论文部分内容阅读
1.地质资源现状 我国的铅资源储量较为丰富,已查明铅的产地有730多处,已探明的保有金属储量为3570万吨,居世界前列。矿产遍及全国31个省市,其中铅储量大于200万吨的矿区主要分布在云南、广东、内蒙、江西、湖南、四川、甘肃等地区,占全国储量的66％;大中型矿床占铅储量的72％,其中大型矿床有:云南兰坪、广东凡口、甘肃厂坝、内蒙白音诺尔、青海锡铁山、四川白玉和会东等;主要矿石类型有:硫化铅锌矿、氧化铅锌矿、硫化铅矿及混合铅锌矿。铅锌品位平均为4％,铅锌比为1:2.5,普遍为锌高铅低。在我国铅资源中伴(共)生的有价元素达50种,主要有:锌、铜、银、金、锡、镉、铋、镓、钢、锗、
1. Status of Geological Resources China has abundant lead resources and has identified more than 730 sites of lead. The proven reserves of retained metals are 35.7 million tons, ranking the highest in the world. The mineral resources cover 31 provinces and cities in the country. The mining areas with more than 2 million tons of lead are mainly distributed in Yunnan, Guangdong, Inner Mongolia, Jiangxi, Hunan, Sichuan and Gansu provinces, accounting for 66% of the national reserves. Large- 72%. Among them, the major deposits include Lanping in Yunnan Province, Fankou in Guangdong, Dam in Gansu, Baiyinuoer in Inner Mongolia, Xitiaoshan in Qinghai Province, Baiyu and Huidong in Sichuan Province. The main ore types include lead and zinc sulfide, lead and zinc oxide Mine, lead sulfide ore and mixed lead-zinc mine. Lead and zinc grade average 4%, lead-zinc ratio of 1: 2.5, generally low zinc high lead. There are 50 kinds of valuable elements in our country’s lead resources, including zinc, copper, silver, gold, tin, cadmium, bismuth, gallium, steel, germanium,