Mineralogy and trace-element geochemistry of sulfide minerals in hydrothermal chimneys from the Upper-Cretaceous VMS deposits of the eastern Pontide orogenic belt (NE Turkey)

Revan, Mustafa Kemal; Genç, Yurdal; Масленников, В. В.; Масленникова, С. П.; Large, Ross R.; Danyushevsky, Leonid V.

doi:10.1016/j.oregeorev.2014.05.006

Cited by 145 publications

(75 citation statements)

References 46 publications

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“…The mineralogy of the chimney samples is summarized in Table 1. The trace-element geochemistry and mineralogy of the chimneys used in this study was discussed by Revan et al (2014). The sulfide mineralogy of the Pontide vent chimneys is highly consistent with results obtained from mound and stockwork zones of VMS deposits (e.g., Çiftçi, 2000;Çiftçi et al, 2004;Revan, 2010).…”

Section: General Characteristics Of the Pontide Vent Chimneyssupporting

confidence: 80%

“…Nearly all known VMS deposits in the eastern Pontide belt are hosted by the Kızılkaya formation and are commonly located at the contact between felsic volcanic rocks and an overlying polymodal sequence containing various proportions of volcanic and sedimentary facies (Revan, 2010;Revan et al, 2014). The zircon U-Pb dating of the Kızılkaya formation that hosts VMS deposits has yielded a date of 91 ± 1.3 Ma (Eyuboglu et al, 2014).…”

Section: Geologic Setting and Characteristics Of The Eastern Pontide mentioning

confidence: 99%

“…The sulfides within the inner zone (zone B) consist predominantly of chalcopyrite with lesser amounts of pyrite and sphalerite. The axial conduit (zone C) is commonly filled by barite gangue and pyrite, with minor amounts of fahlore, sphalerite, chalcopyrite, galena, and quartz (Revan et al, 2014). Pyrite is the principal sulfide mineral within the chimney zones, followed by sphalerite and chalcopyrite.…”

Section: General Characteristics Of the Pontide Vent Chimneysmentioning

confidence: 99%

“…Hydrothermal vent chimneys can be easily recognized in modern seas due to their unique shape and location; however, it is difficult to detect their presence in ancient deposits due to modifications such as diagenesis followed by deformation and metamorphism (Revan et al, 2014). Relatively well-preserved metalbearing fossil hydrothermal chimneys are quite rare and limited to a few districts.…”

Section: Introductionmentioning

confidence: 99%

“…These features of the eastern Pontide VMS deposits may be useful for global comparison. The vent chimneys reported in this belt (Maslennikov et al, 2009;Revan, 2010;Revan et al, 2013Revan et al, , 2014 may thus offer an ideal opportunity for a detailed sulfur isotope study of an ancient seafloor VMS hydrothermal system. Sulfur isotope studies provide valuable information on the source of sulfur and may help explain enigmatic variations of sulfur isotope values in VMS deposits.…”

Section: Introductionmentioning

confidence: 99%

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Sulfur isotope study of vent chimneys from Upper Cretaceous volcanogenic massive sulfide deposits of the eastern Pontide metallogenic belt, NE Turkey

Revan¹,

Масленников²,

Genç³

et al. 2016

Turkish J Earth Sci

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We obtained sulfur isotope analysis results of sulfide samples from hydrothermal vent chimneys of the eastern Pontide volcanogenic massive sulfide (VMS) deposits. The total range of δ 34 S values for vent chimneys in the eastern Pontide VMS deposits is -2.7 to 6.5 per mil. Sulfide δ 34 S values show narrow variation in the Lahanos, Killik, and Kutlular deposits, but wider variation in the Kızılkaya and Çayeli deposits. The δ 34 S values of sulfides in Çayeli chimney samples gave a slightly higher range than the other Pontide chimney samples. In some samples, a rough isotopic zonation pattern was observed throughout chimney zones. Variations in δ 34 S values of sulfides within chimney walls were probably caused by chemical reactions of reprecipitation and replacement between vent fluids and earlier sulfide minerals in the chimney. Ranges of δ 34 S values of sulfide minerals are similar for different deposits within the same region. Variations in the δ 34 S values of the Pontide deposits appear to be geographic rather than stratigraphic. The sulfur isotope values of the deposits have a narrow compositional range, indicative of a fairly specific origin. Although "deep-seated" sulfur may be a potential source in the Pontide district, a significant contribution of seawater sulfate cannot be ruled out. The δ 34 S values of selected samples from Pontide vent chimneys are within the range of sulfur values obtained from Phanerozoic VMS deposits. The range is similar to, but slightly broader than, the range of values reported for modern vent chimneys and ancient vent chimneys from the Yaman-Kasy deposit.

