Reference Type | Journal (article/letter/editorial) |
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Title | Lead isotopic compositions of Paleozoic to Miocene ore deposits in the Western Tethyan Belt |
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Journal | Ore Geology Reviews |
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Authors | Tămaș, Călin G. | Author |
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Veres, Daniel | Author |
Chauvel, Catherine | Author |
Year | 2024 | Volume | < 175 > |
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Page(s) | 106346 |
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URL | |
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DOI | doi:10.1016/j.oregeorev.2024.106346Search in ResearchGate |
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Classification | Not set | LoC | Not set |
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Mindat Ref. ID | 17710473 | Long-form Identifier | mindat:1:5:17710473:4 |
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GUID | 0 |
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Full Reference | Tămaș, Călin G., Veres, Daniel, Chauvel, Catherine (2024) Lead isotopic compositions of Paleozoic to Miocene ore deposits in the Western Tethyan Belt. Ore Geology Reviews, 175. 106346 doi:10.1016/j.oregeorev.2024.106346 |
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Plain Text | Tămaș, Călin G., Veres, Daniel, Chauvel, Catherine (2024) Lead isotopic compositions of Paleozoic to Miocene ore deposits in the Western Tethyan Belt. Ore Geology Reviews, 175. 106346 doi:10.1016/j.oregeorev.2024.106346 |
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In | Link this record to the correct parent record (if possible) |
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Abstract/Notes | The Romanian Carpathians host some of the richest base and precious metal deposits in Europe. The existing lead isotopic data for Romania covered almost exclusively Miocene epithermal and porphyry deposits in the Baia Mare area and the South Apuseni Mountains. There is, therefore, an evident lack of isotopic and chronological constraints which have limited the metallogenic interpretation of the metal sources and hindered data-supported comparisons with the neighboring metallogenic units within the Western Tethyan Belt. New lead isotopic analyses were carried out on ore samples selected from Cambrian to Miocene magmatic sulfide, porphyry, skarn-related, replacement, epithermal, and metamorphosed and unmetamorphosed volcanogenic massive sulfide deposits located in the Apuseni Mountains (North and South), Banat, Southern Carpathians, and Dobrogea. The range of the analyzed ores is 17.926 to 19.083 for 206Pb/204Pb, 15.550 to 15.741 for 207Pb/204Pb, and 38.062 to 39.224 for 208Pb/204Pb. It turns out that the lead isotopic composition of the ores clusters by age, i.e., Paleozoic, Triassic-Jurassic, and Cretaceous-Miocene. The average of lead isotopic values of Paleozoic ores is 18.168 for 206Pb/204Pb, 15.681 for 207Pb/204Pb, and 38.216 for 208Pb/204Pb; of Triassic-Jurassic ores is 18.442 for 206Pb/204Pb, 15.606 for 207Pb/204Pb, and 38.324 for 208Pb/204Pb; and of Cretaceous and Miocene ores is 18.677 for 206Pb/204Pb, 15.662 for 207Pb/204Pb, 38.726 for 208Pb/204Pb. The wider age range and the broader geological coverage of the analyzed ore deposits reveal that the radiogenic lead isotopic composition of the ores increases with time but always overlaps with the isotopic ranges defined by the host rocks. Since the Paleozoic, except a Late Jurassic magmatic sulfide deposit related to tholeiitic magmatic rocks where the upper mantle is the main source of lead, the lead incorporated in Carpathian ores has a typical crustal signature with a model µ value (238U/204Pb) of about 10 and a time-integrated Th/U ratio of about 4.0. The calculated model ages of the ores are generally older than the ore deposition ages demonstrating that older crustal material contributed to the lead within the ores. Our results significantly increase the available lead isotopic data for Romanian ores, and allows for the first comprehensive overview of the lead isotopic signatures of the ore deposits in the Western Tethyan Belt through geological time. |
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Locality | Mineral(s) |
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Almas-Stanija ore field, Almașu Mare, Alba County, Romania | ⓘ Arsenopyrite, ⓘ Chalcopyrite, ⓘ Galena, ⓘ Native Gold, ⓘ Proustite, ⓘ Pyrite, ⓘ Sphalerite, ⓘ Tetrahedrite Subgroup |
Hanes, Almașu Mare, Alba County, Romania | ⓘ Chalcopyrite, ⓘ Galena, ⓘ Pyrite, ⓘ Sphalerite |
Muncaceasca-Stanija, Almașu Mare, Alba County, Romania | ⓘ Galena, ⓘ Native Gold, ⓘ Pyrite |
Stanija-Popa, Almașu Mare, Alba County, Romania | ⓘ Goethite, ⓘ Pyrite |
Baia de Aries, Baia de Arieș, Alba County, Romania | ⓘ Chalcopyrite, ⓘ Galena, ⓘ Pyrite, ⓘ Sphalerite |
Bucium Tarnita porphyry Cu-Au deposit, Bucium, Bucium, Alba County, Romania | ⓘ Chalcopyrite, ⓘ Covellite, ⓘ Goethite, ⓘ Porphyry, ⓘ Pyrite |
Roșia Poieni Mine, