川中东北部中—下侏罗统湖相碳酸盐岩碳氧同位素特征及其古环境意义

张葳¹, 李智武¹, 冯逢², 翟中华², 孙玮¹, 汤聪¹, 丁一¹, 刘树根¹

Carbon and oxygen isotopic composition of lacustrine carbonate rocks of the Lower-Middle Jurassic in NE part of central Sichuan Province and their palaeoenvironmental significance

Zhang Wei¹, Li Zhiwu¹, Feng Feng², Zhai Zhonghua², Sun Wei¹, Tang Cong¹, Ding Yi¹, Liu Shugen¹

显微照片显示川中东北部中—下侏罗统保存很好的轮藻(A)和腹足类(B)化石 A—粉砂质泥质灰岩,见保存完整的轮藻化石,大安寨段,3198.8 m,平昌1井,单偏光,×10;B—泥晶介壳灰岩,含腹足类化石,东岳庙段,3128.2 m,平昌1井,单偏光,×4