Origin of Dipping Reflectors within the Oceanic Crust of the North Atlantic

在几个不同地区的海洋多道地震数据中，观测到了洋壳内的倾斜反射层。这些反射体通常局限于下地壳，或者在中地壳消亡，或者变平并与较强的亚水平上地壳反射体合并。少数被观察到的反射体穿过整个地壳部分。这些地壳内倾角反射体的地质意义仍然知之甚少。它们被解释为正常断层、下地壳原生岩浆分层或低角度逆冲断层。该项目将对来自大西洋三个地区的数据集进行额外的处理和解释：布莱克-支线断裂带、凯恩断裂带以南的马克地区和加那利盆地。

Dipping reflectors within the oceanic crust have been observed in marine multichannel seismic data from several different areas. These reflectors are frequently confined to the lower crust and either die out in the mid-crust or flatten out and merge with strong sub-horizontal upper crustal reflectors. A small number of obrserved reflectors cut through the entire crustal section. The geological significance of of these intra-crustal dipping reflectors is still poorly understood. They have been interpreted as normal faults, primary magmatic layering in the lower crust, or low-angle thrust faults. This project will do additional processing and interpretation on data sets from three areas in the Atlantic Ocean; the Blake-Spur fracture zone, the MARK area south of the Kane fracture zone, and the Canary basin.