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甘肃张掖白垩纪早Aptian期黑色页岩揭示的气候岁差驱动及其意义*
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谢琴1,2, 陈家胜1,2, 刘晓静1,2, 刘秀铭1,2,3 |
Detection of climatic precession variability of black shale in the early Aptian of Cretaceous in Zhangye of Gansu Province and its significance
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Xie Qin 1,2, Chen Jia-Sheng 1,2, Liu Xiao-Jing 1,2, Liu Xiu-Ming 1,2,3
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甘肃张掖南台子下沟组黑色页岩段Google Earth图和野外实景照片 a—研究区及邻近地区的地理图,浅蓝色虚线代表河西走廊位置,红色五角星代表研究区位置(修改自 Liu et al ., 2017 );b—张掖南台子彩色丘陵与下沟组黑色页岩段的Google Earth图,实际采样点坐标:38°57'N,99°59'E;c—b图中巨厚黑色页岩地层实景;d—冰沟剖面黑色页岩实景,Ⅱ段为研究层位 |
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