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Papers
SEDIMENT DISTRIBUTION OF CONTINENTAL MARGIN OF THE SOUTHERN BRAZIL BASIN IN THE SOUTHWEST ATLANTIC OCEAN (Pages : 4 - 15)
M.H. MAHABUB, S. M. RAHMAN, M.I. MEHEDI and M.O. FARUKThe present analysis is an approach to use the seismic attributes to extract the geologic information of the Southern Brazil Basin, located on a passive continental margin in the south?west Atlantic, near the Rio Grande Rise. Attributes are computed seismic sections of NGDC data of the area. The implemented amplitude and frequency attributes images of seismic sections have been tried to use for the characterization with the geology of the area. The attributes images reveal that discontinuous sequences are better readable than that of the seismic sections. Remarked sequences are drawn as to be the indication of the continuing process of deposition of the area. The recent depositional overview is found as: terigeneous fluxes are higher at the beginning region of line 29A on the middle continental rise using characterization with frequency anomaly of the frequency attributes images. Deposition is little higher at shallow depths according to the slope of the oceanic crust but ends with all most straight and horizontal manner. Geologic compositions are seemed as almost uniform particularly in the deeper region. Download