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
湘西北渫水河组与皖南地区休宁组上部的冻融构造 a—湘西北石门杨家坪剖面渫水河组中部发育冻融构造;b—湘西北石门杨家坪剖面渫水河组中下部发育的冻融构造;c—皖南蓝田剖面休宁组发育的冻融构造;d—皖南蓝田剖面休宁组发育的冻融构造,上下两层界面凹凸不平,发育液化成因的火焰构造与砂球砂枕构造(F1); e—皖南蓝田剖面休宁组发育的冻融构造,紫红色凝灰质砂岩粉砂岩中发育冻融水流动、渗透引起的斑块状(F2、F3)与条带构造(F4)