关键词: 扬子克拉通, 南华纪—早古生代, 构造—沉积旋回, 志留纪原型盆地

Abstract:

nfluenced by the Wilson cycle of plate evolution, the tectonicsedimentary cycle of the Yangtze craton from Nanhuaan to the Early Palaeozoic was divided into five stages, iea balanced adjustment stage during Sinian, an extension stage during Cambrian, a convergence stage during the EarlyMiddle Ordovician, a collision stage during the MiddleLate Ordovician, and a fresh balanced adjustment stage during Silurian. The Middle Caledonian Movement occurring at the Late Ordovician was the strongest orogenic movement during Caledonian epoch, and the Late Caledonian Movement occurring at the Late Silurian was an epeirogenic uplift movement. Correspondingly, the characteristics of Silurian prototype of the PalaeoYangtze craton was a postorogenic extensional collapse deposition, including rift basins at the edges and weakextensional basins at the interior of the craton.

Key words: Palaeo Yangtze craton, Nanhuaan to the Early Palaeozoic, tectonic-sedimentary cycle, Silurian prototype basin