Carbonate-hosted Zn-Pb deposits play an importance role in the world's supply of zinc and lead mineral resources (Leach et al., 2005, Leach et al., 2010, Mudd et al., 2017).Numerous carbonate-hosted base metal deposits are situated in the western Yangtze Block and northern margin of the Yangtze Block (Zhou et al., 2013a, Zhou et …
The ball mill is a key equipment to grind the crushed materials, which is widely used in the manufacture industries, such as cement, silicate, new building material, refractory …
Mean contents of Zn, Pb, Cu and Cd were 322.7, 386.0, 39.6 and 4.8 mg kg -1, respectively and may potentially exhibit toxicity, due to unfavorable physical and chemical soil properties, especially ...
The Caixiashan Zn-Pb deposit in the Eastern Tianshan area, Xinjiang, NW China, is a newly discovered giant Zn-Pb deposit with current reserves of 131 Mt at 3.95 % Zn + Pb (Cao et al. 2013).Although some research on the deposit has been conducted since its discovery in 2002, reliable metallogenic ages for the Caixiashan deposit have …
A total of 23 Zn-Pb orebodies have been discovered in the slate and dolostone of the Heishan Formation. These orebodies mainly occur as stratiform veins (Fig. 2 C; Fig. 3 A) that cut through the slate bedding (Fig. 4 A) or fill fractures within the host rock, occasionally forming a stockwork ore (Fig. 4 B).The dimensions of the orebodies …
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At a milling speed of 500 rpm, and BPR 12, the leaching concentrations of Pb, Cu and Zn decreased with increasing milling time as shown in Fig. 2.The leaching concentrations of Pb, Cu and Zn in untreated soil were 13.92 mg·L −1, 2.71 mg·L −1, and 114.31 mg·L −1, which were 273 times, 2.6 times, and 113 times higher than the Class …
Tectonically, the studied Fankou Zn-Pb deposit is situated in the famous SE-striking Nanling Metallogenic Belt (NMB) that is across the joints of Cathaysia and Yangtze blocks, South China (Fig. 1).Variable outcropped igneous and sedimentary rocks with wide timing spectrum and different origins record a long-living tectonic evolution of South …
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Within the SCB, the Nanling Metallogenic Belt (NMB) is best known for its world-class W-Sn-Pb-Zn polymetallic mineralization, with about 73 % of W, 85 % of Sn, 30 % of Pb, and 22 % of Zn reserves in China (Fig. 1, Wang et al., 2007).The Dafang Au-Ag-Zn-Pb deposit is situated in southern Hunan Province, the central part of NMB.
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The large Aqishan Pb-Zn deposit (1.97 Mt Pb + Zn) in the western segment of the Aqishan-Yamansu arc in eastern Tianshan on southern margin of CAOB, northwest China, is hosted mainly by volcanic rocks of the Lower Carboniferous Yamansu Formation and skarns, where skarns occur distal to an intrusion of granite porphyry.
The Fankou Zn-Pb deposit is isolated in the middle section of Nanling Metallogenic Belt (NMB) of Cathaysia Block, which comprises the united South China Block (SCB) with the Yangtze Block in Early Neoproterozoic period (Fig. 1 a; e.g., Shu et al., 2019, Shui, 1988, Zheng et al., 2017; Xu et al., 2021; Xiong et al., 2023).In the …
regardless of the ball size (Millpebs, 12 mm and 25 mm), the ore type (Cu-Mo vs Zn-Pb ore) and the feed size (below 140 μm versus above 350 μm). This can be easily …
This book is a reflection of all aspects of secondary Zn and Pb processing, including the global business trends of the metals, plant operations, fundamental developments, emerging technologies, and environmental considerations. It stands as a ready reference for the processing, engineering, and research communities concerned with the latest ...
