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Morro de Ouro的金矿在1722年已停止开采,而近年来许多矿业开发公司重新调查了这个矿床。因为它品位特别低(0.65g/t),而全部放弃。到了1980年PTZ公司获得一个有利的性质,继而发现:品位的一致陛,吨位之大和有利于冶金等,足以抵消品位低所决定的条件。1985年开始建矿,而今天Morro de Ouro被列为世界上品位最低而最成功的一个金矿。 Morro de Ouro是巴西米纳斯吉拉斯Paracatn郊区一个小镇,在巴西利亚东南230km丘陵地带。南美Pio Paracatu Mineracao公司是被RIZ矿业公司占有51％股份的子公司,而巴
The gold mine at Morro de Ouro has been out of mining in 1722 and many mining development companies have re-investigated the deposit in recent years. Because of its very low grade (0.65g / t), and all give up. By 1980, PTZ acquired a favorable nature and found out that the consistent quality, the large tonnage and the favorable metallurgy were enough to offset the low grade. Construction began in 1985 and today Morro de Ouro ranks as one of the lowest and most successful gold mine in the world. Morro de Ouro is a small town on the outskirts of Paracatn, Minas Gerais, Brazil, in the hilly 230km southeast of Brasilia. South America Pio Paracatu Mineracao is a 51% owned subsidiary of RIZ Mining and Bar