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All Journal Bulletin of Scientific Contribution : Geology IJOG : Indonesian Journal on Geoscience Jurnal RISET Geologi dan Pertambangan Journal of Engineering and Technological Sciences Jurnal Teknologi Mineral dan Batubara BULLETIN OF THE MARINE GEOLOGY JKTP: Jurnal Kajian Teknologi Pendidikan Indonesian Mining Journal JURNAL METEOROLOGI DAN GEOFISIKA Indonesian Journal on Geoscience Indonesian Journal on Geoscience Devotion: Journal of Research and Community Service Jurnal Pengabdian Masyarakat Bhinneka Jurnal Teknologi Mineral dan Batubara Journal of Geosciences and Applied Geology Jurnal Meteorologi dan Geofisika
Abdurrokhim ⠀
Departemen Geologi Sains, Fakultas Teknik Geologi, Universitas Padjadjaran
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Materials Science & Nanotechnology Physics Public Health Other

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STRATIGRAPHIC ANALYSIS AND DISTRIBUTION OF ROCK UNITS IN THE CIPATAT AREA, WEST BANDUNG REGENCY, WEST JAVA PROVINCE, INDONESIA Margereta, Natasya; Haryanto, Iyan; Abdurrokhim, Abdurrokhim
Journal of Geological Sciences and Applied Geology Vol 9, No 2 (2026): Journal of Geological Sciences and Applied Geology
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v9i2.70736

Abstract

Geological mapping of the Cipatat area, West Bandung Regency, West Java Province was conducted at a scale of 1:12,500 to establish the stratigraphic succession, spatial distribution of rock units, and structural configuration of the region. Three rock units were identified spanning the Late Oligocene to Quaternary: the Rajamandala Limestone Unit (TOMBG), the Citarum Sandstone Unit (TMBP), and the Quaternary Volcanic Unit (QV). The Rajamandala Limestone, deposited in a shallow neritic carbonate platform, is biostratigraphically constrained to zones Te3–Tf1 based on larger foraminifera including Lepidocyclina, Operculina, Miogypsina, and Cycloclypeus, while petrographic analysis confirms mudstone to packstone facies. The overlying Citarum Sandstone Unit represents a deep-marine turbidite system characterized by graded bedding, parallel lamination, and load casts defining a Bouma sequence dominated by the Tb facies, with foraminifera assemblages assigning deposition to Middle Miocene zones N5–N9 and reflecting progressive basin deepening from neritic to bathyal conditions. Petrographic analysis of the sandstone further supports classification as volcanic-derived lithic wacke, consistent with a volcanogenic provenance. The Quaternary Volcanic Unit unconformably caps the sequence, marking a shift from marine sedimentation to subaerial volcanism. Structural analysis reveals three major fault systems — the Cibuntu, Cibrengkok, and Cilimus River Faults — developed under a northwest–southeast compressional regime attributed to Miocene–Plio-Pleistocene Sunda Arc convergence, generating west–east-trending fold pairs that govern the present ridge-valley morphology and lithological distribution across the study area
Co-Authors Adhiperdhana, Billy Gumelar Adjat Sudradjat Adjat Sudradjat Adriano Mazzini Agus Nur, Andi Agustya Agustya Ajat Sudrajat Akbar, Muhammad Miftahul Andi Agus Nur Asep Mohamad Ishaq Shiddiq Atmadibrata, Riza Atmadibrata, Riza Bernadeta Subandini Astuti Bonar Tua Halomoan Marbun, Bonar Tua Halomoan Brian Christiantoro Budi Muljana Budiana, Rahmat Christiantoro, Brian Dedi Kuswandi Dicky Muslim Dwandari Ralanarko Edy Sunardi Faisal Helmi Fatmayanti, Fera Febriwan Mohamad Febriwan Mohammad Febriwan Mohammad, Febriwan Fercanza, Frisdio Firman Herdiansyah, Firman Firstikara, Ghania Callysta Hardjowikarto, Dharliana Ayu Hastowo Resesiyanto Hendarmawan H Hendarmawan Hendarmawan Herlinawati H Hirnawan, R. Febri Hirnawan, R. Febri Ildrem Sjafri Ildrem Syafri Irvan Sophian Ismawan Ismawan, Ismawan Iyan Haryanto Januar Arifin Johanes Hutabarat Karyono Karyono Lia Jurnaliah Margereta, Natasya Masturyono Masturyono Mohamad Solihin, Mohamad Morang, Febrika Situ Muhammad Kurniawan Alfadli mutiara mutiara Nisa Nurul Ilmi Nugroho, Dimas Andhi Nur Khairullah Nuraeni, Tia Nursasono, Danny Panji Ridwan Petra Wattimury Popi, Popi Prasetyo, Anggit Chandra R. Febri Hirnawan Rachma, Nabila Fathiyah Resesiyanto, Hastowo Reza Muhammad Ganjar Gani, Reza Muhammad Ganjar Ridho Kresna Wattimena Ridho Kresna Wattimena Riza Atmadibrata Rohimah, Sania Saida Ulfa Saputra, Akbar Wahyudi Adi Sari Widyastuti, Sari Savitri, Cindy Dhevayani Shiddiq, Asep Mohamad Ishaq Soffian Hadi Sudarsana, Muhammad Rizki Supriyanto Rohadi Syafi'i, Abdullah Vijaya Isnaniawardhani Wahyuningsih, Amelya Andini Wattimury, Petra Yoga Adriana Sendjaja, Yoga Adriana Yuyun Yuniardi Zahran, Raihan Zaki Zulfahmi Zulfahmi ZULFAHMI ZULFAHMI