The world's lead-zinc mineral resources: Scarcity, data, issues and opportunities

2017 ◽  
Vol 80 ◽  
pp. 1160-1190 ◽  
Author(s):  
Gavin M. Mudd ◽  
Simon M. Jowitt ◽  
Timothy T. Werner
Keyword(s):  
2020 ◽  
Vol 2020 ◽  
pp. 1-16
Author(s):  
Qian Zhang ◽  
Shuming Wen ◽  
Qicheng Feng ◽  
Song Zhang ◽  
Wenlin Nie

Copper-lead-zinc mixed ore in Tibet, China, is a complex and refractory polymetallic ore resource; thus, ascertaining its mineralogical properties is very important for comprehensive recovery of valuable elements. In this work, the mineralogical properties of this copper-lead-zinc mixed ore have been characterized in detail following a multidisciplinary approach, including chemical, phase, x-ray diffraction (XRD), electron microprobe, and mineral liberation analyses. The results show that the raw ore contained 0.53% Cu, 1.29% Pb, and 0.54% Zn; the oxidation rates of copper, lead, and zinc were 40.21%, 79.31%, and 84.83%, respectively. The Au and Ag contents in the raw ore were 0.28 g/t and 23.6 g/t, which can be comprehensively utilized along with the recovery of copper, lead, and zinc. The gangue mainly contained SiO2, CaO, and Al2O3. Copper in the raw ore mainly existed in bornite, duftite, chalcopyrite, and chrysocolla; lead mainly existed in cerussite, duftite, and galena; zinc mainly existed in willemite, hemimorphite, and sphalerite. The complexity in the embedding and wrapping relationships, fine-grained dissemination, high oxidation, and considerable differences in the floatability of various minerals result in difficulties in recovering the target minerals using a single method. Based on the systematic mineralogical properties obtained, an integrated technology of “bulk flotation-oxidation roasting-hydrometallurgy” has been proposed to enrich and separate copper, lead, and zinc in the ore, providing new ideas for the comprehensive and efficient utilization of polymetallic mineral resources in Tibet.


2013 ◽  
Vol 868 ◽  
pp. 117-120
Author(s):  
Long Jian ◽  
Jian Guo Gao ◽  
Yan Dao

The Sichuan-Yunnan-Guizhou border region is one part of energy sources, and is the regions with most abundant petroleum mineral resources. This paper presents ore characteristics, the characteristics of the associations of primary minerals and gangues, concluding association between Lead-zinc ore and element combination in ore occurrences in Pb-Zn deposits, which summarize common element in Lead-zinc ore of Pb, Zn, Cu, Ag, Cd, Ge, As, Sb, Hg, Bi, Sn, Mn, Ba and so on.


1987 ◽  
Vol 6 (2) ◽  
pp. 159-177
Author(s):  
V. Passmore ◽  
R. Towner

The Canning Basin in northern Western Australia is a large, relatively remote, mainly desert-covered Phanerozoic basin covering 595 000 sq km. Aborigines probably first entered the basin area 30-40 000 years ago, but the main European expeditions were not until the nineteenth and twentieth centuries. Geological exploration in the basin has been largely devoted to the discovery and exploitation of natural resources, primarily oil. Earliest geological traverses were conducted by geologists of the Geological Survey of Western Australia (GSWA). The accidental discovery of traces of oil in a water well in 1919 in the northern part of the basin diverted exploration to assessment of sediments and structures for petroleum potential. The earliest phase of oil exploration was a pioneering phase, concentrating on surface mapping and surface delineated structures as drilling sites, that was dominated by the Freney Kimberley Oil Company. West Australia Petroleum Ltd became the most active oil exploration company in the 1950s, 1960s and 1970s, using geophysics as an exploration tool in petroleum search in the basin. The late 1970s and 1980s saw an influx of companies and the application of diverse scientific approaches to the oil search. Persistence was rewarded in 1981 and 1982 with the discovery of the Blina and Sundown fields, small commercial oil accumulations. Commonwealth Government involvement in exploration was initially in the form of financial aid to exploring companies or commissioning specialist consultants for special studies. In the 1940s and 1950s and again in the 1970s the Bureau of Mineral Resources carried out basin-wide regional geological mapping in conjunction with the GSWA; onshore and offshore geophysical surveys were conducted until the 1970s. Exploration has revealed exploitable resources in the basin besides oil - diamonds, lead-zinc, coal, salt, phosphate, uranium, and heavy minerals. Only lead-zinc has present economic viability.


2013 ◽  
Vol 734-737 ◽  
pp. 993-1000
Author(s):  
Xiao Qing Chen ◽  
Jin Zhong Yang ◽  
Yi Lin Mao ◽  
Wei Ping Yan

The detailed research and analysis of ore properties was conducted on a certain unutilizable lead-zinc mixed ore in Yunnan, China, and in view of the ore properties, the sulfide ore and oxidized ore were graded, separated and enriched respectively, correspondingly, zinc concentrate, lead-zinc concentrate and lead oxide concentrate were produced, in addition, associated silver mineral was enriched in lead-zinc concentrate and lead oxide concentrate. On the basis of mineral separation technology study of polymetallic ore, the complex and inseparable lead-zinc ore and its associated mineral resources were recovered and utilized comprehensively.


1996 ◽  
Vol 14 ◽  
Author(s):  
M. A. Mirza

Before independence only a few mineral commodities were mined in Pakistan. But at present, the Geological Survey of Pakistan has identified favourable areas of mineralization of aluminium, chromium, copper, lead, zinc, gold, silver, iron, platinum and tungsten. Similarly, very large deposits of industrial minerals such as gypsum, anhydride, limestone, dolomite, building stones, rock salt, silica sand, barite, fuller's earth, industrial clays and soap stone and medium sized resources of magnesite, china clay, and bentonite occur in the country. Recent discovery of over 175 billion tonnes of good quality lignite in the Thar coal field has put Pakistan into 11th position in the world among the countries with large coal deposits. After exploitation of these resources Pakistan would be an important mineral producer in near future. This paper briefly presents the overview of mineral resources of Pakistan and also describes the status of metallic and non-metallic minerals.


1994 ◽  
Vol 160 ◽  
pp. 22-27
Author(s):  
P.R Dawes

The production of minerals has been an important industry in Greenland. With a life-span of over 100 years the cryolite deposit at Ivittuut (Fig. 1) assured Greenland a place in world mining annals. Cryolite extraction ceased in 1987. A more recent venture, the Black Angel lead-zinc mine at Maarmorilik, focused international attention on the potential for base metals and with a production from 1973 to 1990 contributed notably to the development of Greenland's economy. With the Black Angel's closure, Greenland is left for the first time this century without an operative mine. Consequently the promotion of Greenland's mineral resources has now become a foremost political objective.


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