Ferruginous and manganiferous haloes around massive sulphide deposits of the Urals

Масленников, В. В.; Ayupova, N. R.; Herrington, Richard; Danyushevskiy, Leonid; Large, Ross R.

doi:10.1016/j.oregeorev.2012.03.008

Cited by 48 publications

(42 citation statements)

References 64 publications

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“…The Talgan ore bodies are interpreted as ore clastic lens with relics of a sulfide mound underlain by sericite-quartz metasomatites [39]. The relict sulfide mound is overlain by small-clastic ores and layered gossanites (ferruginous products of seafloor oxidation of massive sulfide ores) [24,26,30,39]. The slopes of the mound contain sulfide breccias with fragments of chalcopyrite-pyrite-sphalerite smoker chimneys, hydrothermal crusts, and fossilized tube worms.…”

Section: Talgan Depositmentioning

confidence: 99%

Authigenesis at the Urals Massive Sulfide Deposits: Insight from Pyrite Nodules Hosted in Ore Diagenites

et al. 2020

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The pyrite nodules from ore diagenites of the Urals massive sulfide deposits associated with various background sedimentary rocks are studied using optical and electron microscopy and LA-ICP-MS analysis. The nodules are found in sulfide–black shale, sulfide–carbonate–hyaloclastite, and sulfide–serpentinite diagenites of the Saf’yanovskoe, Talgan, and Dergamysh deposits, respectively. The nodules consist of the core made up of early diagenetic fine-crystalline (grained) pyrite and the rim (±intermediate zone) composed of late diagenetic coarse-crystalline pyrite. The nodules are replaced by authigenic sphalerite, chalcopyrite, galena, and fahlores (Saf’yanovskoe), sphalerite, chalcopyrite and galena (Talgan), and pyrrhotite and chalcopyrite (Dergamysh). They exhibit specific accessory mineral assemblages with dominant galena and fahlores, various tellurides and Co–Ni sulfoarsenides in sulfide-black shale, sulfide–hyaloclastite–carbonate, and sulfide-serpentinite diagenites, respectively. The core of nodules is enriched in trace elements in contrast to the rim. The nodules from sulfide–black shale diagenites are enriched in most trace elements due to their effective sorption by associated organic-rich sediments. The nodules from sulfide–carbonate–hyaloclastite diagenites are rich in elements sourced from seawater, hyaloclastites and copper–zinc ore clasts. The nodules from sulfide–serpentinite diagenites are rich in Co and Ni, which are typical trace elements of ultramafic rocks and primary ores from the deposit.

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Section: Talgan Depositmentioning

confidence: 99%

Authigenesis at the Urals Massive Sulfide Deposits: Insight from Pyrite Nodules Hosted in Ore Diagenites

et al. 2020

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“…Quantitative LA-ICP-MS analysis of pyrite, marcasite and chalcopyrite for major ( 65 Cu, 66 Zn) and selected trace elements ( 51 V, 55 Mn, 59 Co, 60 Ni, 65 Cu, 66 Zn, 75 As, 77 Se, 95 Mo, 107 Ag, 111 Cd, 117 Sn, 121 Sb, 125 Te, 182 W, 197 Au, 205 Tl, 208 Pb, 209 Bi, 238 U) was carried out on a New Wave 213-nm solid-state laser microprobe coupled to an Agilent 7700 quadrupole ICP-MS housed (Agilent Technologies, Santa Clara, CA, USA) at the CODES LA ICP MS analytical facility, University of Tasmania. The analyses were performed by ablating spots ranging in size from 40 to 60 µm.…”

Section: Samples and Analytical Techniquesmentioning

confidence: 99%

“…In the absence of detailed descriptions of similar nodules from oceanic hydrothermal sulfide fields, we have compared the pyrite nodule from the Semenov-3 breccias with analogues from fossil VHMS deposits (Bracemac-McLeod deposit in Canada, Lahanos deposit in Turkey, and Saf'yanovka and Yubileynoe deposits in the Urals), in which Fe disulfide nodules have been found in illite-hematite gossanites (cf. [66]), tuffites and sedimentary host rocks [18,19,65,67]. The main features of pyrite nodules in these deposits are summarized in Table 6.…”

Section: Trace Element Zoning Of the Pyrite Nodulementioning

confidence: 99%

Sulfide Breccias from the Semenov-3 Hydrothermal Field, Mid-Atlantic Ridge: Authigenic Mineral Formation and Trace Element Pattern

et al. 2018

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The aim of this paper is the investigation of the role of diagenesis in the transformation of clastic sulfide sediments such as sulfide breccias from the Semenov-3 hydrothermal field (Mid-Atlantic Ridge). The breccias are composed of marcasite–pyrite clasts enclosed in a barite–sulfide–quartz matrix. Primary hydrothermal sulfides occur as colloform, fine-crystalline, porous and radial marcasite–pyrite clasts with inclusions or individual clasts of chalcopyrite, sphalerite, pyrrhotite, bornite, barite and rock-forming minerals. Diagenetic processes are responsible for the formation of more diverse authigenic mineralization including framboidal, ovoidal and nodular pyrite, coarse-crystalline pyrite and marcasite, anhedral and reniform chalcopyrite, inclusions of HgS phase and pyrrhotite–sphalerite–chalcopyrite aggregates in coarse-crystalline pyrite, zoned bornite–chalcopyrite grains, specular and globular hematite, tabular barite and quartz. The early diagenetic ovoid pyrite is enriched in most trace elements in contrast to late diagenetic varieties. Authigenic lower-temperature chalcopyrite is depleted in trace elements relative to high-temperature hydrothermal ones. Trace elements have different modes of occurrence: Se is hosted in pyrite and chalcopyrite; Tl is related to sphalerite and galena nanoinclusions; Au is associated with galena; As in pyrite is lattice-bound, whereas in chalcopyrite it is related to tetrahedrite–tennantite nanoinclusions; Cd in pyrite is hosted in sphalerite inclusions; Cd in chalcopyrite forms its own mineral; Co and Ni are hosted in chalcopyrite.

