作者于1980年8月和1981年6月先后两次在湖南道县后江桥地区进行地质调查,研究了泥盆纪佘田桥时古地理环境及与矿床成因的关系,提出了佘田桥时沉积模式和成岩作用环境模式,提出了矿床成因的新认识。在此,重点介绍对矿床成因的认识。在科研工作中,得到曾允孚、刘宝珺两位教授的认真指导和周振东老师的热情帮助,湖南省地质局409地质队也给予大力支持,在此一并表示谢意。 The authors conducted geological surveys twice in August 1980 and June 1981 respectively in the Houjiangqiao area of ​​Daoxian County in Hunan Province to study the paleogeographic environment of the Shetian Bridge in the Devonian and its relationship with the genesis of the deposit. Sedimentary model and diagenetic environmental model, put forward a new understanding of the genesis of the deposit. Here, we will focus on the understanding of the genesis of the deposit. In the scientific research work, Zeng Yunfu, Liu Baojun two professors and the guidance of the sincere guidance of Professor Zhou Zhendong enthusiasm, Hunan Geological Bureau 409 geological team also give strong support, together with the gratitude.