Pb-Zn Ores

Dżułyński, Stanisław; Sass-Gustkiewicz, Maria

doi:10.1016/b978-0-444-98874-4.50028-8

Cited by 10 publications

(2 citation statements)

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“…Several authors consider karst openings of any size as ideal receptacles for various ore deposits (Dżul / yński & Sass-Gustkiewicz 1989, Dublyansky 1997, Liaghat et al 2000. Occasionally, hydrothermal minerals, such those reported under group (a), can be deposited in voids that are part of pre-existing karst channels of meteoric water.…”

Section: Types Of Mineralsmentioning

confidence: 98%

“…As discussed in this paper, a particular type of hydrothermal cave occurs where volcanogenic fluids trigger the dissolution process. In such cases, economic ore deposits, mainly of Pb-Zn, may be associated with the host rock (Mozgova 1963, Dżul / yński & Sass-Gustkiewicz 1989, Sass-Gustkiewicz & Dżul / yński 1998. This type of hydrothermal cave has received much less attention than the classical dissolution-induced cave.…”

Section: Introductionmentioning

confidence: 98%

See 1 more Smart Citation

Caves Formed Within Upper Cretaceous Skarns at Baita, Bihor County, Romania: Mineral Deposition and Speleogenesis

Onac

2002

The Canadian Mineralogist

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The Bǎiţa metallogenic district, in Bihor County, Romania, is genetically connected to a deep-seated Upper Cretaceous granitic pluton. Within this district, several bodies of skarn host economic concentrations of Mo, W, Bi, Cu, Pb, Zn, B, wollastonite, and marble. During mining, numerous karst cavities were encountered. Minerals such as wittichenite, antimonian luzonite, natrolite, quartz, chalcanthite, rosasite, glaukosphaerite, aurichalcite, azurite, malachite, norsethite and, more commonly, calcite, aragonite, hydromagnesite, and goethite were found within these skarn-hosted caves as crusts, coralloids, minute crystals, aggregates, and earthy masses. Some of the minerals are of hydrothermal origin, whereas others are interpreted to have formed during episodes of hydrothermal or vadose alteration. A third group consists of minerals that were precipitated from lowtemperature karstic waters. Although most skarn-hosted cavities exhibit the classical features of meteoric-water-induced cave, their mineralization, morphology, and position within the skarn support a hydrothermal or a mixed hydrothermal-vadose origin. SOMMAIRE Le district métallogénique de Bǎiţa, comté de Bihor, en Roumanie, est génétiquement associé à un pluton crétacé supérieur profond de composition granitique. Dans ce district, plusieurs masses de skarn contiennent des concentrations économiques de Mo, W, Bi, Cu, Pb, Zn, B, wollastonite, et marbre. Au cours de l'activité minière, de nombreuses cavités karstiques y ont été trouvées. La présence de minéraux tels que wittichénite, luzonite stibifère, natrolite, quartz, chalcanthite, rosasite, glaukosphaerite, aurichalcite, azurite, malachite, norséthite et, plus couramment, calcite, aragonite, hydromagnésite et goethite, a été notée dans les grottes développées à l'intérieur des skarns. Ces minéraux se présentent sous forme de croûtes, de coralloïdes, de petits cristaux et d'aggrégats. Un sous-groupe de ces minéraux a une origine hydrothermale ou vadose. Par contre, les minéraux d'un troisième groupe ont été précipité à partir des eaux karstiques à basse température. Bien que la plupart des cavités des skarns montrent des traits classiques d'une grotte due à des eaux météoriques, leur minéralisation, leur morphologie et leur position à l'intérieur des massifs skarnifiés étayent une origine hydrothermale ou hydrothermale-vadose.

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Section: Types Of Mineralsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 98%