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Journal : JAGE

Identifikasi Kualitas Batugamping Berdasarkan Analisis Geokimia dan Petrografi Daerah Pilolodaa Provinsi Gorontalo Paputungan, Ulfanna; Permana, Aang Panji; Akase, Noviar
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.v4i1.33607

Abstract

Gorontalo is one of the provinces with significant limestone potential, particularly in the industrial sector. This study aims to identify the quality of limestone found in the Pilolodaa area and its surroundings. The methods used in this research include petrography to determine the limestone facies and XRF analysis to identify the mineral composition of the rocks. The study area consists of lithologies such as floatstone limestone facies, carbonate sandstone, and alluvial units. The floatstone limestone has a CaO composition greater than 50% and MgO less than 2%, making it highly potential for industrial applications.
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.
Pengaruh Lingkungan Pengendapan terhadap Sebaran dan Kualitas Lapisan Batubara di Desa Kalasari, Papua Barat Daya Sinaga, Yosiyan Daniel; Permana, Aang Panji; Kasim, Muh
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.v4i2.37129

Abstract

This study was conducted in Kalasari Village, Salawati District, Sorong Regency, Southwest Papua, within the Contract of Work area of PT Megapura Prima Industri. The research integrated field geological observations, detailed lithological and outcrop descriptions, drill core logging and correlation, and laboratory proximate analysis to characterize coal occurrence and quality. Stratigraphic analysis indicates that the study area is composed of two principal lithological units: the Sele Claystone Unit, deposited in backswamp to swamp environments, and the Sele Sandstone Unit, representing floodplain facies. Borehole correlation reveals coal seam thicknesses ranging from 0.3 to 1.82 m, with a general westward thickening trend, reflecting microtopographic variation and peat stability during deposition. The roof and floor of the coal seams are dominantly claystone or clayey sandstone, indicating overbank flood sedimentation that facilitated peat preservation. Proximate analysis shows that the coal is low rank, characterized by calorific values of 3220–3619 kcal/kg (adb), low ash content (1.7–3.8%), very low sulfur content (0.2%), and high total moisture (32–37%). These characteristics are typical of freshwater swamp–backswamp facies within an upper delta plain depositional environment with limited clastic input. The relatively thin overburden further constrained coalification, resulting in low calorific values. Overall, the results demonstrate that coal distribution, seam thickness, and coal quality in the study area are strongly controlled by upper delta plain depositional dynamics, particularly swamp and backswamp facies that governed peat accumulation and preservation.
Kajian Geologi Teknik dan Potensi Longsor pada Segmen IG1 dan IG2 Akses Tambang di Kabupaten Pohuwato, Gorontalo Ginting, Immanuel; Permana, Aang Panji; Zainuri, Ahmad
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.v4i2.37128

Abstract

This study examines the geological conditions and slope stability of segments IG1 and IG2 in the Magazine access area of the Pani Gold Project, Pohuwato Regency. The research methods include geological mapping, scanline analysis, kinematic evaluation using stereonet, and Rock Mass Rating (RMR) and Slope Mass Rating (SMR) assessments. Segment IG1 consists of volcanic breccia with an RMR value of 57 (Class III, Fair Rock) and an SMR value of 45–50 (Poor), indicating wedge failure potential. Segment IG2 is dominated by dacite with an RMR of 60 (Class III, Fair Rock) and an SMR of 55–60 (Fair–Good), showing a tendency toward toppling failure. The results suggest that IG2 is relatively more stable than IG1, although localized failures may occur. Technical recommendations include slope reinforcement with rock bolts, shotcrete, and drainage systems to minimize slope failure risks.
Geologi dan Rezim Tektonik terhadap Evolusi Lengan Utara Sulawesi: Studi Kasus Sungai Alo, Gorontalo Biya, Naafi' Syahna Firdhaus; Permana, Aang Panji; Kasim, Muhammad
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.v4i2.31881

