中非铜钴成矿带地质特征及铜钴矿床资源量分析

中非铜钴成矿带是世界最大的沉积型铜钴成矿带、全球最大钴矿、第三大铜矿发现区。因铜钴价格持续走高和中资企业持续关注的迫切性，本文对中非铜钴成矿带地质特征、铜钴矿床资源分布规律、权益资源量情况进行分析研究。同时，系统收集研究区学术研究成果、商业数据库、企业年报等数据，分析认为Lufilian弧形构造带是中非铜钴成矿带构造背景，从北向南依次为弧外部褶皱推覆带、穹窿地区、复式向斜带、加丹加高原。地层分为孔德龙古、恩古巴、罗安三个群，地层年龄自<573±5 Ma至879±16 Ma。含矿层位主要是罗安群矿床组，下分R2.1、R2.2、R2.3三个含矿层。矿床类型主要为碳酸盐质巨型角砾岩型、含矿页岩型、含矿砂岩型、含矿基底型铜矿，构成6个铜钴矿集区，具有等间距分布特征，间距为±20 km。截至2021年，研究区探获铜资源量1.91亿t,钴资源量1404万t。以当量铜资源量排序，>100万t的矿床33个，>1000万t级别的矿床7个。共有14个国家55家矿业企业参与铜钴成矿带勘探及开发。我国权益铜钴资源量分别为6467万t、648万t。大于50万t权益铜资源量的企业有洛阳钼业、紫金...

Geological characteristics and copper-cobalt resources of the Central Africa copper-cobalt metallogenic belt

The Central African Copper-Cobalt Metallogenic Belt is the world''s biggest sedimentary copper-cobalt metallogenic belt, the world''s largest cobalt deposit, and the third greatest discovery area for copper deposits. Because copper and cobalt prices are rising and there is an urgent need for Chinese enterprises to pay attention, this work analyzed and studied the geological characteristics of the Central African Copper-Cobalt Metallogenic Belt, the distribution law of copper and cobalt deposit resources, and the amount of equity resources. Meantime, we compiled data in a methodical manner, such as academic research findings, commercial databases, and corporate annual reports. The tectonic background of the central African copper-cobalt metallogenic belt, according to the research, is the Lufilian arc-shaped structural belt. It is separated into the outer arc fold nappe belt, the dome area, the compound syncline zone, and the Katanga Plateau from north to south. The strata are classified as Kundelungu, Nguba, and Roan groups, with the ages spaning from < 573 ± 5 to 879 ± 16 Ma. The ore-bearing horizon is mainly the Roan Group Mines Formation, which is divided into R2.1, R2.2, and R2.3 ore-bearing horizons. The deposit types include mostly Carbonate giant breccia, ore-bearing shale, ore-bearing sandstone, and ore-bearing basement copper deposits, which comprise six copper-cobalt ore concentration zones with equidistant distribution characteristics separated by 20 km. By 2021, the study area had discovered 191 million tons of copper and 14.04 million tons of cobalt.According to the order of equivalent copper resources, there are 33 deposits more than one million tons and seven deposits greater than ten million tons. The discovery and development of the copper-cobalt metallogenic belt has involved 55 mining companies from 14 countries. China has 64.67 million tons of equity copper and 6.48 million tons of equity cobalt resources. Ten companies have more than 500,000 tons of equity copper resources, including COMC, Zijin Mining, and CNMC. Also, ten companies have more than 20,000 tons of equity cobalt resources, including COMC, CATL and CNMC.