#TITLE_ALTERNATIVE#

• Main Author: PRATAMA (NIM : 12008080); Pembimbing : Dr. Ir. Chalid Idham Abdullahh; Dwiharso Nugroho ST, , SETYADI
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/19454
• Institution: Institut Teknologi Bandung

The research area is located in Mulyoagung area, Distric of Singgahan, East Java Province. Geographically, the area is located at UTM 49 S, 584000-588000 M and <br /> <br /> <br /> <br /> <br /> 9230000-9235000 M. The area is 20 km2. Morphology of the research area commonly consists of wide to close contours, with the elevation of 90 to 299 m above sea level. Morphological features are observed with contour map, Shuttle Radar Topographic Mission (SRTM) image, and direct field observation. The research area can be divided to 5 geomorphological units, consist of Homoclinal Valley, Sinclinal Valley, Sinclinal Hills, Anticlinal Valley, and Anticlinal Hills. <br /> <br /> <br /> <br /> <br /> Stratigraphy of the research area are divided into 5 unofficial lithological units from early to late: Quartz Sandstone Unit, Limestone 1 Unit, Marl Unit, Limestone 2 <br /> <br /> <br /> <br /> <br /> Unit, and Alluvial Deposit Unit. Geological Structures of the research area are Kumpulrejo Anticline, Gegunung <br /> <br /> <br /> <br /> <br /> Sincline, Kembangan Anticline, and Tiwiyan Thrust Fault. <br /> <br /> <br /> <br /> <br /> Geological history of the research area started at Middle Miocene with the deposition of Quartz Sandstone Unit. When transgression occured in the Middle Miocene, <br /> <br /> <br /> <br /> <br /> Limestone 1 unit was deposited over Quartz Sandstone Unit. Transgression continued until Late Miocene while Marl Unit intercalation with Limestone 2 Unit was deposited in the research area. After that, at Plio-Plistocene, occured compression regime, regional uplift, fold, and Tiwiyan Thrust Fault. From Plio-Plistocene to Recent, erosion and river flow deposited Aluvial Deposit Unit and formed therecent form morphology. <br /> <br /> <br /> <br /> <br /> Diagenetic study of limestone in Bulu Formation was done by using petrography analysis with 10 hand specimens of Limestone 1 Unit to make a composite log (resume of <br /> <br /> <br /> <br /> <br /> diagenetic product) of Bulu Formation. Those petrography analytical showed that the main diagenetic proses which occured in Limestone of Bulu Formation are cementation, <br /> <br /> <br /> <br /> <br /> compaction, neomorfisme (replacement, recristalization), dissolution, and micritization microbial. The diagenetic environtment for Limestone of Bulu Formation are Marine <br /> <br /> <br /> <br /> <br /> Phreatic, Mixing zone, Burial Environment, Meteoric Phreatic, and Meteoric Vadose.