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STRUKTUR GEOLOGI DI PERAIRAN PASANG KAYU, SULAWESI BARAT
Author(s) -
Mustafa Hanafi,
Lukman Arifin
Publication year - 2016
Publication title -
jurnal geologi kelautan
Language(s) - English
Resource type - Journals
eISSN - 2527-8851
pISSN - 1693-4415
DOI - 10.32693/jgk.8.3.2010.192
Subject(s) - diapir , geology , fault (geology) , seismology , geomorphology , geochemistry , tectonics
Daerah penelitian dicirikan oleh morfologi dasar laut yang terjal dan bergelombang dengan kedalaman bervariasi dari 40 meter di bagian timur hingga 2150 meter di bagian utara. Berdasarkan data rekaman seismik pantul dapat diidentifikasi adanya struktur geologi berupa sesar, lipatan, dan diapir. Kenampakan struktur-struktur tersebut ditandai dengan adanya lapisan yang patah, bergelombang, dan bentuk kubah. Sesar umumnya berarah timurlaut-baratdaya, dimana perkembangannya diduga sangat dipengaruhi tektonik regional terutama sesar utama Palu-Koro yang ada di daratan Pulau Sulawesi dan menerus ke laut sekitar lokasi penelitian. Kata kunci: morfologi, struktur geologi, sesar Palu-Koro, Pasangkayu The study area is characterized by the steep sea floor morphology with the depth from 40 metres in the east to 2150 metres in the north. On the basis of reflection seismic records, the geological structures such as faults, folds, and diapirs can be recognized. The appearance of such structures is signed by the faulted, wavy and domed layers. The faults in general have NE –SW direction, where it development possibly influenced by the regional Palu-Koro Fault present in Sulawesi island that continue to the study area. Keywords: morphology, geological structures, Palu –Koro Fault, Pasangkayu

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