Huzaely Latief Sunan
Geological Engineering, University of Jenderal Soedirman

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The landscape formation history based on the detailed geological investigation in Aribaya and surrounding area, Pangetan district, Banjarnegara regency, Central Java Annisa Helly Suranda; Huzaely Latief Sunan; Indra Permanajati
Journal of Earth and Marine Technology (JEMT) Vol 2, No 2 (2022)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2022.v2i2.2842

Abstract

The research site is in the Aribaya area and surrounding areas with an area of 16 km2 which is administratively included in Pagentan Subdistrict, Banjarnegara Regency, Central Java Province. The research area consists of 13 villages, namely: Suwidak, Pandansari, Karangtengah, Gumingsir, Karangnangka, Aribaya, Larangan, Talunamba, Clapar, Gununggiana, Pakelen, and Nagasari. Research objects in the form of Geomorphology, Stratigraphy, Geological Structure, Geological History, and Geological Potential. The geomorphology of the research area is divided into the Aribaya Fault Zone Unit, Gununnggiana Lava Flow Ridge Unit, and Aribaya Intrusion Unit. Based on unofficial lithostratigraphic units, the research area is divided into three rock units and the order from old to young, namely: Sandstone - Claystone Distribution Unit, Pyroclastic Brection Unit, and Diorit Intrusion Unit. Precipitated Sandstone - Claystone In the middle-upper neritic bathymetry environment, which belongs to the formation of the early Miocene – Middle-aged vines. Furthermore, tectonic activity occurs that causes the research area to form faults and syncline folds. Then at the time of the Early Pliocene, there was an influence from the activity of Mount Maung which provided sediment supply in the form of andesite fragments and matrix-sized Tuff Crystals so as to form a pyroclastic breccia unit. At the Time of the Pliocene, there was also diorite intrusion. The next process is the exogenous process that causes morphological form as it is today. The geological potential contained in the research area in the form of diorite mining excavations (positive potential) and landslide movement (negative potential) is quite a lot in the research area.
SESAR NAIK KALITENGAH SEBAGAI PENGONTROL NAIKNYA BATUAN BERUMUR PRA-TERSIER DAN TERSIER DI DAERAH KALITENGAH, BANJARNEGARA, JAWA TENGAH Huzaely Latief Sunan
Jurnal Sumberdaya Bumi Berkelanjutan (SEMITAN) Vol 1, No 1 (2022)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.semitan.2022.3074

Abstract

Pulau Jawa secara tatanan tektonik merupakan zona subduksi antara lempeng Indo-Australia dengan Eurasia. Aktivitas subduksi menghasilkan struktur geologi salah satunya sesar naik yang dapat mengangkat batuan tua ke permukaan,  sebagai contoh batuan berumur Pra-Tersier dan Tersier. Penyebab terangkatnya batuan berumur Pra-Tersier dan Tersier menarik untuk diteliti. Tujuan Penelitian ini dilakukan untuk mengetahui penyebab terangkatnya batuan berumur Pra-Tersier dan Tersier ke permukaan. Metode penelitian yang dilakukan yaitu pemetaan geologi dan analisis struktur geologi. Pemetaan geologi berupa pemetaan sebaran batuan dan pengukuran unsur struktur geologi. Analisis struktur geologi dengan melakukan rekonstruksi penampang sayatan geologi dan analisis stereografis. Analisis  data struktur geologi membuktikan adanya Sesar Naik Kalitengah dengan kedudukan N304°E/58° NE  Pitch 75° ke arah SW dan struktur Lipatan Donorejo yang memiliki kedudukan axial plane N282°E/78°NE berarah Barat-Timur. Penelitian ini menyimpulkan terangkatnya batuan berumur Pra-Tersier dan Tersier dikontrol oleh kehadiran sesar naik Kalitengah yang merupakan hasil aktivitas dari subduksi di Selatan Pulau Jawa dengan gaya utama berarah Utara-Selatan.
Analysis of Tectonic Influence on Morphological Formation: Case Study of Gapura Pemalang Area Huzaely Latief Sunan; Maula Nurlatifah; FX Anjar Tri Laksono; Asmoro Widagdo
Journal of Earth and Marine Technology (JEMT) Vol 3, No 2 (2023)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2023.v3i2.4518

Abstract

Tectonic activity is closely related to the formation of landforms (morphology) in a region. The study area exhibits morphology controlled by normal fault tectonics, with blocks consisting of highlands and lowlands. This study aims to determine the extent of tectonic influence (normal faulting) on the morphology in the location. The quantitative geomorphological analysis method is used to obtain data on the level of tectonic activity present in the research area. Based on this method, it causes the formation of morphology and geological structures that affect the current surface forms. The methods used to calculate the tectonic influence are the Ratio of Valley Floor Width to Valley Height (Vf) and Mountain Front Sinuosity (Smf). Based on the results of the case study, the average Vf is 0.19, indicating class one tectonic activity and a high uplift level with V-shaped valleys. Meanwhile, the average Smf is 1.45, indicating strong tectonic activity associated with wide plains, narrow valleys, and steep hills. Based on these results, the study location falls into the category of strong tectonic activity, supported by field geological data showing right-lateral strike-slip faults and left-lateral normal faults intersecting each other.