Abstract

This study investigates the tectonic control on the development of geological structures along the Alo River in Tibawa District, Gorontalo Regency, Gorontalo Province. The research was conducted through geological mapping, structural analysis, and petrographic examination of basalt rock samples. The area is characterized by two major geomorphological units: structural hills and floodplains. Stratigraphically, it comprises basalt units—correlated with the Bilungala Volcanic Formation—and alluvial deposits. Structural analysis reveals two orders of joint structures with dominant orientations of NW–SE and N–S, interpreted as the result of multiple tectonic episodes. Petrographic analysis shows porphyritic and intergranular textures with plagioclase, pyroxene, and minor olivine as dominant minerals. Tectonic stress analysis using Win_Tensor software indicates transtensional regimes characterized by normal faulting and strike-slip faults with extensional components. These structures are associated with tectonic evolution in the North Arm of Sulawesi, transitioning from compressional to oblique-extensional settings during the Late Miocene–Pliocene due to changes in subduction geometry and microblock interactions. This ongoing tectonic activity has implications for regional geological mapping and natural resource management in Gorontalo.
Co-Authors Ahmad Zainuri Ahmad, Artina Ahmad, Fadhil Abdillah Aisyah Alya H Panai Antoni, Isan Aris, Ayub Pratama Asmoro Widagdo Asmoro, Yoki Dwi Atima, Karina Febriani K. Biya, Naafi' Syahna Firdhaus Damogalad, Yustina Dewi Rahmawaty Isa Diwa Ahmad Luly Djamal Adi Nugroho Uno Djamal Adi Nugroho Uno Evi Hulukati Fajri Kurniawan Mamonto Fandji Marfian Fikri Boften Ghaneswara, Oka Arin Ginting, Immanuel Hendra Hendra Hidayansya, Taufik Hisbullah Hisbullah Hisyam, Febrina Hutagalung, Ronal I Nengah Sandi Intan Noviantari Manyoe Ismail, Zenza Harnold Ivan Taslim Karim, Susilawati Kiwo, Anince Kodung, Mohamad Ashar Kodung, Mohamad Ashar Fitrayadi Ramdan S. Lahay, Muamart Gimnastiar Lahmuda, Zulsiasana Luly, Diwa Ahmad M Imran, A Mahmud, Fitria Mahmud, Vani Akbarani Y. Mane, Moh Sajandri Masay, Muhammad Syawal Ardiansyah Masruroh Masruroh Masruroh Mbuinga, Ansyar Moch Rio Pambudi Moehammad Jasim Agi Saputra Mohamad Karmin Baruadi Mooduto, Tirsya Aygina Jaenet Muh Kasim Muh Nasrullah Al Fauzan Muh. Kasim Muhammad Kasim Muhammad Kasim Muhammad Kasim, Muhammad Kasim Muhtar Muhtar Natua, Moh Rizky A R Ninasafitri, Ninasafitri Ninsafitri Novariani Payuyu Noviar Akase Nugrahi, Putri Inayah Nurdin Mohamad Pambudi, Moch Rio Panai, Aisyah Alya Humayrah Panai, Irdiansyah Paputungan, Qurota Ayuni Paputungan, Ulfanna Polontalo, Moh. Afandi Putranto, Faried Ardian Ravit Tahuku Rini Rahmatia S Robot, Ladya Cheryl Ronal Hutagalung Ruru, Susanti Safari, Indriani Saida, Muhammad Syaifullah Sari, Ni Luh Ananda Pusvita Simbala, Susilo Bintang Sinaga, Yosiyan Daniel Sosang, Agustinus Sri Widodo Suaib, Angki Sunarty Suly Eraku Suratinoyo, Mohamad Sunandyo Sutarto, Tiara Anggraeni Puspaningrum Tahaku, Ravit Triyani, Mayang Diva Tumelap, Irka Priwanda Usman, Fatma T. Wangi, Akrein Vender Yayu Indriati Arifin