扬子西南缘滇中成冰系南沱组沉积特征及其上红层归属讨论*
祁柯宁1,2, 旷红伟1, 柳永清1, 彭楠1, 王玉冲1,3, 陈骁帅1

Sedimentary characteristics of the Cryogenian Nantuo Formation and stratigraphic attribution of red beds in central Yunnan, southwestern margin of Yangtze Craton
QI Kening1,2, KUANG Hongwei1, LIU Yongqing1, PENG Nan1, WANG Yuchong1,3, CHEN Xiaoshuai1
滇中澄江飞大田村剖面南沱组柱状图和典型冰川特征照片 a1、a2—南沱组下段砾岩和上段泥岩—粉砂岩; b1、b2—子弹状砾石以及砾石表面擦痕和撞击坑; c—砾石定向排列; d—镜下特征见坠落状碎屑颗粒; e—含粉砂泥岩,发育粒序纹层; f—粉砂质泥岩,发育纹层以及风化残余孔洞