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“…The chemical sedimentary rocks characteristically occur in proximal settings within the immediate hanging-wall rocks of the massive sulfide ores and/or distally to the sulfide ores at about the same stratigraphic level (Slack, 2012). These Si-and Fe-rich rocks are used as a guide horizon in exploring for VMS deposits since they formed close to the sulfide ores and their areal extents are much greater than those of the sulfide ores (Stanton, 1972;Franklin et al, 1981;Kalogeropoulos and Scott, 1983;Spry et al, 2000;Maslennikov et al, 2012;Slack, 2012;Hollis et al, 2015). These rocks are also characterized by significant concentrations of metals (James, 1954;Ridler, 1971;Comba, 1975;Kalogeropoulos and Scott, 1983;Spry et al, 2000;Maslennikov et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…To date, this rock class has been referred to by a variety of terms in the VMS districts where they are identified. Commonly used terms for the ancient analogues are chemical sedimentary rock, quartz-hematite rock, ferruginous chert, sulfidic chert, hematitic chert/jasper, jasperite, tuffite, ironstone, iron quartz, (meta)-exhalite, tetsusekiei, vasskis, ocher, gossanite, umber, ferruginous and manganiferous rock, hydrothermal sediment, and ore-bearing sedimentary facies (Ridler, 1971;Stanton, 1972;Kalogeropoulos and Scott, 1983;Kalogeropoulos, 1985;Duhig et al, 1992;Spry et al, 2000;Davidson et al, 2001;Slack et al, 2009;Revan, 2010;Maslennikov et al, 2012;Slack, 2012;Revan et al, 2013;Hollis et al, 2015), whereas the modern analogues have been generally termed "metalliferous sediments" and "hydrothermal iron-silica deposits" (Barrett et al, 1987;Juniper and Fouquet, 1988;Metz et al, 1988;German et al, 1993;Hekinian et al, 1993;Hein et al, 1997).…”

Section: Introductionmentioning

confidence: 99%

Mineralogy and geochemistry of metalliferous sedimentary rocks from the Upper Cretaceous VMS deposits of the Eastern Pontides (NE Turkey)

Revan¹,

Genç²,

Delibaş³

et al. 2019

Turkish J Earth Sci

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Metalliferous sedimentary rocks, despite being limited in scope, are important stratigraphic horizons within the volcanogenic massive sulfide (VMS) deposits in the Upper Cretaceous volcanic belt of the Eastern Pontides. The metalliferous sedimentary rocks compose a distinctive genetic class. The abundance of such rocks in the Eastern Pontide district provides a basis for study and description that may be more widely applied in other VMS districts. The metalliferous sedimentary rocks generally form layers less than 1.5 m thick above stratiform massive sulfide ores. The metalliferous sediments are largely composed of quartz and hematite. While the Si ± Fe content of sediments directly overlying the stratiform massive sulfide ores is high, an increase in the amount of carbonate is observed in sediments that are not directly overlying the ores. The metalliferous sedimentary rocks were formed by the mixing of mainly chemical components and to a smaller degree detrital components in various proportions due to sedimentation processes occurring on the seafloor. Of the major constituents of the metalliferous sediments, Si, Fe, Cu, Zn, Pb, Sb, and Au generally have a hydrothermal origin, whereas Al, Zr, and Ti are from detrital volcanic and volcaniclastic components. The high levels of U and V indicate a seawater origin, pointing to a submarine environment for the formation of the Eastern Pontide metalliferous sedimentary rocks. The composition of the metalliferous sediments of Eastern Pontide VMS deposits implies that these sediments carry a continental-arc provenance signature. Silica (±iron)-rich rocks in the Eastern Pontides can be used as guide horizons in exploring for volcanogenic massive sulfide deposits in the district since they formed close to the sulfide ores and their areal extents are much greater than those of the sulfide ores. In comparison with their analogues on a global scale, these rocks are broadly comparable to silica-and iron-rich sedimentary rocks in the VMS-bearing districts of the Urals.

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Ferruginous and manganiferous haloes around massive sulphide deposits of the Urals

Cited by 48 publications

References 64 publications

Authigenesis at the Urals Massive Sulfide Deposits: Insight from Pyrite Nodules Hosted in Ore Diagenites

Authigenesis at the Urals Massive Sulfide Deposits: Insight from Pyrite Nodules Hosted in Ore Diagenites

Sulfide Breccias from the Semenov-3 Hydrothermal Field, Mid-Atlantic Ridge: Authigenic Mineral Formation and Trace Element Pattern

Mineralogy and geochemistry of metalliferous sedimentary rocks from the Upper Cretaceous VMS deposits of the Eastern Pontides (NE Turkey)

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