Interpretation of Paleo-Channel Based on Shallow Seismic Reflection Record in Banten Bay, Banten Province
2017
Yogi Noviadi
The objective of this study is to find out the pattern of paleo channel which was formed in Banten Bay and its surrounding. The aims are to find out the paleo-channel pattern at study area. The study methods are including vessel positioning, and shallow seismic reflection work. Vessel positioning method is to locate the exact position of seismic work   when recording the data from single channel of shallow seismic reflection. Seismic line orientations are determined by regional geological setting of the area. Trend of seismic lines are dominantly north – south. In order to get the seismic data which could give geological setting configuration, seismic lines should be perpendicular to the strikes of the sediments. Based on the calculation of velocity of seismic refraction in sea water 1,500 meters/second, while within sediment 1,600 meters/second, it could be concluded that the paleo chanels were more or less in 32 meters below sea floor depth. This layer was the system that occur during the process of an interglacial on the Sunda Shelf when it was still a part of land that connects the Java, Sumatra and Kalimantan Islands. Paleo-channel deposits are characterized by subparalel - chaotic reflection character with a thickness between 5-35 meters.
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