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引言红土坡是四川西部贵金属的重要产地之一。关于该区的地层时代过去众说纷云,其沉积特征、沉积环境至今尚未有人做过研究。笔者等于1986、1987年间对该区进行系统地层剖面详细观察时,采得了具有说明地层时代意义的古生物化石,与此同时,对岩石薄片、古生物化石做了深入地研究,获得较为丰富的资料和认识,在此提供读者参考。
Introduction Red soil slope is one of the important producing areas of precious metal in western Sichuan. The stratigraphic age of the area has been talked about over the past years, and its sedimentary characteristics and sedimentary environment have not been studied yet. The author is equal to the detailed observation of the systematic stratigraphic section of the area from 1986 to 1987 and obtained the paleontological fossils with the meaning of the stratigraphic age. At the same time, he conducted in-depth research on the rock slices and paleontology fossils and obtained more abundant information and Understanding, in this provide readers reference.