The Mokrsko-West gold deposit, Bohemian Massif, Czech Republic:
Mineralogy, deposit setting and classification

J 2014

The Mokrsko-West gold deposit, Bohemian Massif, Czech Republic: Mineralogy, deposit setting and classification

ZACHARIÁŠ, Jiří; Petr MORÁVEK; Petr GADAS a Jaroslava PERTOLDOVÁ

Základní údaje

Originální název

The Mokrsko-West gold deposit, Bohemian Massif, Czech Republic: Mineralogy, deposit setting and classification

Název česky

Ložisko zlata Mokrsko-západ, Český masív, Česká Republika: Mineralogie, ložiskové poměry a klasifikace

Autoři

ZACHARIÁŠ, Jiří; Petr MORÁVEK; Petr GADAS a Jaroslava PERTOLDOVÁ

Vydání

Ore Geology Reviews, Amsterdam, Elsevier, 2014, 0169-1368

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10500 1.5. Earth and related environmental sciences

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Full Text

Impakt faktor

Impact factor: 3.558

Označené pro přenos do RIV

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova česky

Zlato; ložisko zlata spojené s intruzí; orogenní ložiska zlata; arsenopyrit; bismut; teluridy; termometrie; liquida kovů

Klíčová slova anglicky

Gold; Intrusion-related gold deposits; Orogenic gold deposits; Arsenopyrite; Bismuth; Tellurides; Thermometry; Metallic liquids

Štítky

Příznaky

Mezinárodní význam

Změněno: 9. 1. 2020 16:53, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

The Mokrsko-West deposit is unique among European Variscan gold deposits from the points of view of both the structure (an approx. 200 m thick complex of sheeted, several mm-thick, densely spaced quartz veins) and the economic viability (gold reserves of about 100 t). The deposit is hosted mainly by tonalite of the calc-alkaline Sazava tonalite suite (ca. 354 Ma) of the Central Bohemian Plutonic Complex. Mineralization is characterized by quartz-dominated gangue, no visible hydrothermal alteration, low sulfide content, high fineness native gold accompanied by maldonite, aurostibite, native bismuth and numerous Bi-Te-(S) phases. Five mineralogical stages are described in great detail. Arsenopyrite and chlorite thermometers, mineral phase stabilities and published isotope and fluid inclusion data are used to reconstruct the temperature and compositional evolution of the system. The role of liquid bismuth in the sequestration of gold is also discussed. The deposit shares the features of both orogenic gold (ORG) and intrusion-related gold (IRG) deposits. The IRG model is advocated by close spatial association between the ore zone and the tonalite host-intrusion, by the absence/scarcity of hydrothermal alteration, by the Au-Bi-Te-As elemental association and by marked thermal gradients from the early to late mineralization stages. The ORG model is advocated by an approx. 15-10 Ma gap between the intrusion of the tonalite-host and the ore formation, by isotope and geochemical evidence for a key role of metamorphic fluids in the mobilization and transfer of many elements/species (inclusive S and Au). The apparently ambiguous classification of the deposit can most probably be attributed to deposit formation at a depth of >= 9 km and to setting of the deposit at/inside a large-scale plutonic complex with multiple and prolonged tectonic and intrusive activity.

Citovat

ZACHARIÁŠ, Jiří; Petr MORÁVEK; Petr GADAS a Jaroslava PERTOLDOVÁ. The Mokrsko-West gold deposit, Bohemian Massif, Czech Republic: Mineralogy, deposit setting and classification. Ore Geology Reviews. Amsterdam: Elsevier, 2014, roč. 2014, č. 58, s. 238-263. ISSN 0169-1368. Dostupné z: https://doi.org/10.1016/j.oregeorev.2013.11.005.

