Ten sites (310 samples) from alkali syenite at East El Oweinat 23.2¿N, 29.5 ¿E) yield a stable mean direction of magnetization D=340.3, I=19.9 with α95=12.1, K=13.4, N=10 after alternating field cleaning resulting in a pole at 67.8 ¿N. 268.8 ¿E with A95=8.6¿. This pole position agrees with the other Upper Cretaceous pole positions of Africa. From seven sites (82 samples) from Upper Cretaceous Nubian sandstone at East El Oweinat a mean direction D=349.9, I=27.1 with α95=10.1, K=37.8 (mixed polarity) was obtained after thermal demagnetization. Combined with previous investigations on Nubian sandstone at other localities (Schult et. al., 1978, 1981), this yields a pole at 80.8 ¿N, 238.9 ¿E with A95=3.2, K=435.9, N=30. Five sites from Tertiary basalt yield a mean direction D=12.4, I=23.9 and α95=9.2, K=46.6 after alternating field cleaning which yield a paleopole position at 74.1 ¿N, 159.8 ¿E with A95=6.0, K=107.8, N=5. The paleopole positions of East El Oweinant rocks confirms the apparent polar wander path of Africa established in previous papers (Hussain et al., 1980; Schult et al., 1981). More comparisons with rotated South American and Australian pole positions after proper reconstructions to Africa show agreements with the present results. |