河南宜阳下三叠统刘家沟组微生物成因沉积构造演化及其对古环境变化的响应*
邢智峰1,2, 周虎1, 林佳1, 王敏1,2, 郑伟1,2

Evolution of Microbially Induced Sedimentary Structures and their response to palaeoenvironment variation of the Lower Triassic Liujiagou Formation in Yiyang area,Henan Province
Xing Zhi-Feng1,2, Zhou Hu1, Lin Jia1, Wang Min1,2, Zheng Wei1,2
河南宜阳地区下三叠统刘家沟组隆脊构造组合 a—隆脊构造组合发育层位(25~43 m);b—瘤状突起,呈圆拱状,未连结成脊,高1~2 mm;c—簇状突起,尖脊高2~3 mm;d—网状生长脊,脊高3~4 mm;e—放射状隆脊和瘤状突起,被黑色虚线框住的部分为隆脊的聚集部位,条形虚线为向其聚集的脊,瘤状突起分布在右下区域;f—砂火山和逃逸构造,黑色框中为砂火山构造的放大图,黑色虚线是典型的气体逃逸构造