黔中是著名的开阳式磷块岩矿床的主要产地,有着悠久的研究历史。我们在前人工作的基础上,较系统地对贵州中部陡山沱时期的含磷地层和磷块岩进行了研究,取得了较显著的进展,兹简介如后: 第一,在黔中地区,陡山沱时期含磷地层——洋水组中,采集了丰富的磷质叠层石, Qianzhong is the major origin of the Kaiyang-type phosphorite deposit and has a long history of research. Based on the work of our predecessors, we systematically studied the phosphorus-bearing strata and phosphorite in the Doushantuo Period in central Guizhou and made some remarkable progress. First of all, in the middle of the Qianzhong region In the Doushantuo period, the phosphorus-bearing strata-ocean water group collected a large amount of phosphinite strata,