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Section: General Characteristics Of the Pontide Vent Chimneyssupporting

confidence: 80%

Section: Geologic Setting and Characteristics Of The Eastern Pontide mentioning

confidence: 99%

Section: General Characteristics Of the Pontide Vent Chimneysmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Sulfur isotope study of vent chimneys from Upper Cretaceous volcanogenic massive sulfide deposits of the eastern Pontide metallogenic belt, NE Turkey

Revan¹,

Масленников²,

Genç³

et al. 2016

Turkish J Earth Sci

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Late Cretaceous hydrothermal vent communities from the Troodos ophiolite, Cyprus: systematics and evolutionary significance

Kaim

Little

Kennedy

et al. 2021

Papers in Palaeontology

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Modern hydrothermal vent communities are based on chemosynthesis by microbial primary producers. Molecular phylogenetic divergence estimates indicate that many of the dominant vent taxa arose during the Cenozoic and Cretaceous; however, the fossil record of vent communities from these time periods is poor. One occurrence of such Cretaceous vent communities pertains to six volcanogenic massive sulphide deposits in the Troodos ophiolite of Cyprus. These deposits represent hydrothermal activity on deep (2500-5000 m) arc-related spreading ridge(s) in the Neotethyan Ocean over several million years during the late Cenomanian and earliest Turonian. The Cyprus vent communities consist of worm tubes, representing possible vestimentiferans and serpulids, together with a moderate diversity of abyssochrysoid gastropods, belonging to eight new species (Desbruyeresia kinousaensis sp. nov., Desbruyeresia memiensis sp. nov., Desbruyeresia kambiaensis sp. nov., Hokkaidoconcha morisseaui sp. nov., Ascheria canni sp. nov., Cyprioconcha robertsoni gen. et sp. nov., Paskentana xenophontosi sp. nov. and Paskentana dixoni sp. nov.) in five genera and three families; none of the species is shared between vent sites. A single gaudryceratid ammonite from one of the vent sites most likely represents a water-logged shell that sank from surface waters. The gastropod fauna contains the first representatives of the genera Desbruyeresia, Hokkaidoconcha, Ascheria and Paskentana from hydrothermal vents, and also the youngest representative of the last-named genus in any environment. The Cypriot vent communities share tube worms with slightly older (Cenomanian) and younger (Turonian-Santonian) vent communities elsewhere in the western part of the Neotethyan Ocean.

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Volcanogenic Massive Sulfide (VMS) Deposits of Turkey

Çiftçi

2019

Modern Approaches in Solid Earth Sciences

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Mineralogy and trace-element geochemistry of sulfide minerals in hydrothermal chimneys from the Upper-Cretaceous VMS deposits of the eastern Pontide orogenic belt (NE Turkey)

Cited by 145 publications

References 46 publications

Sulfur isotope study of vent chimneys from Upper Cretaceous volcanogenic massive sulfide deposits of the eastern Pontide metallogenic belt, NE Turkey

Sulfur isotope study of vent chimneys from Upper Cretaceous volcanogenic massive sulfide deposits of the eastern Pontide metallogenic belt, NE Turkey

Late Cretaceous hydrothermal vent communities from the Troodos ophiolite, Cyprus: systematics and evolutionary significance

Volcanogenic Massive Sulfide (VMS) Deposits of Turkey

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