Extensional hard linkages, eastern Gulf of Suez, Egypt

Complex rift geometries resulting from inheritance of pre-existing structures: Insights and regional implications from the Barmer Basin rift

“…13). Such a scenario has been described previously, both experimentally (Bellahsen and Daniel, 2005;Henza et al, 2010Henza et al, , 2011 and in nature (McClay and Khalil, 1998;Lezzar et al, 2002;Younes and McClay, 2002;Bellahsen et al, 2006;Whipp et al, 2014). However, the structural geometries and characteristics described here are not in accordance with a model of passive inheritance of a discrete, rift-oblique, preexisting fault that transferred extension directly between offset rift margin fault systems (Fig.…”

The Red Sea and Gulf of Aden Basins

“…The resulting zigzag pattern of faulting (Fig. 8b) is a fundamental attribute of the northern Red Sea and Gulf of Suez (El Tarabili and Adawy, 1972;Garfunkel and Bartov, 1977;Jarrige et al, 1986;Patton et al, 1994;Bosworth et al, 1998;McClay and Khalil, 1998). On a larger scale, N-S kinks in the N30°W trend of the Nubia Red Sea margin occur at about 15°N, 18°N, and 22°N (Fig.…”

“…Lithologies consist of highly foliated granitic gneisses, metasediments, Neoproterozoic calc-alkaline volcanic flows and pyroclastic rocks, Neoproterozoic ophiolites, and several phases of syn-kinematic to post-kinematic granitic intrusions (Greenwood et al, 1976;Hadley and Schmidt, 1980;Stern, 1981;Greenberg, 1981;Stacey and Hedge, 1984). Regional basement fabrics are dominated by N-and NW-trending PanAfrican foliations in the basement gneisses, pervasive NE-to ENE-trending vertical to sub-vertical mafic to andesitic post-Pan-African (latest Neoproterozoic to Early Cambrian) dikes, N-S fracture zones that dextrally offset some of the granitic intrusions, and WNW-to NW-trending basement shear zones that are part of the Najd fault system of the Arabian craton (Brown and Jackson, 1960;Moore, 1979;Stern et al, 1984;Stern, 1985;Stoeser and Camp, 1985;Abdelsalam and Stern, 1996;Younes and McClay, 1998;McClay and Khalil, 1998).…”

Preliminary seismicity and focal mechanisms in the southern Gulf of Suez: August 1994 through December 1997

“…These rocks were deformed and metamorphosed during the Pan African tectono-magnetic orogeny which terminated about 550 Ma. The basement of southern part of the Gulf of Suez exhibits a number of strong Pre-rift fabrics including N and NW trending Pan African foliations in the basement gneisses, pervasive NE to ENE trending vertical to sub-vertical mafic to andesitic post-Pan African to early Cambrian dikes, N-S fracture zone that offset some of the granitic intrusions, and NW trending basement shear zones (McClay and Khalil, 1998;McClay and Bosworth, 2001). The pre-existing Precambrian to early Cambrian fabrics was reactivated during the late Cenozoic rifting of the Gulf of Suez (El Tarabili and Awady, 1972;Patton et al, 1994;Younes et al, 1998).…”