豫西荥阳陆相二叠纪—三叠纪之交的微生物成因构造(MISS)及其地质意义

郑伟¹, 齐永安^1*,^*, 张忠慧², 邢智峰¹

Characteristic and Geological Significance of Microbially Induced Sedimentary Structures(MISS) in Terrestrial P-T Boundary in Xingyang, Western He’nan Province

Zheng Wei¹, Qi Yongan^1,^*, Zhang Zhonghui², Xing Zhifeng¹

豫西荥阳地区陆相二叠纪—三叠纪之交的微生物成因构造镜下微观特征 (a)大U型脊(红色箭头所指);(b)暗色黏土矿物(SEM);(c)脊及围岩石英颗粒(红色箭头所指);(d)石英颗粒定向排列(红色箭头所指); (e)脊下石英颗粒定向排列(红色箭头所指);(f)黏土矿物广泛分布在岩石颗粒间隙;(g)脊边缘颗粒间较多的黏土矿物(红色箭头所指);(h)石英次生加大现象(绿色箭头所指)