川中地区茅口组一段沉积相新认识

田小彬, 师江波, 董景海, 谭万仓, 印长海, 李强, 宋振宇, 张凯, 肖传桃

New understanding of sedimentary facies of the first Member of Maokou Formation based on the latest drilling in central Sichuan Basin

Xiaobin TIAN, Jiangbo SHI, Jinghai DONG, Wancang TAN, Changhai YIN, Qiang LI, Zhenyu SONG, Kai ZHANG, Chuantao XIAO

表1 眼球灰岩、眼皮灰岩中主量元素、微量元素含量

Table 1 Contents of major and trace elements in eyeball-shaped limestone and eyelid-shaped limestone

含量 眼球灰岩 眼皮灰岩 最小值 最大值 平均值 最小值 最大值 平均值 主量元素/% Al2O3 0.045 1.64 0.38 0.05 1.40 0.42 MgO 1.11 24.31 5.58 1.12 12.28 5.35 CaO 9.54 54.46 43.74 20.71 54.34 42.47 微量元素/（μg/g） V 4.03 180.58 37.28 5.53 156.87 51.70 Ni 0.62 18.30 5.27 1.06 15.67 6.77 Sr 384.88 3 103.92 1 555.94 519.48 3 464.12 1 577.56 Ba 6.65 329.32 60.04 10.13 228.33 42.89