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在近年通用的四川龙门山泥盆系分类表中,养马坝组的下伏地层为谢家湾组,并将养马坝组与谢家湾组,分别和广西象州地区的应堂组、四排组对比。事实上,四川龙门山区原养马坝组,不仅包含相当广西象州地区应堂组的地层,而且还包含了该地区四排组上部的一段地层,故谢家湾组与四排组并不完全相当。为了便于对比和研究华南下、中泥盆统
In the general classification table of the Longmenshan Devonian in Sichuan Province in recent years, the underlying strata of the YM-Mab Formation are the Xiejiawan Formation, and the Yanyutang Formation of the Yanmaba Formation and the Xiejiawan Formation, respectively, Four rows of contrast. In fact, the original Maba group in Longmen Mountain of Sichuan not only contains the strata corresponding to Yingtang Formation in Xiangzhou of Guangxi, but also contains a section of the upper part of the fourth row of the area. Therefore, the Xiejiawan Formation and the fourth-row formation do not Quite exactly. In order to facilitate comparison and study of the South China, the Middle Devonian