Basin: Jurnal Teknik Geologi Department of Geological Engineering, Faculty of Engineering, Universitas Mulawarman Jl. Sambaliung No.9 Samarinda, Kalimantan Timur, 75119 E-Mail : teknikgeologi@ft.unmul.ac.id Web : http://e-journals.unmul.ac.id/index.php/TG Telp : (0541) 736834 Faks. (0541) 749315