| 1. | It is pointed out that there exist abundant precambrian mineral resources in china , forming numerous large - superlarge iron , copper , lead , zinc , nickel , gold , ree , manganese , graphite , magnesite , talc , boron , phosphorus , pyrite , rutile and vermiculite deposits
指出中国前寒武纪蕴藏著丰富的矿产资源，形成了众多的铁、铜、铅锌、镍、金、稀土、锰、石墨、菱镁矿、滑石、硼、磷、硫铁矿、金红石、蛭石等大型超大型矿床。 |
