3.10.basement and unmetamorphosed terrigenous shallow carbonate rock in the Austria Alps -South Alps obduc-tion nappe and radiolarian silicalite in fault basins.
4.The styles of the detachment structure are short antiform and synform structure mainly, and dome structure, nappe outlier and nappe tectonic window too.
5.The project department monitors and controls the whole process of breakwater enrockment costruction by field observing instruments buried in sand soft nappe.
6.The central nappe zone is divided into seven nappes, which have an appearance of horizontal scaly imbrication and vertical thruSt overlap,and thus form a seometric model of scaly imbrication.