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All Journal Natural Science: Journal of Science and Technology JGE (Jurnal Geofisika Eksplorasi) Jurnal Fisika FLUX Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) Jurnal Geomine Jurnal GEOSAPTA Jurnal Pengabdian Magister Pendidikan IPA Adimas : Jurnal Pengabdian Kepada Masyarakat Jambura Geoscience Review To Maega: Jurnal Pengabdian Masyarakat Bubungan Tinggi: Jurnal Pengabdian Masyarakat Lamahu: Jurnal Pengabdian Masyarakat Terintegrasi INFOTIKA: Jurnal Pendidikan Informatika Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) Tadulako Science and Technology Journal Jurnal Riset dan Pengabdian Interdisipliner
Asrafil Asrafil
Jurusan Teknik Geologi, Fakultas Teknik, Universitas Tadulako, Palu, Indonesia
Agriculture, Biological Sciences & Forestry Humanities Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Physics Social Sciences Other

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Determination of Slope Safety Factor Based on Hoek & Brown Collapse Criteria on Ampera-Surumana Road Section Nugraha, Agung; Uno, Irianto; Asrafil, Asrafil
Tadulako Science and Technology Journal Vol. 5 No. 1 (2024): Tadulako Science and Technology Journal
Publisher : LPPM Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/sciencetech.v5i1.17178

Abstract

Introduction: One way to determine whether a slope is stable or not is by using the safety factor criterion. The method to determine the safety factor using the limit equilibrium method. Administratively the research area is located in the village of Salubomba, Central Banawa District, Donggala Regency, Central Sulawesi Province. The results of the study are also expected to be used as one of the basis for planning the design of stable slopes in the area Method: The methods used in this research were qualitative and quantitative. The process in this research was carried out with each method. The process of collecting secondary data and primary data is carried out by Geology and Geological Engineering methods both qualitatively and quantitatively. Results and Discussion: Observations in this study were made in the field in the form of observations of bridging on road slopes. The bruises in the study area are grouped on the basis of their shape and genetics. Through the results of observations and measurements on rock slopes at the research site. Based on data processing on the GEOSTUDIO 2018 R2 software application. Then, the value of the slope safety factor at observation station 1 is 2.316. Conclusion: Based on testing and analysis of the Hoek & Brown collapse criteria method, it can be concluded that the value of the slope safety factor at observation stations 1, 2, 3, 4, and 5 is 2.316; 2.029; 1.765; 1.658; 2.622 respectively. At station 4 the level of vulnerability is medium (Landslides can occur), at station 3 is at a low level of vulnerability (Landslides rarely occur), while at stations 1,2 and 5 are at a very low level of vulnerability (Landslides very rarely occur).
Distribution of Ground Temperature in the Geothermal Manifestation Area of Lompio, Donggala Regency, Central Sulawesi Province Sitti Rugayya; Badaruddin Badaruddin; Asrafil Asrafil
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 20, No 3 (2023): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v20i3.12173

Abstract

The distribution of non-volcanic geothermal energy is widely found on the island of Sulawesi, one of which is in Lompio Village, Sirenja District, Donggala Regency, Central Sulawesi Province. It is important to study the geothermal potential in the village in order to learn how the geothermal system works. This study aims to identify the distribution pattern of temperature distribution in shallow soil depths as a manifestation of the geothermal system below the surface and its relation to geothermal manifestations that appear on the surface. This research was carried out through a series of field observations and direct soil temperature measurements in the study area using a thermometer. The results show that the distribution pattern of land temperature distribution in the high-temperature zone is associated with the presence of geothermal manifestation points on the surface (hot springs). The association of temperature and manifestation is possible because the presence of hot springs is an indication of a weak zone for the release of hydrothermal fluid from the geothermal system, which is correlated with the geological structure in the research area.
STUDY OF ORE MINERALIZATION POTENTIAL IN METAMORPHIC ROCKS IN KAWATUNA AREA, PALU CITY, CENTRAL OF SULAWESI Asrafil, Asrafil; Mukaddas, Abdul; Puspita, Riska; Assidiqi, Muhammad; Rugayya, Sitti
JGE (Jurnal Geofisika Eksplorasi) Vol. 11 No. 1 (2025)
Publisher : Engineering Faculty Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jge.v11i1.484

