Comments on the genesis of the Eastern-Alpine Zn-Pb deposits

Dżułyński, Stanisław; Sass-Gustkiewicz, Maria

doi:10.1007/bf00206028

Cited by 10 publications

(3 citation statements)

References 11 publications

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“…However, they deserve attention because of the impact they have had on the dispute concerning the origin of many carbonate-hosted deposits, i.e., if filled with internal sediments, they bear a superficial and confusing similarity to submarine scour-and-fill structures. In our opinion, all the alleged erosion furrows containing clastic fragments of ores and cited as evidence of a syngenetic origin of alpine and other deposits (Schneider, 1964;Schulz, 1964;Park and Amstutz, 1968) are infillings of plano-convex or triangular caves (Dzulynski and Sass-Gustkiewicz, 1977).…”

Section: And Are Not Common In Other Mississippimentioning

confidence: 80%

“…Such a differentiation of crevices and crevice deposits is of great theoretical and practical importance. There also is a growing awareness of the implications that such structures may have for the genesis and tectonic setting of Mississippi Valley-type deposits (Dzulynski and Sass-Gustkiewicz, 1980;Sawkins, 1980). Mineralized crevices reveal magmatic brecciation that may well be interpreted in terms of hydraulic fracturing produced by the forcible injection of orebearing solutions into the walls of crevices.…”

Section: Ores In Tectonic Voidsmentioning

confidence: 99%

“…Clearly, this factor may not be discernible from the present character of the rocks. Among the other factors there are: specific groundwater horizons and consequent mingling of different solutions, the position of the water table (Dzulynski andSass-Gustkiewicz, 1977, 1980) bonate. There is a good possibility that a part of this calcium carbonate was deposited on the surface.…”

Section: Silesian Districtmentioning

confidence: 99%

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The emplacement of zinc-lead sulfide ores in the Upper Silesian District; a contribution to the understanding of mississippi valley-type deposits

Sass-Gustkiewicz¹,

Dżułyński²,

RIDGE³

1982

Economic Geology

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This paper discusses the manner in which Upper Silesian zinc-lead ores of Mississippi Valley type were introduced into, and deposited within, the ore-bearing dolomite, the host rock of the ores. The ore-bearing dolomite is a neosome developed in Triassic carbonates through dolomitization of limestones and recrystallization of primary or early diagenetic dolomites. It contains three types of ore: (1) ore deposited in rock openings; (2) metasomatically emplaced ore; and ($) ore that crystallized in disaggregated, i.e., delithified, dolomite. The ores were emplaced by mineralizing solutions circulating through an aquifer(s) in lithified rocks. The action of these solutions, combined with that of mobilized ground waters, accounts for the formation of the ore-bearing dolomite. The sulfide ores definitely are epigenetic in relation to their host rocks, and there is no evidence that they were ever part of primary bottom sediments. Further, no evidence is known to us of lateral deposition within the Triassic strata. Mineralization worked outward from those rock volumes that contained the greatest abundance of solution voids. Ample geologic evidence, discussed in this paper, confirmed by measurements of temperature ranges for sulfide precipitation, clearly points to ascending hydrothermal solutions as the progenitors of the ore mineralization. These solutions are thought to be responsible for the formation of conspicuous mineralized karst structures (hydrothermal karsts) that are among the most important ore hosts in the Upper Silesian ore district. The geologic evidence (as detailed in this paper) also indicates that the hydrothermal orebearing solutions rose on a broad front along the northeastern margin of the Silesian basin and, after gaining access to the Triassic aquifer, spread laterally to the south and southwest. larska, 1972). Not until the last decade, however, has the direct relationship of a considerable part of the Upper Silesian ores to underground karst structures been recognized. This direct relationship implies that the eraplacement of ores and the formation of underground karst were parts of the same formative processes and were essentially simultaneous. Such an implication led to the interpretation of Upper Silesian ores in terms of hydrothermal karst processes (Bogacz et al.,

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Section: And Are Not Common In Other Mississippimentioning

confidence: 80%

Section: Ores In Tectonic Voidsmentioning

confidence: 99%

Section: Silesian Districtmentioning

confidence: 99%

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