Variation of Cu, Fe, S and Pb isotopes in sulfides from hydrothermal mineralization from the Yenice region in Çanakkale, Biga Peninsula, NW Turkey

Çiçek, Mustafa; Oyman, Tolga; Palmer, Martin R.

doi:10.1016/j.oregeorev.2021.104255

Cited by 12 publications

(4 citation statements)

References 106 publications

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“…The δ 34 S values of biotite diorite fall within the range of volcanic H 2 S, and the δ 34 S values of altered rocks and breccia pipes vary greatly. Therefore, the ore-forming mechanism may be related to the progressive cooling and transition of the hydrothermal fluids that were dominated by H 2 S under relatively reducing conditions [71]. Moreover, the δ 34 S values of sulfide in the Yaotou area gradually become negative with depth.…”

Section: Sulfur Sourcementioning

confidence: 99%

“…This may indicate the transition from a low-temperature phyllic alteration to a high-temperature potassic alteration. The change in the chalcopyrite δ 65 Cu value resulted in the Cu isotope fractionation between the magmatic fluid and precipitating sulfides due to variations in the pH and the cooling of magmatic-hydrothermal fluids along the fluid pathway [71]. (Data from [10] and references therein).…”

Section: Cu Isotopic Variation In Chalcopyrite and Its Implicationsmentioning

confidence: 99%

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Cu–S Isotopes of the Main Sulfides and Indicative Significance in the Qibaoshan Cu–Au Polymetallic Ore District, Wulian County, Shandong Province, North China Craton

Sun

Wang²,

Zhang

et al. 2023

Minerals

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With a focus on the Cu isotope geochemistry of chalcopyrite, this paper analyzed the Cu isotope geochemistry of the Qibaoshan crypto-explosive breccia-type Cu–Au polymetallic ore district in Wulian, Shandong Province, North China Craton (NCC). Combined with the results of the in situ sulfur isotope analysis of sulfides, a certain reference and evidence for the study of the genetic mechanism of the epithermal-porphyry Cu polymetallic metallogenic system were provided. The results of the in situ isotope analysis show that the δ34S values of the main sulfides in the Qibaoshan Cu–Au polymetallic ore district range from −6.81‰ to +3.82‰ and are likely to be attributed to the mixing of the derived mantle with the surrounding sedimentary rock assimilation. The ore-forming mechanism may be related to the progressive cooling and transition of the earliest hydrothermal fluids that were dominated by H2S under relatively reducing conditions, followed by a gradual transition from oxidation to reduction. The Cu isotopic composition of the sulfides in ores (δ65Cu = +0.169‰–+0.357‰) decreases with depth, which is likely caused by the upward transport of heavier Cu isotopes. The upper part of the crypto-explosive breccia pipe in the Qibaoshan area may be relatively more gaseous, resulting in the enrichment of δ65Cu. As the gas phase decreases and the liquid phase increases with depth, the δ65Cu value gradually decreases. This indicates the transition from a low-temperature phyllic alteration to a high-temperature K-feldspar alteration. Large, concealed pluton intrusions or orebodies may be present at a depth of the Qibaoshan area. The heavy δ65Cu characteristic is a potential indicator for tracing the fluid activity of the porphyry system and searching for Cu mines. The results provide a reference for the study of the genetic mechanisms of the epithermal-porphyry Cu polymetallic metallogenic system.

