i) 计算北海剖面中A和A'之间的两个标志地层(三叠纪和顶部基底)的扩展率。ii) 这些估计值之间的扩展率是如何变化的?iii) 该剖面上最主要的断层类型是什么?iv) 4-5个最大的特征边界断层占据了多少延伸部分?英文版:i) Calculate the extension along the two marker horizons in the North Sea profile (Triassic and Top Basement) between A and A’ii) How does extension vary between these estimates? iii) What type of faults are most dominant on the section? iv) How much of the extension is taken up by the 4-5 largest feature bounding faults?