Exhumed fault scarps and drainage modification as proxies of neotectonics at the Abu Dabbab area, Eastern Desert, Egypt

摘要: Abstract The basement rocks, Neogene sediments and Quaternary alluvial deposits in the Abu Dabbab area, Eastern Desert of Egypt, are deformed by N-S, NE-SW, NW-SE E-W trending faults. Complex cross-cutting relationships show a complicated history initiation reactivation these recent fault scarps demonstrate different morphologies, modes formation relative ages. Recurrent, step successively reactivated faulting was likely responsible for exhumation neo-formation scarps. Capture, deep incision, offset reversal flow direction streams main drainage modifications induced active concealed faults associated with high density anomalies. Segmentation phenomenon is common all trends. Microearthquakes concentrated at intersection zones caused upper crustal strike-slip, oblique-slip, reverse normal paleostresses not consistent present-day st...