publisher : Universitas Negeri Gorontalo

The process of displacement or movement of slope stability constituent materials followed by the sedimentation process of the deposited material is a landslide event. The negative impact of the landslide if it occurs in residential areas, can cause material and infrastructure losses, or economic losses in the affected area if the landslide products can cover the road access. The purpose of this study was to determine the level of rock mass and its effect on slope stability, and to determine the rock mass quality of the study area. The research area is located in Lolak Dam. Based on the results of the analysis carried out, the conclusion is that the observations starting from station 1, station 2, station 3, and station 4 show moderate-good rock strength. The condition of the discontinuity shows continuity of less than 1 meter, the aperture of discontinuity are open to a bit wide, with varying roughness, namely coarse, and slightly coarse, with the infilling material calcite veins. The level of weathering starts from weathered to very weathered. Groundwater conditions are dominated by discontinuities that have a dry level. Based on the discontinuity characteristic, station 1 has good rock mass class, station 2 has medium rock mass class, station 3 has medium rock mass class, and station 4 has good rock mass class. this value can be used as a reference value for the next stage of decision making regarding the strengthening of the slopes in the study area.

Potensi Geodiversity Daerah Oluhuta Kecamatan Kabila Bone Kabupaten Bone Bolango Menggunakan Asesmen Ponto, Nadia Fransisca; Arifin, Yayu Indriati; Hutagalung, Ronal; Akase, Noviar; Manyoe, Intan Noviantari
Journal of Applied Geoscience and Engineering Vol 2, No 2 : Desember 2023
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jage.v2i2.22992

Geotourism emphasizes the beauty, uniqueness, rarity and wonder of natural phenomena as an impetus for the development of geology-based tourism. The many variations in geological aspects fulfill the potential geodiversity value in the area. The aim of this research is to identify and assess the potential for geodiversity in Oluhuta Village. The research location has coordinates 0° 25' 0" - 0° 27' 0" N and 123° 8' 30" - 125° 10' 30" E. There are several research methods used in the form of field observations, laboratory research, and processing studios. The geological data obtained includes lithology, geomorphology and assessment of geodiversity aspects. The results of the research show that the location of the research area has lithology namely reef limestone and geomorphology namely reef terrace plains. The research area has a site called the Lautan Terangkat Site. This site has geological components including rocks and natural landscapes. Lautan Terangkat site have several assessment criteria with a total number and scientific assessment classification. Scientific value assessment is classified as medium, the educational value assessment is classified as high, tourism value assessment is classified as medium, and the assessment of degradation risk value is classified as low.

Geologi Daerah Buyat Dan Sekitarnya, Kecamatan Kotabunan, Kabupaten Bolaang Mongondow Timur, Provinsi Sulawesi Utara Deden, Mokoagow Deden; Kasim, Muhammad; Hutagalung, Ronal; Akase, Noviar
Journal of Applied Geoscience and Engineering Vol 2, No 2 : Desember 2023
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jage.v2i2.24181

This research focuses on the eastern part of the northern arm of Sulawesi to understand the geological conditions, including geomorphology, lithology, stratigraphy, and geological structure. The goal is to determine the geological history and map the geological conditions to identify potential mineral resources. The research methods include a qualitative approach through field observations such as morphology, outcrop descriptions, lithology, geological structure measurements, stratigraphic relationships, as well as an inventory of natural resources and geological disaster risks. The quantitative approach involves calculations and analyses, including geomorphological analysis, petrography, paleontology, geological structure, stratigraphy, and the reconstruction of geological history. The research results identify four geomorphological units (karst, denudational, volcanic, alluvial) and six geological units at the research site. Andesite and volcanic breccia are the oldest units dating back to the Miocene. At the end of the Miocene, uplift and subsidence formed intrusive hills of diorite and limestone. Volcanic activity ceased in the Miocene. In the Pliocene, sandstone formed due to river transport. The rock formation process continues to the present, with alluvial deposit units resulting from the breakdown of rocks around the lake. Geological structure analysis reveals fault lines with the main stress direction from northwest to southeast. Relative fault data indicates fault inclination values suggesting the main stress direction is northwest-southeast. The geological history in the research area began in the Miocene with magmatism and tectonic activities, forming andesite and volcanic breccia units. This history extends to the formation of alluvial deposit units in the present. The research provides in-depth insights into the geological history and potential mineral resources in the region, serving as a foundation for further research.

