引言我国川、鄂、黔、桂诸省,广泛发育海相三叠系的碳酸盐沉积。解放前的工作,主要侧重在生物地层学方面。解放后,随着地质找矿事业的发展,其沉积特征和含矿性日益受到重视,岩相古地理研究亦列入了日程。早在五、六十年代,刘鸿允(1955)和王鸿祯(1961)就在其编制的小比例尺古地理 Introduction The carbonate sediments of the Triassic marine system are widely developed in Sichuan, Hubei, Guizhou and Guangxi provinces in China. Pre-liberation work, mainly focused on the biological stratigraphy. After the liberation, with the development of geological prospecting, the sedimentary characteristics and ore-bearing characteristics have been paid more and more attention. The research of lithofacies palaeogeography has also been included in the schedule. As early as the 1950s and 1960s, Liu Hongyun (1955) and Wang Hongzhen (1961) made small-scale paleogeography