Abstract
The Abu Durba area represents the upwarped and denudated crest of a tilted block belonging to the eastern margin of the Suez rift. Here a submeridian (N 15°) fault laterally offsets the crystalline basement crest in two distinct mountain ranges and causes the deflection of the whole sedimentary cover up to the lower Miocene strata. At its northern end this fault diverges in a oblique-dipslip fan. Each oblique slip fault has to be considered as a splay off the termination of the principal fault (i.e. Abu Durba fault). The deformation pattern along this fracture lineament suggests that strike-slip movements have taken place during Neogene times across the Suez rift.
Riassunto
Ľarea di Abu Durba rappresenta la porzione sommitale di un blocco sollevato e basculato appartenente al margine orientale del Rift di Suez. Quivi una faglia submeridiana (N 15°) provoca lo spostamento trascorrente sinistro del suddetto blocco il cui basamento cristallino viene suddiviso in due distinte dorsali montuose e nella cui dislocazione viene coinvolta anche la copertura sedimentaria fino al Miocene inferiore. In corrispondenza delľestremità settentrionale la suddetta faglia trascorrente diverge in una struttura a ventaglio suddivisa in faglie normali oblique. Ognuna di queste faglie può essere considerata come una componente della terminazione divergente della faglia principale. Ľinsieme delle deformazioni che compongono tale struttura suggeriscono che importanti movimenti trascorrenti sono avvenuti durante il Neogene trasversalmente al Rift di Suez.
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Nella seduta del 22 aprile 1989.
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Pasquarè, G., Conforto-Galli, C. & Desio, S.A. The Abu Durba Area: Strike-slip faulting across the eastern margin of the suez rift (Egypt). Rend. Fis. Acc. Lincei 1, 151–158 (1990). https://doi.org/10.1007/BF03001889
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DOI: https://doi.org/10.1007/BF03001889