中国南方大地构造演化及泥盆纪古构造格局

晋宁旋回的若干古老地体经拼合形成原始华南大陆地壳;澄江旋回破裂解体;加里东旋回经多次拉张、挤压后,扬子陆块与华夏陆块拼合形成统一的华南板块;海西—印支旋回在挤压上升背景上平静拉伸张裂,最后发生大陆碰撞;燕山—喜马拉雅旋回发生拉张断陷。泥盆纪古构造格局表现为华南海西期古大陆板块及其南、西缘的被动大陆边缘。可划分出华南陆块、右江-南岭被动陆缘、南秦岭-龙门山-盐瀑、丽江被动陆缘、钦防残留海槽以及它们的次一级构造环境。

GEOTECTONIC EVOLUTION AND DEVONIAN PALAEOTECTONIC FRAMEWORK IN SOUTH CHINA

In the South China several old terranes got together and formed original South China continental crust during the Jinning Cycle. It is split and disintegrated during the Chengjiang Cycle. Yangtze and Huaxia continental blocks together formed uniform South China plate after many times tension and compression during the Caledonian Cycle. The quiet tension spread based on the compression rise and continental collision during the Hercynian-Yinzhi Cycle and later tension rift happened during the Yanshan-Himalayan Cycle. Palaeotectonic framework of Devonian displays that Hercynian old continental plate and its southern and western passive continental margin in South China can be divided as South China continental plate, Youjang-Nanling passive continental margin, south Qingling-Longmenshan-Yanyuan and Lijiang passive continental margin, Qinfang remnant trough and their subdivision structure environments.