华南扬子陆块成冰纪冰川作用的启动时限及其全球对比*
蔡娟娟1, 崔晓庄2,3, 兰中伍4, 王剑2, 江卓斐2, 邓奇2, 卓皆文2, 陈风霖3, 江新胜2

Onset time and global correlation of the Cryogenian glaciations in Yangtze Block, South China
Cai Juan-Juan1, Cui Xiao-Zhuang2,3, Lan Zhong-Wu4, Wang Jian2, Jiang Zhuo-Fei2, Deng Qi2, Zhuo Jie-Wen2, Chen Feng-Lin3, Jiang Xin-Sheng2
桂北地区长安组和南沱组的典型露头照片 a—长安组含砾泥质砂岩与下伏丹洲群拱洞组顶部绢云母粉砂质板岩、变质细砂岩等呈平行不整合接触,界线上下岩性突变,发生明显跳相;b—长安组灰绿色块状含砾泥质砂岩中的滴石构造,坠石为板岩砾石,上下层理绕砾石发生弯曲变形;c—南沱组灰绿色厚层块状含砾砂 质泥岩,杂基支撑,砾石含量相对较少;d—南沱组灰绿色厚层块状含砾泥质砂岩,杂基支撑,砾石含量较照片c中明显增多