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Journal Geological Processes, Risks, and Integrated Spatial Modeling
Published by Universitas Prisma
ISSN : -     EISSN : 30464935     DOI : -
Core Subject : Science, Social, Engineering,
Energy Engineering Environmental Science
"Journal Geological Processes, Risks, and Integrated Spatial Modeling" (Jurnal Proses Geologi, Risiko, dan Pemodelan Spasial Terintegrasi) E-ISSN 3046-4935. Topik ini melibatkan pemahaman tentang berbagai proses geologi, risiko yang terkait dengan proses geologi, serta penerapan teknik pemodelan spasial untuk memahami dan mengelola risiko sebagai upaya pembangunan berkelanjutan. Proses geologi mencakup berbagai fenomena dan peristiwa yang terjadi di dalam maupun permukaan Bumi, seperti pergerakan lempeng tektonik, erosi, sedimentasi, aktivitas vulkanik, dan sebagainya. Proses geologi dapat menjadi pertimbangan terhadap risiko geologis dan dapat menjadi rujukan data untuk mengetahui pengaruh geologi terhadap lingkungan, dan infrastruktur. Seperti gempa bumi, letusan gunung api, longsor, erosi pantai, banjir, dan pencemaran tanah dan air oleh bahan kimia. Perkembangan ilmu dan data mengenai berbagai jenis proses geologis, faktor-faktor yang mempengaruhinya, serta konsekuensi sosial, ekonomi, dan lingkungan yang terkait. Jurnal ini juga membahas mengenai Pemodelan spasial terintegrasi melibatkan penggunaan teknologi untuk memvisualisasikan dan menganalisis data geologi secara spasial. Identifikasi pola dan tren, pemodelan risiko, serta pengambilan keputusan dalam pengelolaan risiko geologis.
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Geologi
Articles 28 Documents
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Fasies Gunungapi Soputan, Daerah Kilometer Tiga Dan Sekitarnya, Kecamatan Amurang, Kabupaten Minahasa Selatan, Sulawesi Utara Tandipajung, Jeremy; Rachmadhan, H.D.
Journal Geological Processes, Risks, and Integrated Spatial Modeling Vol 2 No 2 (2024): Journal Geological Processes, Risk and Integrated Spatial Modeling
Publisher : LPPM Universitas PRISMA

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Abstract

This research was conducted to reveal the geological characteristics and facies of volcanoes in the Kilometer Three area and its surroundings, Amurang District, South Minahasa Regency, North Sulawesi. The research area is part of Mount Soputan, one of the active volcanoes in North Sulawesi, which shows complex volcanic dynamics due to tectonic interactions between the Eurasian Plate and the Maluku Sea. Research methods include field surveys, geomorphological observations, geological mapping, petrographic analysis, and evaluation of geological structures. The results of the study identified four main geomorphological land forms, namely volcanic foothills, volcanic foothills, denunated volcanic hills, and fluvial plains. The stratigraphy in this area consists of six rock units, including alluvial units, lapili tufts, volcanic brecci, and porphyry andesite, reflecting variations in volcanic deposition and erosion processes. Analysis of geological structures reveals the presence of structures that develop due to intensive tectonic activity. Based on the distribution of volcanic materials and stratigraphic characteristics, this area is classified into the distal facies of Mount Soputan, which is characterized by the dominance of pyroclastic materials such as tuff and breccia. The geological potential of this area includes abundant stone mining resources, but it is also accompanied by geohazard risks such as landslides due to steep slope morphology and unconsolidated materials.
Karakteristik Geomorfologi dan Stratigrafi Daerah Lambak , Kecamatan Ratatotok, Sulawesi Utara Kakambong, Stela; Rachmadhan, H.D.
Journal Geological Processes, Risks, and Integrated Spatial Modeling Vol 2 No 2 (2024): Journal Geological Processes, Risk and Integrated Spatial Modeling
Publisher : LPPM Universitas PRISMA

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Abstract

This study was conducted in Lambak District, Ratatotok District, Southeast Minahasa Regency, North Sulawesi, to identify geomorphological and stratigraphic characteristics that reflect the complex geological history of the area. The methods used include geomorphological mapping, field observations, and petrographic analysis. The study area has two main geomorphological origins: structural and denudational. Structural forms include hills controlled by geological structures such as faults and folds, while denudational forms are dominated by hills resulting from intensive erosion processes. The stratigraphy of this area includes alluvial units, limestone (packstone and crystalline), and andesite intrusions. These units show a geological history that is closely related to tectonic and volcanic activity in the Sangihe magmatic arc during the Middle Miocene. The river drainage patterns in the study area, such as parallel, sub-dendritic, and trellis patterns, are strongly influenced by the geological structure and lithology of the rocks. The results of this study provide an important contribution to understanding the potential of geological resources, including mineralization and groundwater, as well as mitigating the risk of natural disasters such as landslides and tectonic deformation. The data produced is expected to support sustainable exploration of natural resources in this region.
GEOWISATA PULAU MANADO TUA, PULAU BUNAKEN DAN PULAU SILADEN DI KAWASAN TAMAN NASIONAL BUNAKEN, KOTA MANADO, PROVINSI SULAWESI UTARA. Djaya, Andika; Masulili, Febryanto
Journal Geological Processes, Risks, and Integrated Spatial Modeling Vol 3 No 1 (2025): Journal Geological Processes, Risk and Integrated Spatial Modeling
Publisher : LPPM Universitas PRISMA