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Section: Sulfur Sourcementioning

confidence: 99%

Section: Cu Isotopic Variation In Chalcopyrite and Its Implicationsmentioning

confidence: 99%

Cu–S Isotopes of the Main Sulfides and Indicative Significance in the Qibaoshan Cu–Au Polymetallic Ore District, Wulian County, Shandong Province, North China Craton

Sun

Wang²,

Zhang

et al. 2023

Minerals

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“…This process makes many metal minerals susceptible to leaching under acidic conditions, leading to heavy metal pollution (Hartley et al, 2020; Huang et al, 2019; Zhang et al, 2020). Numerous researchers have isolated acidic bacterial strains from sulphide minerals for the bioleaching of rare and precious heavy metals (Gan et al, 2019), and have conducted analyses to ascertain the primary pollution sources in certain sulphide minerals (Kang et al, 2020), including the bioleaching of elements like lead (Ram et al, 2021), zinc, chromium, cadmium, copper and arsenic (Çiçek et al, 2021). Additionally, the approach of microbial hydrometallurgy has been developed as an extension of this research (Adamou et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Synergistic mechanism of physical chemistry and acid bacteria: Product evolution of sulphides during tunnel mining

He,

Ren,

et al. 2024

Geological Journal

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Tunnel waste constitutes a prevalent by‐product of highway construction in high‐altitude mountainous and hilly regions. Sulphide minerals exhibit a unique distribution pattern within the alpine hills. Consequently, tunnel excavation can disrupt the stability of these sulphide minerals, rendering the tunnel waste susceptible to generating secondary environmental hazards during stockpiling. This research delves into the migration and transformation dynamics of potential environmental pollutants in tunnel waste through geoenvironmental simulation techniques. Controlled variables were employed to simulate various conditions, including surface illumination, internal anaerobiosis, water content and aerobic environments. The study's findings indicate that the presence of pyrite in the waste stream primarily drives the secondary contamination of the tunnel waste. Pyrite within the slag tends to react and form sulphuric acid in the stockpile environment, thus creating an acidic milieu that exacerbates the release of existing contaminants. The emergence of an anaerobic environment and a photocatalytic system composed of Fe/Ti substances in the waste stream serves to further accelerate pollutant release. This study thoroughly investigates the primary causes of environmental pollution during the stockpiling of tunnel slag and assesses the potential environmental impact scenarios. The outcomes of this research offer substantial theoretical and empirical support for the management of slag generated during the tunnel construction process.

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“…Li et al 2018 43 reported on the Fe isotopic compositions of a suite of hydrothermal minerals (magnetite, pyrite, and chalcopyrite) and granodiorite porphyry from the giant Duolong porphyry Cu–Au deposit, central Tibet, and demonstrated that the Fe isotopic composition of chalcopyrite could be a useful diagnostic tool for distinguishing oxidized from reduced fluids in hydrothermal systems. Çiçek et al 2021 44 reported the iron, copper, sulfur and lead isotope compositions of mineralized samples from porphyry, skarn and epithermal mineralization in the Yenice region that lies to the east of the Biga Peninsula, Turkey, and demonstrated that the variation of Cu, Fe, S and Pb isotopes in sulfides from the various types of mineralization from the Yenice region provides important insights into the metal source and ore-forming fluid evolution in the area. Therefore, the Fe isotope ratio is an important indicator to trace the ore-forming source, determine metallogenic temperature, and study metallogenic system evolution.…”

Section: Introductionmentioning

confidence: 99%

Direct measurement of Fe isotope compositions in iron-dominated minerals without column chromatography using MC-ICP-MS

Chen

Bao

Yuan

et al. 2022

J. Anal. At. Spectrom.

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Variation of Cu, Fe, S and Pb isotopes in sulfides from hydrothermal mineralization from the Yenice region in Çanakkale, Biga Peninsula, NW Turkey

Cited by 12 publications

References 106 publications

Cu–S Isotopes of the Main Sulfides and Indicative Significance in the Qibaoshan Cu–Au Polymetallic Ore District, Wulian County, Shandong Province, North China Craton

Cu–S Isotopes of the Main Sulfides and Indicative Significance in the Qibaoshan Cu–Au Polymetallic Ore District, Wulian County, Shandong Province, North China Craton

Synergistic mechanism of physical chemistry and acid bacteria: Product evolution of sulphides during tunnel mining

Direct measurement of Fe isotope compositions in iron-dominated minerals without column chromatography using MC-ICP-MS

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