@article{1230676,
   author = {Zachariáš, Jiří and Morávek, Petr and Gadas, Petr and Pertoldová, Jaroslava},
   article_location = {Amsterdam},
   article_number = {58},
   doi = {https://doi.org/10.1016/j.oregeorev.2013.11.005},
   keywords = {Gold; Intrusion-related gold deposits; Orogenic gold deposits; Arsenopyrite; Bismuth; Tellurides; Thermometry; Metallic liquids},
   language = {eng},
   issn = {0169-1368},
   journal = {Ore Geology Reviews},
   note = {Ani Pan Zachariáš ani pan Gadas nemají na WoS afiliaci na MU, nelze tedy výsledek přenášet do RIV!},
   title = {The Mokrsko-West gold deposit, Bohemian Massif, Czech Republic: Mineralogy, deposit setting and classification},
   url = {https://www.sciencedirect.com/science/article/pii/S0169136813002771},
   volume = {2014},
   year = {2014}
}

TY  - JOUR
ID  - 1230676
AU  - Zachariáš, Jiří - Morávek, Petr - Gadas, Petr - Pertoldová, Jaroslava
PY  - 2014
TI  - The Mokrsko-West gold deposit, Bohemian Massif, Czech Republic: Mineralogy, deposit setting and classification
JF  - Ore Geology Reviews
VL  - 2014
IS  - 58
SP  - 238-263
EP  - 238-263
PB  - Elsevier
SN  - 01691368
N1  - Ani Pan Zachariáš ani pan Gadas nemají na WoS afiliaci na MU, nelze tedy výsledek přenášet do RIV!
KW  - Gold
KW  - Intrusion-related gold deposits
KW  - Orogenic gold deposits
KW  - Arsenopyrite
KW  - Bismuth
KW  - Tellurides
KW  - Thermometry
KW  - Metallic liquids
UR  - https://www.sciencedirect.com/science/article/pii/S0169136813002771
N2  - The Mokrsko-West deposit is unique among European Variscan gold deposits from the points of view of both the structure (an approx. 200 m thick complex of sheeted, several mm-thick, densely spaced quartz veins) and the economic viability (gold reserves of about 100 t). The deposit is hosted mainly by tonalite of the calc-alkaline Sazava tonalite suite (ca. 354 Ma) of the Central Bohemian Plutonic Complex. Mineralization is characterized by quartz-dominated gangue, no visible hydrothermal alteration, low sulfide content, high fineness native gold accompanied by maldonite, aurostibite, native bismuth and numerous Bi-Te-(S) phases. Five mineralogical stages are described in great detail. Arsenopyrite and chlorite thermometers, mineral phase stabilities and published isotope and fluid inclusion data are used to reconstruct the temperature and compositional evolution of the system. The role of liquid bismuth in the sequestration of gold is also discussed. The deposit shares the features of both orogenic gold (ORG) and intrusion-related gold (IRG) deposits. The IRG model is advocated by close spatial association between the ore zone and the tonalite host-intrusion, by the absence/scarcity of hydrothermal alteration, by the Au-Bi-Te-As elemental association and by marked thermal gradients from the early to late mineralization stages. The ORG model is advocated by an approx. 15-10 Ma gap between the intrusion of the tonalite-host and the ore formation, by isotope and geochemical evidence for a key role of metamorphic fluids in the mobilization and transfer of many elements/species (inclusive S and Au). The apparently ambiguous classification of the deposit can most probably be attributed to deposit formation at a depth of >= 9 km and to setting of the deposit at/inside a large-scale plutonic complex with multiple and prolonged tectonic and intrusive activity.
ER  -

ZACHARIÁŠ, Jiří; Petr MORÁVEK; Petr GADAS a Jaroslava PERTOLDOVÁ. The Mokrsko-West gold deposit, Bohemian Massif, Czech Republic: Mineralogy, deposit setting and classification. \textit{Ore Geology Reviews}. Amsterdam: Elsevier, 2014, roč.~2014, č.~58, s.~238-263. ISSN~0169-1368. Dostupné z: https://doi.org/10.1016/j.oregeorev.2013.11.005.

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