扬子克拉通北缘神农架南华系莲沱组寒冷气候的沉积学证据:冻融构造*
王玉冲1,2, 旷红伟2, 彭楠2, 柳永清2, 范正秀2, 夏晓旭1,2, 陈骁帅2, 郑行海1,2, 孙宇翔3

Freezing and thawing structures: An evidence of cold climate in the Neoproterozoic Liantuo Formation in Shennongjia of northern margin of Yangtze Craton
Wang Yu-Chong1,2, Kuang Hong-Wei2, Peng Nan2, Liu Yong-Qing2, Fan Zheng-Xiu2, Xia Xiao-Xu1,2, Chen Xiao-Shuai2, Zheng Hang-Hai1,2, Sun Yu-Xiang3
神农架板壁岩附近莲沱组CIA变化趋势与莲沱组底部发育的疑似冰楔 a—板壁岩附近莲沱组柱状图和CIA低—高—低的变化趋势;b—板壁岩附近莲沱组砂质砾岩角度不整合于神农架群白云岩之上;c—板壁岩附近莲沱组内发育的板状交错层理与棱角状砾石;d—c图的局部放大照片