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Abstract

ABSTRACT: Geotourism is nature tourism to invite tourists to see geological phenomena and find out how these phenomena occur around us. Packed with several other aspects, such as: geological diversity, biological diversity and cultural diversity, so that geotourism has the best development potential in supporting tourism by prioritizing the principle of protection (conservation) of nature for the sustainability of the ecosystem. This research was conducted with three methods, namely the literature study stage, the field research stage, and the geosite and geodiversity site inventory stage based on the technical guidelines for the assessment of geological heritage resources where the scoring method was proposed by J, Brilha (2016). The parameters used are the assessment of scientific values, educational values, tourism values, and the risk of degradation and added value owned by a geosite. From the results of research on the three islands, 4 geosites and geodiversity sites were found, namely, Bunaken Pyroclastic Cliffs, Contact Pyroclastic Cliffs with Bunaken Limestone, Old Manado Lava Flow, and Bunaken Reef Limestone Cliffs. In addition to these geosites, caves, other beaches that can be potential geodiversity sites. Thus the Bunaken National Park area has the potential to become a geotourism object with assessment aspects based on the quantitative value of various natural beauties and geological processes that control the formation of the geotourism object. To increase the potential of geotourism, infrastructure development and good promotional planning are needed so that it can become a leading tourist location in Manado City.
GEOLOGI DAERAH BATU CERMIN, SAMARINDA UTARA, KOTA SAMARINDA, KALIMANTAN TIMUR Mangalik, Dian
Journal Geological Processes, Risks, and Integrated Spatial Modeling Vol 3 No 1 (2025): Journal Geological Processes, Risk and Integrated Spatial Modeling
Publisher : LPPM Universitas PRISMA

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Abstract

Batu Cermin is located in Kelurahan Sempaja Utara, Samarinda Utara District, Samarinda City, East Kalimantan Province, within the Lower Kutai Basin. This area exhibits a complex stratigraphic and structural geology, featuring outcrops from the Pulau Balang Formation and Bebuluh Formation. Field observations identified lithological similarities between these formations, highlighting the distinctive characteristics of different depositional environments. Geological mapping in Batu Cermin was conducted to obtain detailed data on lithology, morphology, slope gradients, drainage patterns, and structural geology. This process involved a combination of field observations and satellite imagery analysis. The mapping results provide a comprehensive understanding of the dominant lithology, geological history, and the relationships between formations within the study area. A total of 34 observation stations were distributed over a 1 km² area, focusing on lithological, morphological, and structural geological observations. Based on the mapping results, the Batu Cermin area consists of three primary rock units: Batu Cermin Mudstone Unit, Batu Cermin Limestone Unit, and Batu Cermin Sandstone Unit. These three units exhibit a conformable stratigraphic relationship. Geomorphologically, Batu Cermin shows a monocline ridge (S11), forming steep hills with a dendritic drainage pattern, as well as denudational features such as eroded hills (D1) and nearly flat plains (D5) with gentle to moderate slopes. The main geological structure in this area includes shear joints, which formed as a result of dominant stresses oriented in a Southeast-Northwest direction, with additional stress from the Northeast-Southwest, indicating tectonic activity that has influenced the region.
ANALISIS POTENSI FAKTOR PENYEBAB BANJIR DI KECAMATAN DAYEUHKOLOT KABUPATEN BANDUNG heryanti, adila sani; noveriza supryatna, keyra syifa; rahayu , yayu; septiadi, muhammad andi
Journal Geological Processes, Risks, and Integrated Spatial Modeling Vol 3 No 1 (2025): Journal Geological Processes, Risk and Integrated Spatial Modeling
Publisher : LPPM Universitas PRISMA

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Abstract

Recurrent flooding in Dayeuhkolot District, Bandung Regency, demonstrates the ineffectiveness of disaster risk reduction policy implementation. This study aims to evaluate the implementation of these policies in building regional resilience to flooding. The method used is descriptive qualitative with triangulation techniques through interviews, observations, and documentation studies. The results show that flooding is triggered by natural factors (high rainfall, basin topography), technical (inadequate drainage), and social (population density, waste disposal behavior, and low community participation) factors. The conclusion of this study shows that these three natural, technical, and social factors are interrelated and collectively increase the region's vulnerability to flooding, while the implementation of flood risk reduction policies is considered suboptimal due to weak coordination between institutions and minimal active community involvement. This study contributes to providing a basis for the formulation of more adaptive, collaborative, and locally appropriate policies to strengthen regional resilience to flooding.
GEOLOGI DAERAH PALAES DAN SEKITARNYA KECAMATAN LIKUPANG BARAT, KABUPATEN MINAHASA UTARA, SULAWESI UTARA KADIR, ALVYUS; Budiharso, Agus Santoso; Rachmadhan, H.D.
Journal Geological Processes, Risks, and Integrated Spatial Modeling Vol 3 No 1 (2025): Journal Geological Processes, Risk and Integrated Spatial Modeling
Publisher : LPPM Universitas PRISMA

