中三叠世是中国南方沉积盆地从海相沉积向陆相沉积转变的重要时期,因此阐明该期的地层结构和沉积古地理分异对于揭示该区域构造和地质发展历史是相当重要的.本文将中国南方划分为四个沉积区:东南沉积区、下扬子沉积区、上扬子沉积区及右江沉积区.同时对各沉积区序列、岩相生物群的分布和分异进行了总结.
Key words Liulin, Shanxi, China; Middle Triassic; Ermaying Formation; therocephalians [gap=18244]关键词：山西柳林，中三叠世，二马营组，兽头类
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中三叠世的沉积混杂作用形成于台内断裂塌陷；
The Middle Triassic melange sedimentation is formed by the fault collapse in the platform.
川西地区中三叠世雷口坡期位于威西蒸发海盆的西南部。
The area of western Sichuan was situated in the southwestern part of an evaporative sea basin (Weixi area) during Leikoupo age in middle Triassic.
表明中晚三叠世鄂尔多斯盆地已经结束早中三叠世近海湖泊的性质。
These evidences prove that the Early and Middle Triassic paralic and lacustrine features had already been inactive in the Middle and Late Triassic Ordos basin.
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