Origin of Historical Ba-Rich Slags Related to Pb-Ag Production
from Jihlava Ore District (Czech Republic)

J 2022

Origin of Historical Ba-Rich Slags Related to Pb-Ag Production from Jihlava Ore District (Czech Republic)

KAPUSTA, Jaroslav, Zdeněk DOLNÍČEK, Ondra SRACEK a Karel MALÝ

Základní údaje

Originální název

Origin of Historical Ba-Rich Slags Related to Pb-Ag Production from Jihlava Ore District (Czech Republic)

Autoři

KAPUSTA, Jaroslav (203 Česká republika, garant, domácí), Zdeněk DOLNÍČEK, Ondra SRACEK a Karel MALÝ

Vydání

Minerals, MDPI, 2022, 2075-163X

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10505 Geology

Stát vydavatele

Švýcarsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 2.500

Kód RIV

RIV/00216224:14310/22:00127679

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.3390/min12080985

UT WoS

000846696800001

Klíčová slova anglicky

slags; lead; silver; baryte; Jihlava Ore District; archaeometry; smelting

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 4. 1. 2023 13:07, Mgr. Marie Šípková, DiS.

Anotace

V originále

The aim of this study was to characterize historical slags which originated during silver production from the Jihlava ore district, Czech Republic. The area was among the head producers of silver within the Lands of the Czech Crown in 13th–14th centuries. The mined ores had complex composition, being formed mostly by pyrite, sphalerite, galena, chalcopyrite, and accessory silver-rich minerals such as silver-bearing tetrahedrite (freibergite) or pyrargyrite, with gangue represented by quartz and Mn-rich carbonates or baryte. Large volumes of slags with contrasting composition were generated during the Pb-Ag production. Altogether, two main types of slags were identified in the district. The first type is characterized by high BaO contents (up to 34.5 wt.%) and dominancy of glass, minor quartz, and accessory amounts of Ba-rich feldspar (up to 93 mol.% of Cls), metal-rich inclusions, Ba-Pb sulphates and only rare pyroxene, wollastonite and melilite. The composition of the second group belongs to fayalitic slags containing glass, Fe-rich olivine, accessory pyroxene, feldspar, quartz, and inclusions of various metallic phases. Fluxes were derived from gangue (quartz, carbonates, baryte) or local host rocks for both types of slag. The calculated viscosity indexes reflect (with minor exceptions) medium-to-high effectivity of metal separation. Smelting temperatures were estimated from a series of ternary plots; however, more reliable estimates for both types of slags were obtained only from experimental determination of melting temperature and calculations using bulk/glass compositions (~1100–1200 °C).

Citovat

KAPUSTA, Jaroslav, Zdeněk DOLNÍČEK, Ondra SRACEK a Karel MALÝ. Origin of Historical Ba-Rich Slags Related to Pb-Ag Production from Jihlava Ore District (Czech Republic). Minerals. MDPI, 2022, roč. 12, č. 8, s. 1-25. ISSN 2075-163X. Dostupné z: https://dx.doi.org/10.3390/min12080985.

@article{2243511,
   author = {Kapusta, Jaroslav and Dolníček, Zdeněk and Sracek, Ondra and Malý, Karel},
   article_number = {8},
   doi = {http://dx.doi.org/10.3390/min12080985},
   keywords = {slags; lead; silver; baryte; Jihlava Ore District; archaeometry; smelting},
   language = {eng},
   issn = {2075-163X},
   journal = {Minerals},
   title = {Origin of Historical Ba-Rich Slags Related to Pb-Ag Production from Jihlava Ore District (Czech Republic)},
   url = {https://www.mdpi.com/2075-163X/12/8/985},
   volume = {12},
   year = {2022}
}

TY  - JOUR
ID  - 2243511
AU  - Kapusta, Jaroslav - Dolníček, Zdeněk - Sracek, Ondra - Malý, Karel
PY  - 2022
TI  - Origin of Historical Ba-Rich Slags Related to Pb-Ag Production from Jihlava Ore District (Czech Republic)
JF  - Minerals
VL  - 12
IS  - 8
SP  - 1-25
EP  - 1-25
PB  - MDPI
SN  - 2075163X
KW  - slags
KW  - lead
KW  - silver
KW  - baryte
KW  - Jihlava Ore District
KW  - archaeometry
KW  - smelting
UR  - https://www.mdpi.com/2075-163X/12/8/985
N2  - The aim of this study was to characterize historical slags which originated during silver production from the Jihlava ore district, Czech Republic. The area was among the head producers of silver within the Lands of the Czech Crown in 13th–14th centuries. The mined ores had complex composition, being formed mostly by pyrite, sphalerite, galena, chalcopyrite, and accessory silver-rich minerals such as silver-bearing tetrahedrite (freibergite) or pyrargyrite, with gangue represented by quartz and Mn-rich carbonates or baryte. Large volumes of slags with contrasting composition were generated during the Pb-Ag production. Altogether, two main types of slags were identified in the district. The first type is characterized by high BaO contents (up to 34.5 wt.%) and dominancy of glass, minor quartz, and accessory amounts of Ba-rich feldspar (up to 93 mol.% of Cls), metal-rich inclusions, Ba-Pb sulphates and only rare pyroxene, wollastonite and melilite. The composition of the second group belongs to fayalitic slags containing glass, Fe-rich olivine, accessory pyroxene, feldspar, quartz, and inclusions of various metallic phases. Fluxes were derived from gangue (quartz, carbonates, baryte) or local host rocks for both types of slag. The calculated viscosity indexes reflect (with minor exceptions) medium-to-high effectivity of metal separation. Smelting temperatures were estimated from a series of ternary plots; however, more reliable estimates for both types of slags were obtained only from experimental determination of melting temperature and calculations using bulk/glass compositions (~1100–1200 °C).
ER  -

KAPUSTA, Jaroslav, Zdeněk DOLNÍČEK, Ondra SRACEK a Karel MALÝ. Origin of Historical Ba-Rich Slags Related to Pb-Ag Production from Jihlava Ore District (Czech Republic). \textit{Minerals}. MDPI, 2022, roč.~12, č.~8, s.~1-25. ISSN~2075-163X. Dostupné z: https://dx.doi.org/10.3390/min12080985.

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