Phases of evolution of the Post-rift of the Galicia Margin. Evidence from the Galicia 3D reflection seismic survey
Tesi Sanjurjo, Mari Anna
Sawyer, Dale S
Master of Science
Understanding the evolution of the Galicia Margin and magma-poor rifted margins in general have been done by studying different perspectives and disciplines. This study focuses on analyzing the interplay of three crucial components that hold the record of the margin’s history: stratigraphy, depositional environments and structural setting. We renewed the seismic stratigraphic framework of the Galicia Margin by interpreting and correlating depositional sequences using the Galicia 3D reflection seismic survey; and combine it with the existing knowledge of the structural, depositional environment and sedimentary disciplines. By studying the interplay, we found evidence on the seismic to redefine the post-rift and include phases of the evolution (breakup, post-breakup and margin maturation) that had not been discussed before and that are part of the margin’s history.
seismic interpretation; seismic stratigraphy; magma-poor rifted margins