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对埃及南部一侧的非洲红海陆架及其海岸带进行了航磁资料解释。资料表明该陆架可分成两部分:南部为断裂洋壳,其厚度相当于大洋层2;北部陆壳显然受到与早期断裂有关的基性火山活动的影响。南部的海底扩张开始于2.2千万年以前,看来已持续了1.3千万年,它很可能是在蒸发岩盖层下发生的;现有的钻孔资料可作为佐证。北部航磁异常可说明属于原始断裂时基性岩浆与地盾岩的并置,海岸带的航磁异常很可能是由于埃及东部渐新统和早中新统众所周知的大面积基性火山活动造成的,上述火山活动也许早于现存的红海断裂发生之前。
Aeromagnetic interpretation of the African Red Sea shelf and its coastal zone on the southern side of Egypt. The data show that the shelf can be divided into two parts: the southern part is a fractured oceanic crust with a thickness corresponding to the oceanic crust 2; and the northern continental crust is obviously affected by the basic volcanic activity associated with the early faults. The expansion of the seabed in the South started 22 million years ago and appears to have lasted 13 million years and is likely to occur under the cover of evaporites; evidence from existing boreholes is evidenced. The northern aeromagnetic anomaly can be described as a juxtaposition of basic magma and ground shield rock at the time of the original fault. The magnetic anomalies in the coastal zone are likely to be caused by the widespread large-scale basic volcanic activity known as the Eocene and Early Miocene in eastern Egypt The above volcanic activity may precede the existing Red Sea fault.