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*
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
Xie Qin1,2, Chen Jia-Sheng1,2, Liu Xiao-Jing1,2, Liu Xiu-Ming1,2,3
甘肃张掖南台子下沟组黑色页岩Ⅱ段CaCO3含量序列ASM分析 a—MTM频谱分析图。黑色曲线代表频谱功率随频率变化,蓝色虚线表示95%的置信度水平。b—零假设置信水平。红色虚线指示最优沉积速率17.074 cm/ka,黑色虚线指示的为设置信度1%的临界值。c—最优沉积速率校正后的显著地层频率(黑色虚线)与文目标频率(红色实线)的拟合