华南寒武系武陵统的沉积分布，由西北往东南，依次为碳酸盐台地、碳酸盐台地边缘、上斜坡、下斜坡、盆地，水体逐渐变深，沉积相带近于北东—南西向展布。研究样品来自华南的鄂西、湘中和湘南—赣南三个区域。岩样中微量元素和稀土元素的地球化学特征分析表明，华南武陵世整体为海相贫氧—厌氧环境，鄂西地区局部为氧化环境。湘南—赣南地区水体深度可能局部变浅，反映了华南地区东南侧可能存在古陆。研究区武陵统的物源相对稳定，主要来自西北方，为上地壳物质，物源区构造背景可能为大陆岛弧或活动大陆边缘。%Cambrian Wulingian Series is distributed widely in South China, which shows southeastward deepening marine sedimentary environments that are carbonate platform, carbonate platform edge, upper slope, lower slope and basin in sequence in NE-SW zonal distribution. Rock samples are selected from western Hubei, central Hunan, and southern Hunan-southern Jiangxi areas. The geochemical characteristics of trace elements and REE in samples indicates that the whole South China was in an oxygen-poor to anaerobic marine environ ment but an oxidic environment locally in western Hubei during Wulingian Epoch. Water was perhaps shallower in depth in southern Hunan-southern Jiangxi area than that in the central Hunan area, which means possible existence of an ancient land in the southeast of South China. It is implied that the sediment provenance was derived sta bly from the upper crust in the northwest and the provenance area probably is under the tectonic setting of continental island arc or the active continental margin.
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