摘要
济源地区中奥陶统上马家沟组发育有大量的痕迹化石，对其生态习性分析表明它们形成在低氧、静水的局限性泥质碳酸盐台地环境中。云斑状构造是早期白云石交代作用优先沿着痕迹化石Ｔｈａｌａｓｉｎｏｉｄｅｓ潜穴进行，然后向围岩扩散而形成的。
Trace fossils are abundant in Shangmajiagou Formation, Jiyuan area. Analysis on the ethology of trace fossils indicates that they are preserved in poor oxygen and quiet seawater carbonates which were deposited within a limited environment of subtidal flats. The dolomitized patches were produced by early diagenetic dolomitization which preferentially began within Thalassinoides burrows and spread into the surrounding lime mud.
出处
《焦作工学院学报》
1997年第4期51-54,共4页
Journal of Jiaozuo Institute of Technology(Natural Science)
关键词
上马家沟组
生物地层
痕迹化石
环境
中奥陶统
trace fossils
limited carbonate flats
Shangmajiagou formation
dolomitized patches
