Dicko Rizky Febriansanu, Angga Ahya Huseina, Andri Yadi Paembonan
Lampung Bay is an area with a busy shipping traffic from port of Panjang and port of Teluk Betung. There are several river contain sediments and sedimented in Teluk Betung area. By conducting a research in this area, we can determine the sediment depositional system. The research method that will be used is the analysis of sediment deposition profiles from core data and interpretation from Ground Penetrating Radar (GPR). From sedimentary analysis, older sediments have a clay to coarse sand with relatively firm contact with coarsening upward patterns. In the top, they have a medium to clay with a fining upward pattern. The existence of a relatively thick clay layer indicates a relatively marginal depositional environment. These clay layers may form in the lower subtidal environment and gradually change to the upper intertidal environment until supratidal. This can be seen from the GPR result which show the sediment boundary. The GPR profiles confirm that the upper part mostly contains the sand or clay sand with sea water intrusion which has high conductivity and dielectric permittivity . The deeper zone could not well interpreted due to lack of the sediment information, but they show the contact of the sediment layers with different amplitude. © Published under licence by IOP Publishing Ltd.
Geological Engineering, Institut Teknologi Sumatera, Lampung Selatan, Indonesia
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