Geology, mineralogy and stable isotope geochemistry of the Kabwe carbonate-hosted Pb–Zn deposit, Central Zambia

Kamona, A.F.; Friedrich, G.

doi:10.1016/j.oregeorev.2006.02.003

Cited by 54 publications

(60 citation statements)

References 43 publications

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“…Cd and As are frequently found with Pb (Tembo et al, 2006;Ratnaike, 2003). Moreover, Kamona and Friedrich (2007) reported that ore in Kabwe contained sphalerite (ZnS) with Cd, galena (PbS), briarite [Cu 2 (Fe,Zn)GeS 4 ], and mimetite [Pb 5 (AsO 4 ) 3 Cl]. Consequently, we believe that the source of these metals in the Kabwe area is Pb-Zn mining and smelting activity.…”

Section: CD As and Cu Pollution In Soilmentioning

confidence: 96%

Metal and metalloid contamination in roadside soil and wild rats around a Pb–Zn mine in Kabwe, Zambia

Nakayama

Ikenaka

Hamada

et al. 2011

Environmental Pollution

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Metal (Cr, Co, Cu, Zn, Cd, Pb, Ni) and metalloid (As) accumulation was studied in roadside soil and wild rat (Rattus sp.) samples from near a Pb-Zn mine (Kabwe, Zambia) and the capital city of Zambia (Lusaka). The concentrations of the seven metals and As in the soil samples and Pb in the rat tissue samples were quantified using atomic absorption spectroscopy. The concentrations of Pb, Zn, Cu, Cd, and As in Kabwe soil were much higher than benchmark values. Geographic Information System analysis indicated the source of metal pollution was mining and smelting activity. Interestingly, the area south of the mine was more highly contaminated even though the prevailing wind flow was westward. Wild rats from Kabwe had much higher tissue concentrations of Pb than those from Lusaka. Their body weight and renal Pb levels were negatively correlated, which suggests that mining activity might affect terrestrial animals in Kabwe. Capsule:The area around Kabwe, Zambia is highly polluted with metals and As. Wild rats from this area had high tissue concentrations of Pb and decreased body weight.

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Section: CD As and Cu Pollution In Soilmentioning

confidence: 96%

Metal and metalloid contamination in roadside soil and wild rats around a Pb–Zn mine in Kabwe, Zambia

Nakayama

Ikenaka

Hamada

et al. 2011

Environmental Pollution

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“…The widespread regional distribution of MVT deposits is also observed in other districts, including the Otavi Mountainland in Namibia where regional scale ore fluid migration is indicated by the presence of Pb-Zn occurrences over 2500 km 2 within stratabound breccias of the Elandshoek Formation (Kamona & Günzel, 2007) as well as in central Africa (Fig. 6) where numerous prospects are associated with a few Neoproterozoic economic deposits such as Tsumeb, Kipushi, Kabwe and Berg Aukas (Kamona & Friedrich, 2007;Kampunzu et al, 2009). Most MVT deposits are Zn-dominant as indicated by the Zn/(Zn+Pb) ratio of 0.7 in individual orebodies and districts.…”

Section: Mvt Depositsmentioning

confidence: 65%

“…Tonnage and grade data for 23 MVT deposits ( Fig. 7) from Canada (Paradis et al, 2007) and Africa (Kamona & Günzel, 2007;Kamona & Friedrich, 2007;Kampunzu et al, 2009) indicate that the average MVT deposit contains 13 Mt with grades of 7.2 wt. % Zn and 3.4 wt.…”

Section: Mvt Depositsmentioning

confidence: 99%

Carbonate-Hosted Base Metal Deposits

Kamona¹

2011

Earth and Environmental Sciences

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“…The Vazante zinc silicate deposits share many similarities with other willemite deposits [2,[42][43][44][45][46], as summarized in Table 1 of Slezak et al [8], suggesting that these deposits were formed by similar processes. The guidelines for exploration discussed below are based mainly on the attributes of the Vazante District, because it is the focus of this review and hosts the world largest The willemite ore formed in zones along major faults in the dolomite unit interbedded with siliciclastic rocks of the Serra do Poço Verde Formation during the Brasiliano orogenic event [5,6,8].…”

Section: Exploration Guidelinesmentioning

confidence: 77%

The Proterozoic Vazante Hypogene Zinc Silicate District, Minas Gerais, Brazil: A Review of the Ore System Applied to Mineral Exploration

Olivo¹,

Monteiro

Baia³

et al. 2018

Minerals

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Abstract:The Proterozoic Vazante zinc silicate district in Minas Gerais, Brazil, hosts world-class hypogene willemite deposits in dolomitic rocks interbedded with siliciclastic rocks deposited in subtidal to supratidal environments. Willemite ore bodies are structurally controlled along regional NE-trending structures which are interpreted as being active during the Neoproterozoic Brasiliano orogeny. The hydrothermal alteration is characterized by an early stage of Fe-dolomite, which replaced the host dolomitic rocks, followed by precipitation of minor sphalerite and then hematite and willemite. Elements commonly enriched in the zinc ore include As, Ba, Be, Bi, Cd, Co, Fe, Ge, In, Mo, Ni, Sb, Se, U, V and W. Mineralogical, fluid inclusion and isotopic data indicates that mixing of S-poor metalliferous saline fluids with meteoric water favored the formation of willemite ore. Carbonaceous phyllites from the underlying thick siliciclastic sequence show evidence of early enrichment in zinc (and ore-related metals) and remobilization, respectively, prior to and during the Brasiliano orogenic event. This unit is interpreted as a possible source of ore-related elements. It is proposed that during the Brasiliano orogeny, hot (T > 170 • C) saline fluids (>15 wt % eq. NaCl) leached metals from siliciclastic source rocks and precipitated willemite ore in the overlying dolomitic sequence along structures that favored mixing with oxidizing meteoric water.

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Geology, mineralogy and stable isotope geochemistry of the Kabwe carbonate-hosted Pb–Zn deposit, Central Zambia

Cited by 54 publications

References 43 publications

Metal and metalloid contamination in roadside soil and wild rats around a Pb–Zn mine in Kabwe, Zambia

Metal and metalloid contamination in roadside soil and wild rats around a Pb–Zn mine in Kabwe, Zambia

Carbonate-Hosted Base Metal Deposits

The Proterozoic Vazante Hypogene Zinc Silicate District, Minas Gerais, Brazil: A Review of the Ore System Applied to Mineral Exploration

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