Building a structural image in the Elward area in the Syrian Euphrates Graben using 3D seismic data

What is it about?

By generating fault maps, isochron maps, and applying restoration techniques to 3D seismic data acquired over the Elward area of Syria, we have built a suite of cross sections that represent the tectonic evolution of the area. Fault maps and time structure maps reveal structural deformation, whereas isochron maps define areas of fault-controlled depocenters. Seismic attributes delineate fluvial channels formed during the Late Triassic period. The main rift phase in the study area is the Upper Cretaceous (Coniacian). Our analysis explained the absence of the Judea and the upper part of the Rutbah Formations from the stratigraphic column of the Elward north field.

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Why is it important?

The structural image in the Elward area was built us-ing 3D seismic data. The maps and the cross sections helped to explain the main phase of rifting in the study area. It occurred during the Base Upper Cretaceous and coincided with erosion, extensive faulting, and differen-tial subsidence. As a consequence, the Judea Formation and the upper part of the RU Formation were eroded completely in the Elward north field area. The erosion processes also resulted in the regional BKU, which formed the upper limit of the Lower RU Formation in the study area.The possible reef trap and the VRS attribute map in-dicated the calm tectonic period, which dominated the study area during the Upper Triassic.

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