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独山附近泥盆一石炭系界线地层,包括汤粑沟组(底部),革老河组、者王组和尧梭组(上部)。其中前三个地层单位历来被归入石炭系,后者属于泥盆系。它们分布于县城东郊的白虎坡、五里桥及城南尧梭(村)至岩关(村)一带。本文以野外观察结合白虎坡剖面的碳酸盐薄片研究(剖面D/C界线层厚122米,取碳酸盐薄片样26件),对独山附近D/C界线层岩石类型和沉积相试作初步探讨。在野外和室内工作期间承蒙吴祥和、李德明工程师及尹宝生、谢建华等同志协助,谨以致谢。 一、主要岩石类型
Devonian-Carboniferous boundary strata near Dushan, including Tanggougou Formation (bottom), Ge Laohe Formation, Zengwang Formation and Yaooseu Formation (upper part). The first three strata have always been classified as Carboniferous, which belong to the Devonian. They are distributed in Baihupo, Wuliqiao and Chengnan Yaooseu (village) to Yan Guan (village) in the eastern outskirts of the county. Based on the field observation and the study of the carbonate sheet of Baihupo section (the D / C boundary layer has a thickness of 122 meters and the carbonate sheet sample of 26), this paper studied the lithology and sedimentary facies of the D / C boundary layer near Dushan, For a preliminary discussion. During the field and indoor work courtesy of Wu Xianghe, Li Deming engineers and Yin Baosheng, Xie Jianhua and other comrades assistance, would like to thank. First, the main rock type