The Rammelsberg massive sulphide Cu-Zn-Pb-Ba-Deposit, Germany: an example of sediment-hosted, massive sulphide mineralisation

Large, D.; Walcher, E.

doi:10.1007/s001260050218

Cited by 51 publications

(29 citation statements)

References 25 publications

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“…It was also a period when numerous VMS-and SEDEX-type deposits formed globally, including many giant and super giant deposits ( Fig. 19; Large and Walcher, 1999;Nesbitt et al, 1999;Barrie et al, 2002;Morelli et al, 2004). It has been suggested that this global pulse of massive sulfide mineralization may have been related to global anoxia (Goodfellow, 1987).…”

Section: Regional Implicationsmentioning

confidence: 99%

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Petrology and U-Pb Geochronology of Footwall Porphyritic Rhyolites from the Wolverine Volcanogenic Massive Sulfide Deposit, Yukon, Canada: Implications for the Genesis of Massive Sulfide Deposits in Continental Margin Environments

Piercey¹,

Peter²,

Mortensen³

et al. 2008

Economic Geology

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Porphyritic rhyolite sills form an important component of the footwall of the Wolverine volcanogenic massive sulfide (VMS) deposit, Yukon, Canada, and occur proximal to mineralization in the immediate deposit area (Wolverine/Lynx zone) and at similar stratigraphic levels along strike (Fisher, Puck, and Sable zones). Porphyritic rhyolites are of two types: an older quartz-feldspar porphyritic (QFP) rhyolite suite; and a younger feldspar porphyritic (FP) suite. Both the QFP and FP suites of intrusions are semiconcordant, suggesting a silllike morphology, and are altered and crosscut by veinlet mineralization, suggesting that they are pre-to synmineralization. The margins of QFP suite of intrusions contain minor xenoliths of surrounding shales and poorly developed chilled margins suggesting emplacement into partially consolidated sedimentary rocks, whereas the FP suite of intrusions shows well-developed chilled margins indicative of emplacement into fully solidified sedimentary rock. These features suggest that the QFP suite of intrusions represents an older phase of rhyolitic magmatism, whereas the FP suite represents a younger event. This is supported by U-Pb zircon ages, which indicate a 352.4 ± 1.5 Ma emplacement age for the FP suite and a ~347 to 346 Ma emplacement for the FP suite (two ages at 347.8 ± 1.3 and 346.0 ± 2.2 Ma). Both suites of porphyries have inherited Proterozoic zircon and have ratios of La/SmUCN~1 and Nb/ThUCN~1 (UCN -upper continental crust normalized), indicating derivation from and/or extensive interaction with ancient upper continental crustal materials. The FP suite, however, has elevated high field strength element (HFSE) and rare earth element (REE) contents, high zircon saturation temperatures, and higher Nb/Ta ratios and lower Ti/Sc ratios than the QFP suite. These features are interpreted to reflect that the FP suite of magmas was hotter (>900°C) melts with a greater mantle component in their genesis. Both suites, however, are interpreted to have formed due to basaltic upwelling, crustal melting, and crust-mantle mixing during ensialic back-arc basin activity. The presence of mantle heat within the Wolverine basin from ~352 to ~347 to 346 Ma, a minimum of 5 m.y., suggests that sustained mantle heat flow was critical to the genesis of the Wolverine porphyries. It is also suggested that this sustained mantle heat was responsible for the Wolverine hydrothermal system and that upwelling mantle may be essential in providing the heat to drive hydrothermal systems even in continental margin-type VMS environments (e.g., Bathurst, Iberian pyrite belt).The Wolverine porphyries are among the most HFSE-and REE-enriched felsic rocks associated with VMS mineralization globally. The high HFSE and REE concentrations in these rocks are interpreted to be due to

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Section: Regional Implicationsmentioning

confidence: 99%

“…Age data for Red Dog are from Morelli et al (2004). Data for Rammselberg and Meggen deposits are from Large and Walcher (1999) and references therein. Age data for the Iberian pyrite belt are from Nesbitt et al (1999) and Barrie et al (2002).…”

Section: Implications Of Ages For the Tectonic Setting And Timing Of mentioning

confidence: 99%

Petrology and U-Pb Geochronology of Footwall Porphyritic Rhyolites from the Wolverine Volcanogenic Massive Sulfide Deposit, Yukon, Canada: Implications for the Genesis of Massive Sulfide Deposits in Continental Margin Environments

Piercey¹,

Peter²,

Mortensen³

et al. 2008

Economic Geology

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“…In this study, the Pb isotopic composition was measured using ICP-MS ELAN DRC II, PerkinElmer, equipped with LSX-500 laser ablation system, CETAC. The NIST NBS 981 Pb was applied to correct for instrumental mass bias [5,[7][8][9][10][11].…”

Section: Experimental Methodsmentioning

confidence: 99%

The origin and chronology of medieval silver coins based on the analysis of chemical composition

et al. 2015

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Medieval Central Europe coins - the Saxon coins, also called as the Otto and Adelheid denarii, as well as the Polish ones, the Władysław Herman and Bolesław Śmiały coins - were examined to determine their provenance and dating. Their attribution and chronology often constitute a serious problem for historians and numismatists. For hundreds of years, coins were in uncontrolled conditions and in variable environment. Destructed and inhomogeneous surface were the effect of corrosion processes. Electron microscopy with energy dispersive X-ray analysis (scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDS)), X-ray fluorescence (XRF) analysis (energy dispersive X-ray fluorescence (EDXRF) and total reflection X-ray fluorescence (TXRF)), and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) were applied. The results of these investigations are significant for our knowledge of the history of Central European coinage, especially of Polish coinage

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“…In deposits in China (Ishihara et al 2008;2011) basinal brines, comparisons may also be made with feeder zones beneath sedimentary exhalative parageneses at, for example, Rammelsberg, Germany (Large and Walcher, 1999) and Långban, Sweden (Burke and Kieft 1980). We consider that the differences in parageneses between these areas and SW England relate primarily to differences in the composition and properties of the host, as well as different source melting and crystallisation histories.…”

Section: Provincesmentioning

confidence: 99%

Indium mineralisation in SW England: Host parageneses and mineralogical relations

Stickland

Rollinson

Shail

2016

Ore Geology Reviews

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The Rammelsberg massive sulphide Cu-Zn-Pb-Ba-Deposit, Germany: an example of sediment-hosted, massive sulphide mineralisation

Cited by 51 publications

References 25 publications

Petrology and U-Pb Geochronology of Footwall Porphyritic Rhyolites from the Wolverine Volcanogenic Massive Sulfide Deposit, Yukon, Canada: Implications for the Genesis of Massive Sulfide Deposits in Continental Margin Environments

Petrology and U-Pb Geochronology of Footwall Porphyritic Rhyolites from the Wolverine Volcanogenic Massive Sulfide Deposit, Yukon, Canada: Implications for the Genesis of Massive Sulfide Deposits in Continental Margin Environments

The origin and chronology of medieval silver coins based on the analysis of chemical composition

Indium mineralisation in SW England: Host parageneses and mineralogical relations

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