DOI Number : 10.5614/itbj.sci.2003.35.2.3
Hits : 40

Analisis Dinamik Tegasan Purba pada Satuan Batuan Paleogen – Neogen di Daerah Pacitan dan Sekitarnya, Provinsi Jawa Timur Ditinjau dari Studi Sesar Minor dan Kekar Tektonik

C. I. Abdullah1, N. A. Magetsari1 & H. S. Purwanto2

1Departemen Teknik Geologi, FIKTM, ITB, Bandung

2Jurusan Teknik Geologi, UPN “Veteran”, Yogyakarta


Abstract.

There are four trends of geological structures in the region of Pacitan and its closed surrounding, as the result of the tectonic deformation which occured during the Tertiary up to Quaternary. Those trends of geological structures are classified as fault groups in the direction of NW - SE (N3100E - N3300E), N - S (N3500E - N0100E), NE - SW (N0450E - N0500E), and E - W (N0800E). The result of the paleostress reconstruction based on the minor faults and shear fractures, point to three axis direction of principle stress: First, Early Miocene Stress with the s1 direction between 150, N1640E - 090, N1700E. The respective stress caused the formation of fault in the direction of NW - SE and fold structures. Second, Middle Miocene Stress with the s1 direction between 160, N1920E – 150, N1960E , which caused the formation of fault in the direction of NE - SW and N - E. Third, Plio-Pleistocene Stress with the s1 direction 140, N1980E. This latest stress caused the reactivation of the fault groups which occurred previously.



Keywords: -

Download Article
 
Bahasa Indonesia | English
 
 
 

Notification:

Begin on 10 October 2014 this website is no longer activated for article process in Journal of Mathematical and Fundamental Sciences, Journal of Engineering and Technological Sciences, Journal of ICT Research and Applications and Journal of Visual Art and Design. The next process will be proceeded under new website at http://journals.itb.ac.id.

For detail information please contact us to: journal@lppm.itb.ac.id.

 
       
       
       ITB Journal Visitor Number #12173523       
       Jl. Tamansari 64, Bandung 40116, Indonesia Visitor IP Address #       
       Tel : +62-22-250 1759 ext. 121 © 2011 Institut Teknologi Bandung       
       Fax : +62-22-250 4010, +62-22-251 1215 XHTML + CSS + RSS       
       E-mail : journal@lppm.itb.ac.id or proceedings@lppm.itb.ac.id Developed by AVE