Characteristics of Cd isotopic compositions and their genetic significance in the lead-zinc deposits of SW China

Zhu, Chen; Wen, Hao; Zhang, Yuxu; Fan, Haifeng; Fu, Shaohong; Xu, Juan; Qin, TingRong

doi:10.1007/s11430-013-4668-4

Cited by 54 publications

(47 citation statements)

References 18 publications

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“…Three replicates were prepared. The Cd fractions were separated from the matrix utilizing three anionic exchange chromatographic procedures adopted from the studies of Cloquet et al, 23 Gao et al 31 and Zhu et al, 24 which were termed as Procedure 1, Procedure 2 and Procedure 3, respectively. Each eluate (2 mL) was dried and redissolved by 2 mL of 2% HNO3 before the elements concentrations were measured by inductively coupled plasma mass spectrometry (ICP-MS) (Elan DRC-e, Perkin Elmer, USA).…”

Section: Anion-exchange Purification Proceduresmentioning

confidence: 99%

“…As mentioned in the introduction, the purification procedures of the solids samples mainly include Wombacher et al, 28 Cloquet et al, 23 Gao et al 31 and Zhu et al 24 up to our experiement. Wombacher et al 28 proposed a two-stage column chemistry procedure and used three types acid (i.e.…”

Section: Different Purification Proceduresmentioning

confidence: 99%

“…HCl). Overall, the three procedures of Cloquet, 23 Gao 31 and Zhu 24 were relatively simple compared with the procedure of Wombacher.…”

Section: Different Purification Proceduresmentioning

confidence: 99%

“…As a rule, Cd recovery is required to be above 95% when sample standard bracketing (SSB) is used to correct the instrumental mass fractionation. 20,23,24 In addition, accurate measurements of the Cd isotope ratios are influenced by the isobaric interferences (i.e. 106 sufficiently from the samples.…”

Section: Introductionmentioning

confidence: 99%

“…Cloquet et al 23 developed a one-stage purification procedure to separate Cd from soil samples using HCl and a macroreticular strong base anion exchanger (AG-MP-1 resin) resulting in a Cd recovery higher than 95%. Based on the procedures of Cloquet et al 23 and Gao et al, 31 Zhu et al 24 exchanged the added 0.06 mol L -1 HCl by 0.012 mol L -1 HCl leading to Cd yields of up to 99.82%.…”

Section: Introductionmentioning

confidence: 99%

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Chromatographic Separation of Cd from Plants via Anion-Exchange Resin for an Isotope Determination by Multiple Collector ICP-MS

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Section: Anion-exchange Purification Proceduresmentioning

confidence: 99%

Section: Different Purification Proceduresmentioning

confidence: 99%

“…HCl). Overall, the three procedures of Cloquet, 23 Gao 31 and Zhu 24 were relatively simple compared with the procedure of Wombacher.…”

Section: Different Purification Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Chromatographic Separation of Cd from Plants via Anion-Exchange Resin for an Isotope Determination by Multiple Collector ICP-MS

et al. 2017

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The Cd isotope composition of atmospheric aerosols from the Tropical Atlantic Ocean

Bridgestock

Rehkämper

Flierdt

et al. 2017

Geophysical Research Letters

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Stable isotope compositions can potentially be used to trace atmospheric Cd inputs to the surface ocean and anthropogenic Cd emissions to the atmosphere. Both of these applications may provide valuable insights into the effects of anthropogenic activities on the cycling of Cd in the environment. However, a lack of constraints for the Cd isotope compositions of atmospheric aerosols is currently hindering such studies. Here we present stable Cd isotope data for aerosols collected over the Tropical Atlantic Ocean. The samples feature variable proportions of mineral dust‐derived and anthropogenic Cd, yet exhibit similar isotope compositions, thus negating the distinction of these Cd sources by using isotopic signatures in this region. Isotopic variability between these two atmospheric Cd sources may be identified in other areas, and thus warrants further investigation. Regardless, these data provide important initial constraints on the isotope composition of atmospheric Cd inputs to the ocean.

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Genesis of greenockite (CdS) and associated sulphide‐gold mineralization from Mahakoshal belt, Central Indian Tectonic Zone

et al. 2023

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The Zn‐Cd‐S critical minerals system is a significant mineralogical indicator of hydrothermal ore‐forming processes. The understanding of greenockite (CdS) formation in natural mineral systems is very restricted due to low crustal abundances (Cd <0.2 ppm). We report the first occurrence of greenockite from the Bagada orogenic gold prospect, Paleoproterozoic Mahakoshal belt, Central Indian Tectonic Zone (CITZ). This provides an ideal opportunity to access the occurrence and its genesis. Greenockite occurs in discrete sheared quartz veins hosted in phyllites. Sulphide mineralization is closely associated with hydrothermal chlorite alterations. Pyrrhotite, arsenopyrite, pyrite, and chalcopyrite assemblages are formed at high temperatures, while sphalerite and galena precipitated when the temperature decreased. Greenockite, native silver and bismuth with gold precipitated during the breakdown of arsenopyrite to scorodite in progressively oxidizing conditions. Greenockite precipitation occurred in a transforming hydrothermal environment from a reducing to an oxidizing one during late‐stage hydrothermal alteration. Sphalerite and chlorite thermometry yielded temperatures in the range from 266 to 366°C for this late‐stage hydrothermal alteration. Textural relations show two modes of occurrence of greenockite, one (Gck‐1) as exsolution within sphalerite (Sp‐2) and the other (Gck‐2) occurring as a discontinuous rim replacing the Cd‐rich sphalerite (Sp‐3). The Gck‐1 contains high Zn and low Cd, while as compared to Gck‐2. Zinc and Cd in greenockite show diadochy relation (Zn2+ ↔ Cd2+). Laser ablation ICPMS analyses of sphalerite (Sp‐2) reveal remarkably high Cd contents (1.9–12 wt%). Cd >0.02 ppm suggests possible Cd derivation from sphalerite (Sp‐2) under variable fS2, T, pH, fO2 conditions, fluid–rock interaction, and change in the Zn/Cd ratio. Sphalerite compositions display a low Zn/Cd (av.22) ratio and high temperature of formation, with characteristics intermediate between volcanogenic massive sulphides (VMS) and magmatic‐hydrothermal Cu‐Pb‐Zn system.

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Characteristics of Cd isotopic compositions and their genetic significance in the lead-zinc deposits of SW China

Cited by 54 publications

References 18 publications

Chromatographic Separation of Cd from Plants via Anion-Exchange Resin for an Isotope Determination by Multiple Collector ICP-MS

Chromatographic Separation of Cd from Plants via Anion-Exchange Resin for an Isotope Determination by Multiple Collector ICP-MS

The Cd isotope composition of atmospheric aerosols from the Tropical Atlantic Ocean

Genesis of greenockite (CdS) and associated sulphide‐gold mineralization from Mahakoshal belt, Central Indian Tectonic Zone

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