A KEY STUDY FOR SEISMIC REFLECTION APPLICATION; GEOLOGICAL INTERPRETATION OF THE COALIFEROUS NEOGENE SEQUENCE IN AFŞİN-ELBİSTAN

Abstract

High-resolution shallow seismic reflection profiles were collected along three lines in Afþin-Elbistan basin, lignite-bearing sequence. Two of these lines are east to west oriented whereas the other is north to south. Collected data were processed first in MTA, then in TPAO and the 2D Seismic Lines were obtained. Stratigraphical and sedimentological data were correlated using well-log data located along the seismic lines. Afterwards, the information was tied to the seismic lines and the contents of the seismic reflection packages were interpreted. High amplitude reflection surface between 300 and 400 msec was described as the bottom of the Neogene-aged coal-bearing sequence. Other reflections between this bottom reflection and the surface were identified as different sedimentary units correlating to the well-log data due to their internal structures and different reflection patterns. This experimental study revealed that high resolution seismic reflection studies would provide useful geophysical data to interpret the coal-bearing sequences in Neogene aged coal-bearing basins. It is proved that high-resolution seismic reflection lines are the most useful geophysical data for stratigraphy and geological interpretation in sedimentary basins.