华南晚二叠世长兴期主要有碳酸盐岩和硅质岩两种岩相,关于前者,认为是大陆架内的台地和斜坡相沉积,对此几乎没有争议;关于后者,历来存在南辕北辙,意见相反,或避而不谈的处置,争议颇多。总体而论,一说认为,架外洋盆(多海山)或边缘海环境控制下的深水、特深水盆地沉积;另一说却认为是,架内局限海的近滨(瀉湖)、闭塞环境(与开阔海沟通不畅)的浅、静水沉积组合。笔者支持后一观点。主要依据是:1)处于古特提斯东部的华南块体,尽管最后闭合和成陆是在印支末期,而经历石炭纪和早、中二叠世,即海西—印支构造阶段早中期的多旋回造山作用,华南地表古地理格局已进入陆表海沉积时期,包括苏皖直至中南秦岭的川陕地区、湘黔地区 There are two lithofacies of carbonate rocks and siliceous rocks in the Changxing Period of the Late Permian in South China. Regarding the former, it is considered that there is almost no dispute about the deposition of platform and slope within the continental shelf. There is always a contradiction between the latter and the other, Opinions are the opposite, or to avoid talking about the disposal, a lot of controversy. On the whole, one said that the deposition of deep-water and ultra-deep-water basins under the control of the extra-oceanic oceanic basin (sea seamounts) or the marginal sea environment, and the other said that the near-shore (lagoons) Poor communication with open sea) shallow, hydrostatic sedimentary assemblage. The author supports the latter point of view. Mainly based on: 1) South China block in the eastern part of the ancient Tethys, although the last closure and formation of the land was in the end of Indosinian, and experienced Carboniferous and Early, Middle Permian, that is, the Hercynian-Indosinian tectonic stage In the medium-term polycyclic orogeny, the surface pattern of the South China surface has entered the period of land surface seafloor deposition, including the areas of Sichuan and Shaanxi, Jiangsu and Anhui provinces until Qinnan Mountains, the Hunan-Guizhou region