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U.S. Department of Energy
Office of Scientific and Technical Information

Accommodation structures on Morgan hinge zone, Gulf of Suez, Egypt

Conference ·
OSTI ID:5924320
The Morgan hinge zone is a narrow, complex structural belt separating a province of southwest-dipping fault blocks in the southern Gulf of Suez from a northeast-dipping province in the central Gulf. The variety of accommodation structures within this zone appears to result from the intersection of oppositely dipping, low-angle extensional detachments underlying the two dip provinces. The central and southern Gulf provinces both exhibit similar gross morphologies. An array of similarly tilted fault blocks extends from one margin of the rift to close to the opposite margin, where dips of the tilt blocks decrease, then reverse, forming a broad structural arch adjacent to the border fault. This structural pattern results from extension on a low-angle master detachment having a dip opposite to that of the overlying tilt block array. Thus, the central Gulf province appears to have opened by extension on a southwest-dipping detachment, whereas the southern Gulf province opened on a northeast-dipping detachment.
OSTI ID:
5924320
Report Number(s):
CONF-880301-
Country of Publication:
United States
Language:
English