论文部分内容阅读
系统描述了发育于广西六景、贵州独山、贵阳乌当泥盆纪3个浅海沉积区Cruziana遗迹相Chondrites的产出特征,结合华南泥盆纪其他5个浅海沉积区Cruziana遗迹相的Chondrites资料,对Chondtites的寄主岩系颜色分级、遗迹组构、潜穴直径、遗迹属种的综合研究表明,只有寄主岩系为深灰色—黑色,岩性为灰岩、泥灰岩,潜穴直径小于1 mm,无其他遗迹化石共生时,Chondrites才是贫氧环境标志性遗迹化石的新认识,而个体粗大的Chondrites常发育在常氧环境中。
This paper systematically describes the characteristics of the Cruziana trace facies Chondrites developed in three shallow marine sedimentary areas of Liujing, Guizhou, Dushan, Guiyang, and the Chondrites data of the Cruziana trace in the other five shallow marine sedimentary areas of the Devonian in South China A comprehensive study on the color grading, trace structure, latent hole diameter and trace species of the host rock of Chondtites shows that only the host rock is dark gray-black, the lithology is limestone and marl, the diameter of the hole is less than 1 mm, no other trace fossils coexist, Chondrites is a new understanding of the iconographic fossils of oxygen-depleted environment, and individual coarse Chondrites often develop in normoxic environment.