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寒武、奥陶纪，在扬子陆块东南缘，发育—条横垣两千多公里的古台缘斜坡带。本文综合研究了此斜坡带的沉积类型，计有重力滑塌、滑移沉积、重力流沉积（碎屑流、浊流、颗粒流）、等深流沉积、上升流沉积、风暴流沉积以深水瘤状灰岩和生物扰动灰岩。台缘斜坡带沉积序列所反映的大地构造背景为被动大陆边缘，当时华南小洋（或海）盆为—拉伸下沉盆地。
Cambrian, Ordovician, in the southeastern margin of the Yangtze block, development - Article horizontal wall over two thousand kilometers of the ancient Taiwan edge of the ramp zone. In this paper, the sedimentary types of this slope zone are comprehensively studied, including gravitational slide, slip sediment, gravity flow sediment (debris flow, turbidity flow and particle flow), isochronal sedimentation, upwelling flow deposition and storm flow sedimentation in deep water Tumor limestone and bioturbation limestone. The geotectonic background reflected by sedimentary sequences in the marginal zone of the margin is the passive continental margin. At that time, the Xiao Yang (or sea) basin in South China was an extensional subsidence basin.