| dc.description.abstract | Due to thickness of the ice on Greenland region, seismic acquisition has been difficult in the past and few details have been published. Tectono-sedimentary evolution of NE Greenland basin is still not fully understood. A new high-resolution 2D seismic data is provided by TGS for this thesis, gives us a new insight into structural and sedimentary evolution of the Danmarkshavn Ridge and adjacent basins on the NE Greenland shelf. The basinward basin, Thetis basin, contain magmatic intrusions. However, the landward basin, Danmarkshavn Basin, is magma-poor and the seismic data is not disrupted as in the Thetis Basin. The results of the thesis work clearly state that the NE Greenland margin is affected by transtensional shear and supports previous published details. Based on sequence and facies analysis, the thesis constructs a model for the evolution of the NE Greenland basin. The extension of the basin lasted from Devonian to Cretaceous period, and high-angle normal faults trending W-E and NE-SW. The salt intrusion and exhumed mantle deformation had major impact on the faults. Shear zones are deciphered based on seismic facies analysis. Observed interlayer salts are postulated to be Permian in age, similar of their conjugate margins. The younger sediments have been influenced glacial age and their erosional processes. | |