新疆塔里木盆地塔中地区塔中822井上奥陶统的层孔虫化石及其造礁特征  

UPPER ORDOVICIAN STROMATOPOROIDS AND REEF CHARACTERISTICS FROM WELL 822 IN THE TAZHONG AREA OF THE TARIM BASIN,XINJIANG,CHINA

作　　者：杨海军[1] 姜红霞[2] 肖中尧[1] 吴亚生[2] 杨芝林[1] 刘丽静[2] 

机构地区：[1]中国石油天然气股份有限公司塔里木油田分公司勘探开发研究院,库尔勒841000 [2]中国科学院地质与地球物理研究所,北京100029

出　　处：《微体古生物学报》2012年第4期370-378,共9页Acta Micropalaeontologica Sinica

基　　金：青年科学基金(编号:40802001)项目资助成果

摘　　要：塔里木盆地奥陶系的礁滩相地层产出非常丰富的古生物化石,本文研究了塔中地区塔中822井的上奥陶统地层的层孔虫化石,共发现层孔虫2目6属8种,包括一新种,主要有厚柱层孔虫(Pachyst ylostroma)、囊层孔虫(Cystistroma)、拉贝希层孔虫(Labechia)、罗森层孔虫(Rosenella)、蜂巢层孔虫(Ecclimadictyon)和网格层孔虫(Clathrodictyon)。这些不同属种的层孔虫分别呈层状、皮壳状或块状、球状产出,形成层孔虫绑结岩和骨架岩,是生物礁的主要造架生物。Abundant Ordovician fossils are found from the reef-and beeche-beds in the Tarim Basin. This paper des- cribes the upper Ordovician stromatoporoids of Well 822 in the Tazhong area of the Tarim Basin. They include 9 spe- cies referred to 7 genera as Pachystylostroma, Cystistrorna, Labechia, Rosenella, Argostroma, Ecclimadictyon and Clathrodictyon. All these stromatoporoids show as stratiform, crusty, crumb or spheral shapes in the rocks. They formed bound stone and frame stone, and are the main organisms of the reef.

关 键 词：层孔虫 生物礁 上奥陶统 塔中 塔里木盆地 新疆 

分 类 号：Q915.2[天文地球—古生物学与地层学] P534.42[生物学—古生物学]