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The Zn-Pb deposits occurring in carbonate rocks from late Ediacaran to Early Permian in Sichuan–Yunnan–Guizhou (SYG) provinces, such as Huize, Maozu and Tianbaoshan deposits, account for about 27 % of Zn and Pb production in China. Previous studies have suggested that the carbonate-hosted Zn-Pb deposits basically belong to …
1. Introduction. Sphalerite, a primary mineral carrier for zinc (Zn) and cadmium (Cd) in zinc-lead deposit, is characterized by the ability of Cd to directly substitute for Zn within the sphalerite crystal lattice (Cook et al., 2009).With the adoption of advanced technologies like MC-ICP-MS, the precision and efficiency of Zn and Cd isotope …
Wusihe Zn-Pb deposit, here we present a more detailed geo-logical, sulfur isotope and in situ Pb isotope study, together with a precise sphalerite Rb-Sr isochron, in an attempt to fur-ther clarify the sulfur and metal sources and to constrain the mineralization age as well as the ore genetic type.
1. Introduction. Mississippi Valley-type (MVT) zinc-lead (Zn-Pb) deposits are carbonate-hosted epigenetic stratabound, and their genesis is generally regarded to be linked to basinal brines (Tu, 1984; Leach and Sangster, 1993; Leach et al., 2010).MVT Zn-Pb deposits in China are mainly concentrated on the periphery (esp. the western and …
The Ayawilca deposit in Pasco, Peru, represents the most significant recent base-metal discovery in the central Andes and one of the largest undeveloped In resources globally. As of 2018, it hosts an 11.7 Mt indicated resource grading 6.9% Zn, 0.16% Pb, 15 g/t Ag, and 84 g/t In, an additional 45.0 Mt inferred resource grading 5.6% Zn, 0.23% …
The average blood Zn, Pb, and Cd levels in the mine workers largely exceeded the safe concentration for adults, while 30% of the workers were tested positive for As in blood. In vitro digestion extractions indicated that the highest bioaccessible contents of As, Cd, Pb, Ni and Zn were found for the industrial-residential and mine soils …
The present research extended investigations into the immobilization mechanism of metal ions as well as the leaching characteristics of Pb, Cu and Zn from …
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The newly discovered Nayongzhi Zn-Pb deposit (>20 Mt ores at 1.11–15.65 wt% Zn and 0.59–0.97 wt% Pb) in NW Guizhou province, South China, is hosted by late Ediacaran and early Cambrian carbonate rocks. The ore body is structurally controlled by a kilometer-scale reverse fault-anticline system and occurs as stratiform, lentiform, or …
The Pb isotopic composition of the sulfides from the Qiandongshan–Dongtangzi Pb-Zn deposit (with 206 Pb/ 204 Pb ratios of 18.06 to 18.14, the 207 Pb/ 204 Pb ratios of 15.61 to 15.71, and 208 …
Semantic Scholar extracted view of "The influence of ageing on the stabilisation of interfacial (Cu,Ni)6(Sn,Zn)5 and (Cu,Au,Ni)6Sn5 intermetallics in Pb-free Ball Grid Array (BGA) solder joints" by G. Zeng et al.
The Baiyinnuo'er deposit in northern China is located in the south section of the Great Xing'an Range, and it is the largest skarn Zn–Pb deposit in the region. Skarn and Zn–Pb orebodies mainly occur between the different units of the Permian Huanggangliang Formation, or within the contact zone between the intrusive rocks and the marble. …
Request PDF | On Jun 1, 2019, Wen-yi Yuan and others published Immobilization of Pb, Cu and Zn in contaminated soil using ball milling technique | Find, read and cite all the research you need on ...
South China is a world-famous terrane ascribed to its widespread occurrence of Mesozoic magmatism and associated W–Sn polymetallic deposits (Fig. 1 a; Mao et al., 2013, Chen et al., 2016a).According to the statistics, the South China Block (SCB) hosts >60% and ∼20% of the world's total W and Sn reserves, respectively (Li et al., 2012, …