Aplikasi Sistem Informasi Geografis Dalam Pemetaan Zonasi Rawan Banjir Kecamatan Monano Kabupaten Gorontalo Utara Agustaman, Rukmini; Kasim, Muhammad; Hutagalung, Ronal
Journal of Applied Geoscience and Engineering Vol 1, No 2 : December 2022
Publisher : Universitas Negeri Gorontalo

Monano Subdistrict is one of the sub-districts located in Gorontalo UtaraRegency, Gorontalo Province, which does not have a flood hazard map. Thisstudy aims to determine the geological conditions and create a flood hazardmap. This study collected field data, such as lithological data, plotting dataon flood coordinates of each village, as well as validation data of the floodhazard level. The spatial analysis used in this research scores on flood-proneparameters, such as slope, rainfall, and land use that are overlayed alongwith lithological data. As a result, four geomorphological units are obtained:volcanic hills, denudational hilss, and fluvial and marine plains. From thegeological aspect, four units of lithology constituents are produced, such asandesite units, agglomerate units, sandstone units, and alluvial deposit units.The data also exposes that: slopes range from 0-45o flat to very steep, landuse is covered by settlements, rice fields, shrubs, and forests, as well asrainfall which refers to a very high intensity of rainfall, which is 2771 mmper year. The data obtained produces a flood hazard map divided into threeclasses: low, medium, and high.

GEOLOGI DAN ANALISIS JENIS BATUAN ASAL PADA PEMBENTUKAN ENDAPAN NIKEL LATERIT DI KECAMATAN BUNTA, KABUPATEN BANGGAI Yuriadi, Bilal Aditya; Arifin, Yayu Indriati; Hutagalung, Ronal
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.v7i2.66100

This research is motivated by the presence of nickel laterite deposit potential originating from various types of lithology in the Bunta sub-district, Banggai Regency, which needs to be followed up to facilitate exploration of nickel laterite. The research area is located at coordinates 122°15'8" - 122°15'18" South Latitude and 0°50'36" - 0°51'18" East Longitude, covering an area of approximately ±441 hectares. The purpose of this study is to understand the geology of the research area and the types of source rocks that have formed nickel laterite deposits in the area. The data used in this research includes geomorphological data, structural data, lithological data, and rock samples. The collected data will produce information on rock types and interpretations of the geological history of the research area. Based on the analysis, the geomorphology of the research area consists of three units: structural hills, denudational hills, and interhill plains. The rock types in the research area include lherzolitic serpentinized rocks and serpentinites, which are part of the ultramafic complex. The observed and developed structure in this area is tensile fractures with a dominant direction of Northwest - Southeast. The results show that this area could be exposed due to oceanic crust subduction, which has uplifted ultramafic rocks to the surface, leading to physical and chemical weathering and the formation of nickel laterite deposits.

Co-Authors Agustaman, Rukmini Ahmad Zainuri Ahmad, Artina Ahmad, Fadhil Abdillah Aris, Ayub Pratama Atima, Karina Febriani K. Dachi, Mirdayanti Damogalad, Yustina Deden, Mokoagow Deden Dewi Rahmawaty Isa Ente, Amargio Saputro Hemeto, Fasya Ramadhan 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 Sri Maryati Suaib, Angki Sugianti, Komang Sumarjis, Suly Ayu Sunarty Suly Eraku Suwandi, Joga Bagaswicaksono Tangkudung, Latifa umar, Risky Usman, Fatma T. Yani, Lisra Yayu Indriati Arifin Yenayo, Hafipa Yuriadi, Bilal Aditya

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