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Geosfera: Jurnal Penelitian Geografi
Published by Universitas Negeri Gorontalo
ISSN : 29625424     EISSN : 29625416     DOI : https://doi.org/10.34312/geojpg.v1i1
Core Subject : Science, Education, Social,
Earth & Planetary Sciences Education Environmental Science Social Sciences
Geosfera : Jurnal Penelitian Geografi (GeoJPG, P-ISSN: 2962-5424, E-ISSN: 2962-5416) is a peer-reviewed journal published by Department of Earth Science and Technology, Universitas Negeri Gorontalo. GeoJPG provides open access to the principle that research published in this journal is freely available to the public to support the exchange of knowledge globally. GeoJPG published two-issue articles per year namely June and December. GeoJPG provides a place for academics, researchers, and practitioners to publish scientific articles. Each text sent to GeoJPG editor is reviewed by peer review. Starting from Vol. 1 No. 1 (June 2022), all manuscripts sent to the GeoJPG editor are accepted in Bahasa Indonesia. The scope of the articles listed in this journal relates to various topics, including (1) Geography Education, (2) Physical Geography, (3) Human Geography, (4) Geographic Information System (GIS), (5) Remote Sensing, (6) Environmental Science, (7) Disaster Risk Reduction and other relevant geosciences. This journal is available in print and online and highly respects the ethics of publication and avoids all types of plagiarism.
Arjuna Subject : Ilmu Sosial - Geografi, Perencanaan dan Pengembangan
Articles 136 Documents
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Pemetaan Kerawanan Longsor Berbasis Sistem Informasi Geografis pada Daerah Kikim Selatan, Kabupaten Lahat, Sumatera Selatan Wulandari Wulandari; Budhi Setiawan; Dede Nurohim
Geosfera: Jurnal Penelitian Geografi Vol 5, No 1 (2026): Geosfera : Jurnal Penelitian Geografi
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/geojpg.v5i1.38967

Abstract

The South Kikim Area, South Sumatra, is characterized by hilly terrain, weathered sedimentary lithology, steep slopes, and geological structures that may increase landslide susceptibility. These conditions highlight the need for spatial information on landslide-prone areas to support disaster mitigation and regional planning. This study aims to map landslide susceptibility and identify the controlling factors in the South Kikim Area. The analysis employed a Geographic Information System (GIS)-based weighted scoring method by integrating geological conditions, slope gradient, soil type, and land cover parameters. Each parameter was assigned a score and weight according to its contribution to slope instability and then analyzed through spatial overlay techniques to produce a landslide susceptibility map. The results indicate that the study area of 8,057.58 ha is classified into three susceptibility levels: low susceptibility covering 48.40 ha (0.60%), moderate susceptibility covering 7,064.09 ha (87.67%), and high susceptibility covering 945.10 ha (11.73%). High-susceptibility zones are concentrated in the southern part of the study area, particularly in Pseksu District, and are associated with calcareous shale, weathered claystone, and steep to very steep slopes. Lithology and slope gradient were identified as the dominant factors controlling landslide susceptibility distribution. The resulting susceptibility map can serve as a reference for disaster mitigation and spatial planning in the study area.
Pendekatan Humanistik dalam Membangun Motivasi Belajar Siswa pada Pembelajaran Geografi di Madrasah Aliyah DDI Paria Mutmainnah Mutmainnah
Geosfera: Jurnal Penelitian Geografi Vol 5, No 1 (2026): Geosfera : Jurnal Penelitian Geografi
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/geojpg.v5i1.38526

Abstract

The humanistic approach is important in geography learning because it places students at the center of the learning process by considering their potential, emotions, and learning needs. However, geography learning in schools still tends to be conventional, resulting in low student engagement and learning motivation. This study aims to analyze the implementation of the humanistic approach and its influence on students’ learning motivation in geography learning at Madrasah Aliyah DDI Paria. This study employed a descriptive qualitative approach. Data were collected through observation, in-depth interviews, and documentation, then analyzed using data reduction, data display, and conclusion drawing techniques. The results indicate that the humanistic approach was implemented through student-centered learning, open dialogue, appreciation of students’ opinions, and the use of interactive and contextual learning methods. This implementation increased students’ learning motivation, active participation, self-confidence, and interest in geography learning. In addition, the humanistic approach created a more empathetic, communicative, and comfortable learning environment for students. In conclusion, the humanistic approach is effective in improving students’ learning motivation and supporting the creation of empathetic and interactive geography learning.
Analisis Paleontologi dan Petrografi sebagai Interpretasi Limgkungan Pengendapan Anggota Sukaraja Formasi Bentang Charyssya Safira Puteri Yunizar; Edy Sutriyono; Ugi Kurnia Gusti
Geosfera: Jurnal Penelitian Geografi Vol 5, No 1 (2026): Geosfera : Jurnal Penelitian Geografi
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/geojpg.v4i2.38038