Abstract

The Kawatuna area has a complex geological structure and lithological condition of metamorphic rock, which is estimated to be a weak zone for hydrothermal solutions to rise and then accumulate as mineralization of veins in the metamorphic rock. Based on this, it makes this area interesting to research. This research aims to identify metal ore minerals and the mineralization characteristics of ores in the research area. The method used is a geological survey of the surface and laboratory analysis through ore microscopic as well as mineral chemistry tests. Based on the results of the research study, it was found that in metamorphic rocks in the Kawatuna area, sulfide metal ore minerals were found including argentite (Ag2S), pyrite (FeS2), chalcopyrite (CuFeS2), sphalerite (ZnS), galena (PbS), and covelite minerals (CuS), Native elements ore minerals include gold (Au), silver (Ag), electrum (Au, Ag), and Oxide ore minerals in the form of hematite (Fe2O3). The mineralization formed is controlled by structures that produce fractures in the rock, which then produces mineralization as the veins of metamorphic rocks. The ore mineralization in the research area occurs through a hypogene process (the formation of a formation zone from primary ore minerals) and a supergene process stage (the formation of a formation or enrichment zone from secondary ore minerals).
Edukasi Mitigasi Bencana Banjir Bandang Di Desa Pulu Kecamatan Dolo Selatan Kabupaten Sigi Mulyati, Sri; Abdullah, Abdullah; Rusli, Rusli; Musa, Dahlan Th.; Kurniawan, Mauludin; Kasim, Sandra; Asrafil, Asrafil
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Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jrpi.v2i3.33125

Abstract

Disaster education activities on flash floods were carried out in Pulu Village, Dolo District, Sigi Regency as an effort to increase community knowledge and preparedness against the threat of flash floods. The method used was a participatory approach involving the direct participation of the Pulu Village community, the Village Government, community leaders, and Disaster Response Youth. The stages of this community service activity included location observation, preparation, and implementation. The implementation stage was conducted through a socialization or outreach scheme in the form of a lecture. The purpose of the education was to introduce signs of flash flood hazards, risk knowledge, and emergency response planning. The educational activity received positive responses from the community, who actively engaged during the presentation, as well as appreciation from the village government. The presentation of materials accompanied by a simple simulation further enhanced the community’s understanding of self-rescue actions during a flash flood. The results of this activity indicate that interactive disaster mitigation education can effectively build community awareness and preparedness in facing flash flood threats.
Penerapan Media Microsoft Word Pada Era Digital Dalam Dasar-Dasar Pengolahan Teks di MTS Muhammadiyah Asrafil, Asrafil; Rahmawan, Ardi; Ramdhani, Lisda
Infomatika: Pendidikan Informatika Vol 4, No 2 (2025): Oktober 2025
Publisher : STKI Harapan Bima

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56842/infotika.v4i2.722

Abstract

The development of digital technology has brought significant changes in the field of education, particularly in the use of software such as Microsoft Word as a learning tool. This study aims to analyze students' understanding of basic and advanced features of Microsoft Word, identify obstacles faced in its academic use, and provide recommendations for effective mentoring strategies. A descriptive quantitative method was employed, using a Likert-scale questionnaire and semi-structured interviews involving 20 students from grades VII–IX and 2 teachers at MTS Muhammadiyah, Bima Regency. The results indicate a notable improvement in learning outcomes among students who actively used Microsoft Word compared to the control group, with the majority (70%) giving highly positive responses to its implementation. In addition to enhancing material comprehension and text processing skills, Microsoft Word has also proven effective in creating a more engaging and interactive learning environment. However, limitations in the use of advanced features were still observed due to insufficient guidance. Therefore, structured training for both teachers and students is essential to optimize the use of Microsoft Word in 21st-century digital learning
Edukasi Ilmu Kebumian Dan Potensi Kebencanaan Geologi Bagi Siswa SMA Negeri 1 Sarjo Janat, Nunik Rezkiarti; Fitriana, Tati; Asrafil, Asrafil; Mukaddas, Abdul; Nugroho Uno, Djamal Adi; Mulyati, Sri
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Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jrpi.v2i4.35324

