Using of Polynomial and THD Methods to the Depth Map of Shurau Formation Obtained from 2D Seismic Interpretation to Structural Map Construction in Ismail Region, Northern Iraq
The 2D seismic data were analyzed and interpreted in Isamil region in northwestern Arbil Governorate, northern Iraq. The structural and tectonic situation of the region was constructed through the study of Shurau Formation (Oligocene). The polynomial analytical method applied to the depth map of the Shurau Formation produced two maps these are regional trend map of the formation in addition to the residual structural map. The Total Horizontal Derivative method application supports the identification of the lineaments of possible faults and tectonic boundaries in the study area. The final structural map indicates that the regional trend of the study area is toward the ENE direction. The local structural features (Anticlines, Synclines, and Faults) found mostly trending NW-SE coincide with the main trend in the folded zone. This study shows the importance of using the polynomial and the Total Horizontal Derivative methods in the interpretation of the depth map of formation obtained from seismic data.