Metallogeny and environmental impact of Hg in Zn deposits in China

Yin, Runsheng; Feng, Xinbin; Li, Zhonggen; Zhang, Qian; Bi, Xian‐Wu; Li, Guanghui; Liu, Jinling; Zhu, Junjiang; Wang, Jianxu

doi:10.1016/j.apgeochem.2011.09.027

Cited by 23 publications

(22 citation statements)

References 35 publications

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“…Streets et al (2005) reported that mercury concentration in Chinese zinc concentrates varied from less than 1 g t −1 to more than 1000 g t −1 . Yin et al (2012) pointed out that such a wide range depended on the ore types and their geneses. Data about mercury concentration in Chinese lead and copper concentrates are scarce.…”

Section: Introductionmentioning

confidence: 99%

Update of mercury emissions from China's primary zinc, lead and copper smelters, 2000–2010

Zhang

Song

et al. 2012

Atmos. Chem. Phys.

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Abstract. China is the largest anthropogenic mercury emitter in the world, where primary nonferrous metal smelting is regarded as one of the most significant emission sources. In this study, atmospheric mercury emissions from primary zinc, lead and copper smelters in China between 2000–2010 were estimated using a technology-based methodology with comprehensive consideration of mercury concentration in concentrates, smelting processes, mercury removal efficiencies of air pollution control devices (APCDs) and the application percentage of a certain type of APCD combinations. Our study indicated that atmospheric mercury emissions from nonferrous metal smelters in 2000, 2003, 2005, 2007 and 2010 were 67.6, 100.1, 86.7, 80.6 and 72.5 t, respectively. In 2010, the amounts of mercury emitted into atmosphere were 39.4 ± 31.5, 30.6 ± 29.1, and 2.5 ± 1.1 t from primary zinc, lead and copper smelters, respectively. The largest amount of mercury was emitted from the Gansu province, followed by Henan, Yunnan, Hunan, Inner Mongolia and Shaanxi provinces. Hg2+, Hg0 and Hgp emissions from zinc smelters were 25.6, 11.8 and 1.97 t, respectively. The emissions percentages of Hg2+ and Hg0 were almost the same from lead and copper smelters. The average mercury removal efficiency was 90.5 ± 52.5%, 71.2 ± 63.7% and 91.8 ± 40.7% in zinc, lead, and copper smelters, respectively.

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Section: Introductionmentioning

confidence: 99%

Update of mercury emissions from China's primary zinc, lead and copper smelters, 2000–2010

Zhang

Song

et al. 2012

Atmos. Chem. Phys.

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“…cinnabar (HgS), sphalerite (ZnS), etc] 25 . Both Hg and zinc (Zn) belong to the IIB group in the element periodic table, and Hg has a close geochemical relationship with Zn 26 . The presence of anomalous concentrations of Hg have been observed in sphalerites 22 25 26 27 , the most abundant form of Zn in hydrothermal deposits 28 29 30 31 .…”

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confidence: 99%

“…Both Hg and zinc (Zn) belong to the IIB group in the element periodic table, and Hg has a close geochemical relationship with Zn 26 . The presence of anomalous concentrations of Hg have been observed in sphalerites 22 25 26 27 , the most abundant form of Zn in hydrothermal deposits 28 29 30 31 . Extraction of Zn from sphalerites has received broad concerns due to the fact that Zn smelting is regarded as one of the largest anthropogenic Hg emission sources to the atmosphere 26 32 33 .…”

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confidence: 99%

Mercury Isotopes as Proxies to Identify Sources and Environmental Impacts of Mercury in Sphalerites

Yin

Feng

Hurley

et al. 2016

Sci Rep

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During the past few years, evidence of mass independent fractionation (MIF) for mercury (Hg) isotopes have been reported in the Earth’s surface reservoirs, mainly assumed to be formed during photochemical processes. However, the magnitude of Hg-MIF in interior pools of the crust is largely unknown. Here, we reported significant variation in Hg-MIF signature (Δ199Hg: −0.24 ~ + 0.18‰) in sphalerites collected from 102 zinc (Zn) deposits in China, indicating that Hg-MIF can be recorded into the Earth’s crust during geological recycling of crustal material. Changing magnitudes of Hg-MIF signals were observed in Zn deposits with different formations, evidence that Hg isotopes (especially Hg-MIF) can be a useful tracer to identify sources (syngenetic and epigenetic) of Hg in mineral deposits. The average isotopic composition in studied sphalerites (δ202Hgaverage: −0.58‰; Δ199Hgaverage: +0.03‰) may be used to fingerprint Zn smelting activities, one of the largest global Hg emission sources.

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“…Eastern China was in an active continental margin tectonic setting related to the westward subduction of the Pacific Ocean Plate from the Late Mesozoic to Cenozoic (W. Li et al, , W. Li et al, ; Maruyama, Isozaki, Kimura, & Terabayash, ). A regional extension along the eastern China continental margin occurred due to the rollback of subducted oceanic slab in the Late Mesozoic–Cenozoic, which resulted in the formation of many NE‐trending extensional basins along the eastern China continental margin (Meng, Hu, Jin, Zhang, & Xu, ; Ren, Tamaki, Li, & Junxia, ; Yin et al, ). Later, eastern China became a transitional continental margin related to the direction changing of the Pacific Ocean Plate subduction (Maruyama et al, ; Maruyama & Send, ), which resulted in a series of NE‐rending strike‐slip faults and pull‐apart basins in the Cenozoic (Ge, Ren, Liu, & Yuan, ; Gu et al, ; Z. J. Ma, Gao, & Song, ).…”

Section: Tectonics Of Eastern Chinamentioning

confidence: 99%