Abstract

Considering the geological complexity of Sulawesi and the limited exposure of students to basic geoscience knowledge in formal education, SMA Negeri 1 Sarjo, located in West Sulawesi and bordering Central Sulawesi, recognized the need to conduct a knowledge-sharing activity on earth science, geological resources, and geological hazards. This program invited academic experts from the Faculty of Engineering, Universitas Tadulako, to deliver educational materials tailored for high school students. The main objective was to enhance students’ understanding of geoscience concepts, introduce the diversity of geological resources, and increase awareness of geological hazards, particularly those prevalent in Sulawesi. The activity involved grade XII students through presentations, discussions, and interactive question-and-answer sessions. Students and teachers responded positively, indicating increased interest and comprehension of the topics presented. The positive feedback and appreciation expressed by the school, especially through the Vice Principal for Curriculum and Student Affairs, served as an indicator of the program’s success.
Sosialisasi Mengenai Jalur Geotrek Tanjung Api Sebagai Salah Satu Situs Geowisata untuk Kelompok Sadar Wisata Desa Labuan Kabupaten Tojo Una-Una Janat, Nunik Rezkiarti; Botjing, Muslimin U.; Mu’min, Risqa P.; Fitriana, Tati; Asrafil, Asrafil; Puspita, Riska; Uno, Irianto
Lamahu: Jurnal Pengabdian Masyarakat Terintegrasi Vol 5, No 1: February 2026
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/ljpmt.v5i1.34549

Abstract

The socialization program on the Tanjung Api Geotrek Route was carried out to enhance the understanding, awareness, and capacity of the Tourism Awareness Group (Pokdarwis) of Labuan Village in managing geotourism potential based on local geological heritage. The Tanjung Api area in Tojo Una-Una Regency, Central Sulawesi, is known for its natural fire phenomenon caused by the release of flammable natural gas, giving the site unique scientific, educational, and tourism value. Using a participatory approach, the program included material presentations, interactive discussions, the introduction of geotrek route design, and field observations at several potential geosites. The results show that participants’ knowledge increased by 80–90% regarding geotourism concepts, geological resource conservation, and strategies for developing interpretive educational geotreks. Participants also demonstrated strong enthusiasm to engage in destination management and benefit from the economic opportunities offered by tourism activities. This program serves as an initial step in strengthening collaboration between the community, academia, and local government to support sustainable geotourism development. The socialization provides a foundation for achieving independent, well-directed, community-based management of the Tanjung Api geosite as part of broader geotourism development in Tojo Una-Una Regency.
Identification of Ore Mineral and Host Rocks in Balukang Area, Sojol District, Donggala Regency, Central Sulawesi Province Kacong, Nurhijah Awaludin; Asrafil, Asrafil; Puspita, Riska
Jambura Geoscience Review Vol 8, No 1 (2026): Jambura Geoscience Review (JGEOSREV)
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jgeosrev.v8i1.34381

