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All Journal Sainstek Journal of Geoscience, Engineering, Environment, and Technology Jurnal Penelitian Pendidikan IPA (JPPIPA) UNM Geographic Journal Jurnal GEOSAPTA Jambura Geoscience Review MONSU'ANI TANO Jurnal Pengabdian Masyarakat Jurnal Abdi Insani Aksara: Jurnal Ilmu Pendidikan Nonformal Jambura Geo Education Journal Jurnal Sibermas (Sinergi Pemberdayaan Masyarakat) Jurnal Inovasi Pengabdian Masyarakat Pendidikan Geosfera: Jurnal Penelitian Geografi JAGE Jurnal Riset dan Pengabdian Interdisipliner Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir
Yayu Indriati Arifin
Universitas Negeri Gorontalo
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology 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 Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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Journal : UNM Geographic Journal

 1 
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.
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

Abstract

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.
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 GEOMORFOLOGI DAERAH TENILO DAN SEKITARNYA, KECAMATAN TILAMUTA, KABUPATEN BOALEMO, PROVINSI GORONTALO Yenayo, Hafipa; 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.v7i2.66275

Abstract

The research area is located in the village of Tenilo and its surroundings, which exhibit interesting land characteristics and features, making it an attractive site for study. This research aims to analyze and map the geomorphological conditions in order to obtain information related to various geomorphological aspects. The method used is the analysis of geomorphological aspects. The results of this study indicate that the geomorphological units in the area include volcanic hills, denudational hills, and marine plains. The geomorphological aspects of this area are categorized as follows: morphography, consisting of hill and plain units; morphometry, with elevation points ranging from 0 to 350 meters above sea level, and slope gradients from flat to steep; morphogenesis, which includes active morphostructures such as faults and joints, and passive morphostructures such as andesite, volcanic breccia, and alluvial deposits; morphodynamics, characterized by river flow patterns including dendritic and sub-parallel patterns, with river stages ranging from mature to youthful. According to the regional geological map of the Tilamuta sheet, the morphochronology of the research area dates back to the Eocene to Holocene epochs, and the morpho-arrangement of the area is dominated by high erosion processes.
Co-Authors Abd Kadir Mubarak A Amin Abdi Gunawan Djafar Abduh, Jihad Ramadhan Ahmad Zainuri Ahmad Zainuri Alit Anastasya Hemu Anugrah, Krishna Aris, Ayub Pratama Budiyansyah Harun Destia Ningrum, Sindi wahyu Djamal Adi Nugroho Djibran, Fahira Ramadhani Fadhil Abdillah Ahmad Femy Mahmud Sahami Gunawan, Aryl Afrizhar Hamid, Rinto Saputra Hasan S. Panigoro Hemeto, Fasya Ramadhan Hemu, Alit Anastasya Hidayansya, Taufik Hutagalung, Ronal I Ketut Suada Intan Noviantari Manyoe Irvin Novita Arifin Iswanto, David Kasim Mahmud Kasim, Della Nawarita Putri Kasim, Muhamad Katili, Gita Triyana Risti Latingara, Fahrul Mamonto, Ahmad Firli Mamonto, Fajri Kurniawan Mamonto, Sri Maghfira Mardain, Tober Marina, Siti Masruroh MASRUROH Meilinda Lestari Modjo Muh. Kasim Naafi Syahna Firdhaus Biya Nana Juhriana Yusuf Ninasafitri Ninasafitri, Ninasafitri Nonsi, Mutiara Noviar Akase Paendre, Asdini Pakaya, Ariyanto Paladan, Rayhand Batara Paladan, Reynhard Batara Permana, Aang Panji Ponto, Nadia Fransisca Prabowo, FX Harkins Hendro Purnomo Raharjo, Purnomo Rauf, Jayanti Rompo, Ahmad Iryanto Ronal Hutagalung Rosadi, Dhani Rhamdani Ruhimat, Nursultan Akbar Rusdi, Infithar Hi Rusiyah Rusiyah Sahido, Nurmasita Dewi Sangkota, Vivi Dia Afrianti Simbala, Susilo Bintang Slamet . Sri Manovita Pateda Suma, Muhamad Danial Sumarjis, Suly Ayu Tudjaena, Asti Ananda umar, Risky Usman, Fatma T. Usman, Miranda Melia Waode Eti Hardiyanti Windayani Ika Yunitasari Yenayo, Hafipa Yuriadi, Bilal Aditya Zeffitni Zeffitni