Abstract
Administratively the study area is located in Maja Village which situated near the border of between Sumedang and Majalengka Regency, West Jawa – Indonesia. Geographically located at coordinates 108°11'28 - 108°13'42 Longitude and 6°51'28 - 6°55'30' Lattitude. In the study area the Formation Cinambo was widely distributed. Geological observation was conducted in Cirompoki River, Kadu River, and Cimaningtim River such as outcrops description and detail measuring section and rock sampling for granulometry as well as biostratigraphy analysis. The stratigraphy of Cinambo Formation is divided into Claystone-sandstone unit (facies D), Sandstone-mudstone units (facies C), Sandstone Unit (facies B) and Claystone units (facies E). This formation deposited in the mechanism of high density turbidite current. Plankton fossils showed that this formation was deposited in Middle Miocene to Early Pliocene (N11-N18) in upper bathyal environment. Integrated result of sediment profiles and granulometry showed that sedimentation of Cinambo Formation had characteristics which are: coarsening upward, etc. The vertical succession of Fm. Cinambo sandstone caused by current mechanisms of saltation, suspension, traction, that changed according to depositional environment. This formation was deposited in the outer part of submarine fan change until its middle part. Environmental change caused by influenced of eustacy in relative sea level drop.
Highlights
Turbidite deposits was the sedimentation formed as a result of gravity currents in the slope area, formed both in a sudden or continuous event, and may occur in short or long time due to energy involved, wether it may be earthquakes, floods or falling sediments
Many studies on turbidite sediments began to develop either surface data or seismic data, because turbidite deposits play an important role as potential reservoirs in several oil fields in Indonesia
The Cinambo formation formed in Bogor Basin during the middle to late Miocene, which known as turbidite deposit in deep sea fan environment [1]
Summary
Turbidite deposits was the sedimentation formed as a result of gravity currents in the slope area, formed both in a sudden or continuous event, and may occur in short or long time due to energy involved, wether it may be earthquakes, floods or falling sediments. Many studies on turbidite sediments began to develop either surface data or seismic data, because turbidite deposits play an important role as potential reservoirs in several oil fields in Indonesia. The Cinambo formation formed in Bogor Basin during the middle to late Miocene, which known as turbidite deposit in deep sea fan environment [1]. The site was selected, because the adequate presence of ideal rock outcrops with excellent and fresh condition, which can show a good record of turbidite depositional system. To provide good geological data for the inundation process of Jatigede Dam Area
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