Abstract

The Balukang area, Sojol District (Donggala Regency, Central Sulawesi), is characterized by dioritic intrusions and active artisanal mine workings that expose mineralized rocks. This study aims to identify the presence of ore minerals, determine their host rocks, and understand the relationship between geological conditions and ore mineral formation in the area. Sampling was carried out at several observation stations identified in the field. Limited exposure restricted the sampling process, so some samples were taken from man-made mining pits that were still accessible. From all the samples collected, four representative samples were selected for petrographic analysis and six representative samples for mineralographic analysis. Petrographic thin sections and polished sections were examined using transmitted- and reflected-light microscopy to characterize mineral assemblages and textures. The analysis results showed the presence of ore minerals such as silver, gold, pyrite, chalcopyrite, sphalerite, covellite, galena, and hematite, with observed textures including intergrowth, replacement, open space filling, and mutual boundary. These textural relationships indicate hydrothermal deposition and provide a basis for interpreting mineral paragenesis in the study area. The ore minerals are associated with quartz diorite and quartz porphyry diorite as host rocks, which are controlled by intrusion lithology and geological structures. Overall, the identified mineral assemblage and host-rock association offer an initial mineralogical baseline to guide exploration targeting along veins, fractures, and stockwork zones. This study is a preliminary study, so further research is needed through detailed geological mapping, geochemical analysis, and fluid inclusion studies.
Geochemical Characteristics of Basalt in the Northern Taopa Area, Parigi Moutong Regency, Central Sulawesi Magfira, Sri Wanda; Asrafil, Asrafil; Puspita, Riska
Jambura Geoscience Review Vol 8, No 1 (2026): Jambura Geoscience Review (JGEOSREV)
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jgeosrev.v8i1.34364

Abstract

This study analyzes the geochemical characteristics of basaltic rocks in the Northern Taopa (Taopa Utara) area, Parigi Moutong Regency, Central Sulawesi, to constrain magma affinity, magmatic series, and tectonomagmatic setting. Although Central Sulawesi records complex arc–oceanic interaction, the major-element geochemistry of basalts from Northern Taopa has remained poorly documented. Petrographic observations and X-ray fluorescence (XRF) major-oxide analyses were conducted on four representative samples (ST10, ST19, ST24, and ST36). Petrographic analysis shows that all samples have a hypocrystalline–porphyritic texture with plagioclase, clinopyroxene, olivine, and opaque minerals set in a microlitic groundmass. Major-oxide compositions are characterized by SiO2 48.85–50.65 wt% and total Fe2O3 12.89–13.11 wt%, consistent with mafic basalt. On the total alkali–silica diagram the samples plot in the basalt field and display low total alkalis (Na2O+K2O 1.11–2.11 wt%) and very low K2O (0.039–0.051 wt%), indicating a low-K subalkaline affinity. AFM relations show relative Fe enrichment and place the samples within the tholeiitic series. Tectonic discrimination using TiO2–P2O5–MnO (TiO2 0.98–1.06 wt%; P2O5 0.405–0.427 wt%; MnO 0.208–0.276 wt%) suggests an ocean-island tholeiite (OIT) signature. The low-K tholeiitic, OIT-like character implies an intraplate oceanic mantle source contribution to basalt generation and provides quantitative constraints for refining regional tectonic reconstructions of Central Sulawesi during emplacement of the Taopa volcanic unit.
Co-Authors A. Nurul Novia Rahmaningrum Abdul Mukaddas Abdullah Abdullah Agung Nugraha Arifudin Idrus Assidiqi, Muhammad Badaruddin Badaruddin Botjing, Muslimin U Botjing, Muslimin U. Djoko Wintolo Djoko Wintolo, Djoko Eka Yuliastri Fitriana, Tati I Gede Tunas Irianto Uno Jamil, Wisnu Prawiro Raharjo Janat, Nunik Rezkiarti Kacong, Nurhijah Awaludin Kurniawan, Mauludin Lestari, Sari Puji Listianti, Ajeng Magfira, Sri Wanda Moh Dahlan Th Musa Muslimin U Botjing Muslimin U Botjing Muslimin Umar Botjing Muslimin Usman Botjing Mu’min, Risqa P. Nugroho Uno, Djamal Adi Nurhikmah Supardi Parwati, Ni Made Suwitri Puspita, Riska R. Rusli Rahmawan, Ardi Ramdhani, Lisda Sandra Kasim, Sandra Sitti Rugayya Sitti Rugayya Sri Mulyati Sri Mulyati Teguh Hilmansyah