Sequential evolution of Sn–Zn–In mineralization at the skarn-hosted Hämmerlein deposit, Erzgebirge, Germany, from fluid inclusions in ore and gangue minerals

Korges, Maximilian; Weis, Philipp; Lüders, Volker; Laurent, Oscar

doi:10.1007/s00126-019-00905-4

Cited by 27 publications

(8 citation statements)

References 52 publications

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“…The overall flat REY SN pattern of fluorite I is very unusual and has not been reported from other fluorite vein deposits in Central Europe. It also lacks similarity to fluorite associated with greisen and skarn deposits in the Erzgebirge that formed at higher temperatures (Korges et al 2019;Lefebvre et al 2019;Wolff et al 2015b). The flat pattern is, however, very similar to the REE SN patterns of the unaltered host rock (Mingram et al 2004;Tichomirowa et al 2012) (Fig.…”

Section: Rey Sources and Water-rock Interactionmentioning

confidence: 90%

The Niederschlag fluorite-(barite) deposit, Erzgebirge/Germany—a fluid inclusion and trace element study

Haschke

Gutzmer

Wohlgemuth‐Ueberwasser

et al. 2021

Miner Deposita

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The Niederschlag fluorite-barite vein deposit in the Western Erzgebirge, Germany, has been actively mined since 2013. We present the results of a first comprehensive study of the mineralogy, petrography, fluid inclusions, and trace element geochemistry of fluorite related to the Niederschlag deposit. Two different stages of fluorite mineralization are recognized. Stage I fluorite is older, fine-grained, associated with quartz, and forms complex breccia and replacement textures. Conversely, the younger Stage II fluorite is accompanied by barite and often occurs as banded and coarse crystalline open-space infill. Fluid inclusion and REY systematics are distinctly different for these two fluorite stages. Fluid inclusions in fluorite I reveal the presence of a low to medium saline (7–20% eq. w (NaCl+CaCl2)) fluid with homogenization temperatures of 140–180 °C, whereas fluorite II inclusions yield distinctly lower (80–120 °C) homogenization temperatures with at least two high salinity fluids involved (18–27% eq. w (NaCl+CaCl2)). In the absence of geochronological data, the genesis of the earlier generation of fluorite-quartz mineralization remains enigmatic but is tentatively related to Permian magmatism in the Erzgebirge. The younger fluorite-barite mineralization, on the other hand, has similarities to many fluorite-barite-Pb-Zn-Cu vein deposits in Europe that are widely accepted to be related to the Mesozoic opening of the northern Atlantic Ocean.

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Section: Rey Sources and Water-rock Interactionmentioning

confidence: 90%

The Niederschlag fluorite-(barite) deposit, Erzgebirge/Germany—a fluid inclusion and trace element study

Haschke

Gutzmer

Wohlgemuth‐Ueberwasser

et al. 2021

Miner Deposita

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“…The Erzgebirge is host to numerous types of ore deposits (e.g., Baumann et al, 2000;Haschke et al, 2021;Reinhardt et al, 2021;Guilcher, in press). Most prominent among these are magmatic-hydrothermal deposits such as skarns (Schuppan and Hiller, 2012;Bauer et al, 2019b;Burisch et al, 2019b;Korges et al, 2020;Reinhardt et al, 2021), greisens (Štemprok, 1967;Zhang et al, 2017;Korges et al, 2020), and epithermal veins (Bauer et al, 2019a;Burisch et al, 2019a).…”

Section: Regional Geologymentioning

confidence: 99%

Spatial and Temporal Evolution of the Freiberg Epithermal Ag-Pb-Zn District, Germany

et al. 2021

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The Freiberg district hosts one of the largest series of epithermal polymetallic vein deposits in Europe. The availability of a systematic collection of historical samples provides an excellent opportunity to study the anatomy of these epithermal systems. Detailed petrographic investigations, geochemical analyses, and fluid inclusion studies were conducted on several vertical profiles within the Freiberg district to decipher mineralogical and geochemical zoning patterns. Six distinctive mineral associations have been recognized within the Freiberg epithermal veins; sphalerite-pyrite-quartz and galena-quartz±carbonate associations are most abundant in the central sector, as well as in the deepest sections of veins on the periphery of the district. A high-grade sphalerite-Ag-sulfides-carbonate association occurs laterally between the central and peripheral sectors and at intermediate depth in veins on the periphery. Shallow and peripheral zones are dominated by an exceptionally Ag-rich Ag-sulfides-quartz association, whereas the shallowest veins locally comprise Ag-poor stibnite-quartz and quartz-carbonate associations. Fluid inclusion assemblages returned low salinities (<6.0 wt % NaCl equiv), and homogenization temperatures successively decrease from ~320°C associated with the proximal and deep sphalerite-pyrite-quartz association, to ~170°C related to the distal and shallow Ag-sulfides-quartz association. The architecture of the Freiberg district is related to the temporal and spatial evolution of magmatic-hydrothermal fluid systems, including boiling and concomitant cooling, as well as CO2 loss. Constraints on the paleodepth indicate that the veins formed between 200 and 1,800 m below the paleowater table. High-grade Ag ore occurs over a vertical interval of at least 500 m and is bracketed by shallower stibnite-quartz and barren quartz, and deeper base metal-sulfide-quartz zones.

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“…Taken together, a fast-scanning quadrupole ICP-MS instrument allows for more accurate and representative data to be acquired when performing LA-ICP-MS analyses of fluid inclusions. Examples of recent applications using this technique can be found in the literature [30][31][32] . Importantly, the same benefits would be relevant to other applications demanding short, transient signals, such as high-resolution LA-ICP-MS element mapping using the next generation of low dispersion ablation cells 33 . )…”

Section: Discussionmentioning

confidence: 99%

Advantages of a fast-scanning quadrupole for LA-ICP-MS analysis of fluid inclusions

Laurent

Guillong

Heinrich

et al. 2021

J. Anal. At. Spectrom.

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Sequential evolution of Sn–Zn–In mineralization at the skarn-hosted Hämmerlein deposit, Erzgebirge, Germany, from fluid inclusions in ore and gangue minerals

Cited by 27 publications

References 52 publications

The Niederschlag fluorite-(barite) deposit, Erzgebirge/Germany—a fluid inclusion and trace element study

The Niederschlag fluorite-(barite) deposit, Erzgebirge/Germany—a fluid inclusion and trace element study

Spatial and Temporal Evolution of the Freiberg Epithermal Ag-Pb-Zn District, Germany

Advantages of a fast-scanning quadrupole for LA-ICP-MS analysis of fluid inclusions

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