Cretaceous Porphyry-Epithermal Systems of the Srednogorie Zone, Bulgaria

Bogdanov, Kamen; Strashimirov, Strashimir

doi:10.5382/gb.36

Cited by 4 publications

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“…Епитермалното високосулфидно медно-златно находище Челопеч в Панагюрския руден район, част от къснокредния Апусени-Банат-Тимок-Средногорския магматичен и металогенен пояс (Popov et al, 2000(Popov et al, , 2002Bogdanov, Popov, 2003), е обект на най-различни изследвания през последните десетилетия. Основна цел на настоящото изследване е не само да се определи съдържанието и формата на свързване на елементите-примеси в енаргит-лузонит и пирит, но и пространственото им разпространение по блоковете и разпределението им между двата минерала-носителя с акцент върху невидимото злато, вредните примеси (като Tl и Hg) и т.нар.…”

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Geochemistry of ore minerals from Chelopech deposit: II. Trace-elements in enargite-luzonite

Vangelova¹

2023

Rev. Bulg. Geol. Soc.

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The concentrations of trace elements in enargite-luzonite from blocks 8, 19-SE, 19-NW, 19-NE, 19-SW, 103-W, 103-E, 144, 146, 147, 149-south, 150, and 151 of copper-gold high sulphidation Chelopech deposit were determined by LA-ICP-MS. It was found that the enargite-luzonites from the individual blocks are enriched in different degrees of “impurity” elements: those from block 19-SW are enriched in Ge, Ga, and W; from block 146 of Bi; from block 147 of Se, Sb, Sn, and In; from block 149-south of Zn, Pb, Tl, and Cd; from block 8 of Fe, Mn, and Ti; from block 103-Е of Au and Hg; from block 103-W of V, Ga, and Mo; from block 150 of Ag and from block 151 of Те. In addition, a preferential distribution of trace elements between pyrite and enargite-luzonite is observed. For example, silver, lead, manganese, nickel, cobalt, thallium, molybdenum, chromium, and titanium are concentrated in the first, while germanium, gallium, indium, tin, zinc, antimony, tellurium, bismuth, mercury, vanadium, tungsten in the second, and in most cases they are structurally related. Both minerals are concentrators of gold, but it reaches its highest values in the latter (309 ppm from block 103-Е and 118 ppm from block 151), and in both cases its presence is mainly due to microinclusions of native gold and/or electrum and tellurides.

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Geochemistry of ore minerals from Chelopech deposit: II. Trace-elements in enargite-luzonite

Vangelova¹

2023

Rev. Bulg. Geol. Soc.

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Tectonic configuration of the Apuseni–Banat—Timok–Srednogorie belt, Balkans-South Carpathians, constrained by high precision Re–Os molybdenite ages

et al. 2007

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Critical Factors Controlling Pd and Pt Potential in Porphyry Cu–Au Deposits: Evidence from the Balkan Peninsula

Eliopoulos

Economou-Eliopoulos

Zelyaskova-Panayiotova

2014

Geosciences

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Porphyry Cu-Au-Pd±Pt deposits are significant Au resources, but their Pd and Pt potential is still unknown. Elevated Pd, Pt (hundreds of ppb) and Au contents are associated with typical stockwork magnetite-bornite-chalcopyrite assemblages, at the central parts of certain porphyry deposits. Unexpected high grade Cu-(Pd+Pt) (up to 6 ppm) mineralization with high Pd/Pt ratios at the Elatsite porphyry deposit, which is found in a spatial association with the Chelopech epithermal deposit (Bulgaria) and the Skouries porphyry deposit, may have formed during late stages of an evolved hydrothermal system. Estimated Pd, Pt and Au potential for porphyry deposits is consistent with literature model calculations demonstrating the capacity of aqueous vapor and brine to scavenge sufficient quantities of Pt and Pd, and could contribute to the global platinum-group element (PGE) production. Critical requirements controlling potential of porphyry deposits may be from the metals contained in magma (metasomatized asthenospheric mantle wedge as indicated by significant Cr, Co, Ni and Re contents). The Cr content may be an indicator for the mantle input.

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Cretaceous Porphyry-Epithermal Systems of the Srednogorie Zone, Bulgaria

Cited by 4 publications

References 0 publications

Geochemistry of ore minerals from Chelopech deposit: II. Trace-elements in enargite-luzonite

Geochemistry of ore minerals from Chelopech deposit: II. Trace-elements in enargite-luzonite

Tectonic configuration of the Apuseni–Banat—Timok–Srednogorie belt, Balkans-South Carpathians, constrained by high precision Re–Os molybdenite ages

Critical Factors Controlling Pd and Pt Potential in Porphyry Cu–Au Deposits: Evidence from the Balkan Peninsula

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