#TITLE_ALTERNATIVE#

• Main Author: EKA SATRYA( NIM : 12010066 ); Pembimbing : Dr. Ir. Yan Rizal, Dipl. Geol., ANDHIKA
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/17928
• Institution: Institut Teknologi Bandung

The research is conducted in Babakanjawa Village which is included into <br /> <br /> <br /> <br /> <br /> <br /> Majalengka District and Sumedang District, West Java, at 187000 m - 192000 m <br /> <br /> <br /> <br /> <br /> <br /> dan 9236000 m - 9240000 m (UTM Zona 49S) with an area of approximately 20 <br /> <br /> <br /> <br /> <br /> <br /> km2. The purpose of this research is to know geological aspects on research area. <br /> <br /> <br /> <br /> <br /> <br /> The research area is divided into three geomorphological units, these are <br /> <br /> <br /> <br /> <br /> <br /> Fault Hill Unit, Hogback Hill Unit, and Intrusion Hill Unit. Geomorphic stage in <br /> <br /> <br /> <br /> <br /> <br /> the geomorphological units is mature geomorphic stage. <br /> <br /> <br /> <br /> <br /> <br /> The research are is divided into four lithostratigraphy units. The <br /> <br /> <br /> <br /> <br /> <br /> lithostratigraphy of research area from the oldest to youngest consist of Mudstone <br /> <br /> <br /> <br /> <br /> <br /> Unit of Middle Miocene (N12-N13), Sandstone-Mudstone Unit of Middle Miocene <br /> <br /> <br /> <br /> <br /> <br /> (N14-N15), and Conglomerate Unit of Early Pleistocene. There is Andesite <br /> <br /> <br /> <br /> <br /> <br /> intrusion that intruded the research area at Pleistocene. <br /> <br /> <br /> <br /> <br /> <br /> Geological structures which is formed have orientations of Northwest- <br /> <br /> <br /> <br /> <br /> <br /> Southeast and Northeast-Southwest that consist of strike and dip, Kadumalik Strikeslip <br /> <br /> <br /> <br /> <br /> <br /> Fault, Palasari Thrust Fault, Kadumalik Thrust Fault, Cibantarbodas Thrust <br /> <br /> <br /> <br /> <br /> <br /> Fault, Cilutung Thrust Fault, Kadu Thrust Fault, Palasari Anticline, Cilutung <br /> <br /> <br /> <br /> <br /> <br /> Anticline, Babakanjawa Anticline, and Babakanjawa Sincline. <br /> <br /> <br /> <br /> <br /> <br /> Mudstone unit was deposited in the middle Miocene epoch. This unit was <br /> <br /> <br /> <br /> <br /> <br /> deposited at the bathyal zone. In the middle Miocene epoch (N14-N15), Sandstone <br /> <br /> – Mudstone unit was deposited on the top of mudstone unit. Depositional <br /> <br /> <br /> <br /> <br /> <br /> mechanism of this unit was gravity flow at the lower fan of submarine fan. At the <br /> <br /> <br /> <br /> <br /> <br /> Pliocene – Pleistocene epoch, compressional deformation happened and causes <br /> <br /> <br /> <br /> <br /> <br /> thrust faults, folds, and strike-slip fault. At that time also happened volcanic activity <br /> <br /> <br /> <br /> <br /> <br /> that causes andesite intrusion. In the Early Pleistocene, the research area has <br /> <br /> <br /> <br /> <br /> <br /> become surface and Conglomerate Unit was deposited through braided stream <br /> <br /> <br /> <br /> <br /> <br /> fluvial system. Geological processes continue to occur such as erosion and <br /> <br /> <br /> <br /> <br /> <br /> sedimentation.