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This research aims to analyze the geological conditions of the Palaes area and its surroundings in West Likupang District, North Minahasa Regency, North Sulawesi. The study covers an area of approximately 16 km², administratively including the villages of Palaes, Lansa, Lantung, Kulu, and Warisa. The research method involves surface geological mapping at a scale of 1:10,000, including geomorphological observation, lithological analysis, structural measurement, and petrographic analysis. Data were processed using the Dips software and spatial analysis based on DEMNAS to interpret morphological lineaments. The results show that the geomorphology of the study area consists of six landform units formed by three main genetic processes: structural, denudational, and fluvial. The stratigraphy comprises four lithological units: the Palaes Sandstone Unit, the Palaes Breccia Unit, the Lansa Andesitic Lava Unit, and the Alluvial Unit. Structural data indicate dominant lineaments trending northwest–southeast, interpreted as normal faults, evidenced by geomorphic features such as waterfalls and straight valleys. The geological history reflects a sequence of sedimentation and volcanic activity, followed by tectonic processes that shaped the major geological structures of the region. This research produced a geological map, a geomorphological map, and a stratigraphic column that serve as a scientific basis for geological resource exploration, hazard assessment, and land-use planning based on local geological characteristics.
GEOLOGI DAERAH LANSOT DAN SEKITARNYA, KECAMATAN TARERAN, KABUPATEN MINAHASA SELATAN, SULAWESI UTARA: GEOLOGI DAERAH LANSOT DAN SEKITARNYA, KECAMATAN TARERAN, KABUPATEN MINAHASA SELATAN, SULAWESI UTARA Mewengkang, Berliano; Momongan, Andrew; Rachmadhan, H.D.
Journal Geological Processes, Risks, and Integrated Spatial Modeling Vol 3 No 1 (2025): Journal Geological Processes, Risk and Integrated Spatial Modeling
Publisher : LPPM Universitas PRISMA

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Abstract

Study area is located in North Sulawesi, precisely in Lansot Village, Tareran District, South Minahasa Regency. This research aims to investigate the geological conditions of the area, including geomorphological parameters, stratigraphy, petrology, and petrography, as well as to reconstruct its geological history, which will be presented in a 1:25,000-scale geological map. The methods employed in this study include SRTM image analysis, field observations, and laboratory analysis of rock samples.Geomorphologically, the study area is divided into three landform units: the remaining hills (VD4), Dissected Volcanic Slopes (VD2), and Pyroclastic Ridge Flow (V12). Stratigraphically, the rock succession in the area, from oldest to youngest, consists of: Rumoong Lansot Tuff, Lapi Tuff, and Tumaluntung Tuff. The geological structures in the area are the result of rock and crustal deformation that has occurred over thousands of years. The geological history of the study area began when it was still part of the ancient Tondano volcano, which later collapsed due to a major explosive eruption, giving rise to younger volcanic centers that became the sources of Quaternary volcanic rocks (Qv).
“GEOLOGI DAERAH BAILANG DAN SEKITARNYA, MANADO PROVINSI SULAWESI UTARA” Dote, Mesak; Masulili, Febryanto
Journal Geological Processes, Risks, and Integrated Spatial Modeling Vol 3 No 1 (2025): Journal Geological Processes, Risk and Integrated Spatial Modeling
Publisher : LPPM Universitas PRISMA

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Abstract

This study aims to understand the geological conditions of the Bailang area and its surroundings, located in Bunaken District, Manado City, North Sulawesi Province, through surface geological mapping at a 1:25,000 scale. The methods used include direct observation, field measurement, and analysis of geomorphology, stratigraphy, geological structure, and geological history. The study area is situated at coordinates 1˚33ˈ54.98˝ N and 124°50ˈ42.87˝ E, covering an area of 49 km². The geomorphology of the study area is divided into six subunits: Residual Hills, Isolated Hills, Dissected Volcanic Hills, Volcanic Foot, Volcanic Footplain, and Volcanic Fluvial Plain. The geological structure analysis reveals the presence of primary structures with a dominant northwest–southeast orientation. The stratigraphy consists of four rock units: the Pandu–Molas Andesite Lava Unit (Pleistocene–Holocene), the Molas Breccia Unit (Pleistocene), the Bailang Tuff Unit (Quaternary), and the Alluvial Unit (Holocene). These units formed through four geological phases reflecting volcanic activity from Mount Tumpa and fluvial sedimentation processes. The research outcomes include geological, geomorphological, and traverse maps that illustrate the geological framework of the area. This information is expected to support a deeper understanding of the regional geological evolution of North Sulawesi and provide valuable insights for spatial planning and local natural resource management. Keywords: geological mapping, geomorphology, stratigraphy, geological structure, Bailang.

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