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All Journal Bulletin of Scientific Contribution : Geology Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal)
Gusti, Ugi Kurnia
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Agriculture, Biological Sciences & Forestry Chemistry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Education Energy Environmental Science Physics

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Kontrol Struktur Geologi Terhadap Distribusi Manifestasi Panas Bumi di Daerah Subang dan Sekitarnya, Kabupaten Kuningan, Provinsi Jawa Barat. Rastra, Rastra Yandra Satya Nugraha; Sutriyono, Edy; Gusti, Ugi Kurnia
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 6 No. 4 (2025): November
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v6i4.1254

Abstract

The influence of geological structures on the distribution of geothermal manifestations in the Subang area and its surroundings, Kuningan Regency, West Java Province, was assessed through an integrated approach combining lineament analysis based on Digital Elevation Model (DEM) imagery, fault and fracture density mapping, surface temperature analysis using Landsat 8 imagery, and surface geological surveys. The results indicate that three main hot spring points are closely associated with high-density fracture zones and active thrust fault systems. The primary geological structures controlling the system include the Ci Monte Fault and Situ Gede Fault, as well as the Ci Monte Syncline and Pamulihan Anticline, all trending east–west and formed due to compressive stress oriented north–south and northeast–southwest. These faults and fractures are strongly inferred to serve as migration pathways for hydrothermal fluids from the reservoir to the surface. The alignment of geothermal manifestations with geological structures highlights the critical role of active fractures and faults as the main controlling factors in the geothermal system. This conclusion underscores that geological structures function not only as natural permeable conduits but also as key indicators in geothermal exploration, especially in tectonically active regions.
Mekanisme Pembentukan Struktur Geologi Daerah Ciwaru dan Sekitarnya, Kabupaten Kuningan, Jawa Barat Ramadhani, Jesica Nabilah; Sutriyono, Edy; Gusti, Ugi Kurnia
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 6 No. 4 (2025): November
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v6i4.1305

Abstract

Daerah Ciwaru merupakan salah satu wilayah administratif di Kabupaten Kuningan Provinsi Jawa Barat. Penelitian ini bertujuan untuk mengidentifikasi keterkaitan arah tegasan (gaya) terhadap pembentukan struktur geologi berupa lipatan dan sesar dengan didukung data pemetaan geologi dan citra DEM. Pemetaan geologi didukung dengan Analisa data struktur geologi untuk menginterpretasikan struktur daerah penelitian. Satuan batuan pada Lokasi penelitian meliputi 3 formasi yaitu Formasi Rambatan (Tmr), Formasi Halang (Tmph), dan Anggota Gunung Hurip Formasi Halang (Tmhg). Pada daerah penelitian ditemukan struktur geologi berupa Sinklin Lebakherang, Antiklin Sumberjaya, Antiklin Ciwaru, Sinklin Dukuh Picung, Sinklin Jalatrang, Antiklin Cipakem. Sesar Cipakem, Sesar Sagaranten, Sesar Cikalong, Sesar Ci Golok dan Sesar Ci Honje. Data yang telah dikumpulkan dilakukan analisa struktur software Win tensor dan dips guna mengetahui gambaran struktur geologi di daerah penelitian, dan di intregasikan dengan kenampakan pada peta Digital Elevation Model (DEM). Berdasarkan hasil dan analisis didapatkan 7 lipatan membentuk orientasi Barat – Timur (Orde 1) akibat kompresional Utara – Selatan dan membentuk 2 struktur sesar dengan Orde 1 yaitu Sesar Cipakem dan Sesar Ci Golok. Selanjutnya terbentuk Sesar Sagaranten (Orde 1) akibat dari gaya tensional yang berarah Timur Laut – Barat Daya. Terdapat secondary stress berarah Barat Baratlaut - Timur Tenggara sehingga membentuk sesar orde 2 yaitu Sesar Kalong dan Sesar Ci Honje.
Geomorphological Characteristics and Their Implications for Development Planning in the Muaro Kalaban Area, West Sumatra, Indonesia Gusti, Ugi Kurnia
Bulletin of Scientific Contribution Vol 24, No 1 (2026): Bulletin of Scientific Contribution : GEOLOGY
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/bsc.v24i1.69483

Abstract

Understanding geomorphic units and expressions is essential for development planning in areas undergoing tectonic deformation and active surface processes. Several factors such as variations in slope, landform type, and fluvial dynamics strongly influence the occurrence of possible geomorphic hazards such as landslides, erosion, and flooding. Muaro Kalaban area that is located in Sawahlunto City, West Sumatra, Indonesia, exhibits diverse geomorphic conditions that require detailed analysis to support sustainable development area planning. This study integrates field-based geomorphological observations with remote sensing analysis. Then followed with geomorphological mapping that was conducted through morphological and geomorphic process observation, focusing on erosion, weathering, geological structures, fluvial activity, and slope measurement and calculation. DEM derived parameters, including elevation and slope gradient, were used to delineate and validate geomorphic units and their spatial distribution. The results indicate that the study area consists of four main geomorphic units: denudational hills with moderate to steep slopes, denudational hills with gentle slopes, the Kepalakoto floodplain, and a meandering river channel. This study found that each geomorphic unit exhibits distinct surface processes and hazard potentials. The results revealed that denudational hills that are mostly associated with surface erosion and slope instability, while the floodplain and meandering river channel geomorphic units are characterized by fluvial processes and are prone to flooding and channel migration. This study inferred that geographical distribution and features of these geomorphic units emphasize significant limitations and challenges for development planning in Muaro Kalaban. By integrating geomorphological data into landuse planning perhaps can assist in identifying hazardprone areas, and also beneficial to promote sustainable development solutions which can reduce geomorphic risk..
Co-Authors Edy Sutriyono Ramadhani, Jesica Nabilah Rastra, Rastra Yandra Satya Nugraha