Abstract

Depositional environment is an important aspect of sedimentary geology because it records paleoenvironmental conditions and sedimentation processes during rock formation. However, integrated paleontological and petrographic studies on the Sukaraja Member of the Bentang Formation remain limited. This study aims to interpret the depositional environment of the Sukaraja Member based on paleontological and petrographic analyses. The research was conducted through field observations, rock sampling, micropaleontological analysis, and petrographic examination using thin sections under a polarizing microscope. The results indicate that the Sukaraja Member is composed of sandy limestone characterized by packstone texture, micrite matrix, and parallel bedding structures, reflecting low to moderate depositional energy. Micropaleontological analysis indicates a Late Miocene age (N16 zone), while benthic foraminiferal assemblages suggest a marginal to middle neritic environment with estimated depths ranging from 118 to 182 m. The integration of petrographic characteristics, sedimentary structures, and fossil assemblages indicates that the Sukaraja Member of the Bentang Formation was deposited in a back reef carbonate environment characterized by relatively calm water conditions and limited clastic sediment supply.
Analisis Geomorfologi Daerah Tulakan Dan Sekitarnya Kabupaten Pacitan Fadil Fatur Rahman; Harnani Harnani
Geosfera: Jurnal Penelitian Geografi Vol 5, No 1 (2026): Geosfera : Jurnal Penelitian Geografi
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/geojpg.v5i1.39199

Abstract

The Tulakan area, Pacitan Regency, exhibits a complex landscape formed by the interaction of endogenous processes, including tectonic activity and andesitic magma intrusion, with exogenous processes such as weathering, erosion, sedimentation, and karstification. This study aims to identify geomorphological units, analyze their morphology, morphometry, and morphogenesis, and evaluate the influence of lithology and geological structures on landscape development. The study employed an integrated approach combining Digital Elevation Model (DEM) interpretation, morphometric and drainage pattern analyses, geomorphological mapping, lithological and structural geological analyses, and field verification. The results identified five major geomorphological units: Fault Block Ridges (approximately 30%), Moderately Eroded Denudational Hills, Intrusive Hills (approximately 5%), Karst Hills, and fluvial landforms represented by meandering channels, point bars, and floodplains (approximately 10–12%). Lithology primarily controls the development of karst and fluvial landforms, whereas geological structures govern the orientation and distribution of Fault Block Ridges and Intrusive Hills. These findings indicate that the geomorphological evolution of the Tulakan landscape is controlled by the interaction between tectonic and geomorphic processes, providing a scientific basis for geological hazard mitigation, environmental management, and sustainable regional planning.
Pemetaan Geologi Desa Kopi, Kecamatan Bulango Utara, Kabupaten Bone Bolango, Gorontalo Mirdayanti Dachi; Noviar Akase; Sri Maryati
Geosfera: Jurnal Penelitian Geografi Vol 5, No 1 (2026): Geosfera : Jurnal Penelitian Geografi
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/geojpg.v5i1.39447

Abstract

Detailed geological information regarding the geomorphology, lithology, and geological structures of Kopi Village, North Bulango District, Bone Bolango Regency, remains limited, despite its importance for geological research, natural resource management, and regional development planning. This study aims to characterize the geomorphological, lithological, and structural features of the area through detailed geological mapping at a scale of 1:10,000. The research employed literature review, field geological surveys, geomorphological observations, outcrop investigations, structural measurements, rock sampling, and megascopic and petrographic analyses. The results reveal four lithological units, namely the Andesite Unit, Diorite Unit, Granodiorite Unit, and Alluvial Unit. Geomorphological analysis identified three landform units consisting of Volcanic Hills, Intrusive Hills, and Alluvial Plains. The geological structures are dominated by tension joints with principal orientations of northwest–southeast (NW–SE) and northeast–southwest (NE–SW). Stratigraphic relationships and petrographic characteristics indicate that andesite represents the oldest unit, subsequently intruded by diorite and granodiorite during the Middle Miocene, whereas alluvial deposits constitute the youngest unit formed by surface sedimentation processes. The geological evolution of the study area is interpreted to have been controlled by magmatic and tectonic activities that influenced the development of lithology, geomorphology, and geological structures. The findings provide detailed geological baseline information that can support future geological investigations and geology-based regional management.
Studi Tipe Endapan Nikel Laterit Pada Kecamatan Bahodopi, Kabupaten Morowali, Sulawesi Tengah Anisa Sawitri B. Bania; Aang Panji Permana; Ronal Hutagalung
Geosfera: Jurnal Penelitian Geografi Vol 5, No 1 (2026): Geosfera : Jurnal Penelitian Geografi
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/geojpg.v5i1.39070

Abstract

Nickel laterite deposits represent the primary source of nickel formed through intensive weathering of ultramafic rocks in tropical regions. Deposit characterization is essential for understanding nickel enrichment mechanisms and supporting more effective exploration strategies. This study aims to characterize and classify the nickel laterite deposit type within the IUP area of PT Bumi Kalaena Persada, Bahodopi District, Morowali Regency, Central Sulawesi, Indonesia. The research employed geomorphological analysis, surface geological observations, drilling data interpretation, geochemical analysis using X-Ray Fluorescence (XRF), and petrographic examination. Deposit classification was based on Ni grade distribution, mineralogical characteristics, groundwater table position, and nickel accumulation mechanisms. The results indicate that the laterite profile developed over serpentinized lherzolite belonging to the Ultramafic Complex. Nickel enrichment is predominantly concentrated within the saprolite zone, with grades ranging from 1.24% to 2.38%, accompanied by increasing MgO and SiO₂ contents and decreasing Fe concentrations. Mineralogical analysis identified hydrous Mg–Ni silicate minerals, including garnierite, talc, and serpentine, as the principal nickel-bearing phases. The groundwater table is interpreted to occur within the limonite–saprolite transition zone, where it plays a significant role in controlling nickel mobility, precipitation, and accumulation. The integration of geochemical, mineralogical, hydrogeological, and nickel accumulation characteristics indicates that the deposit is classified as a hydrous silicate type, with the saprolite zone representing the principal horizon of nickel enrichment.

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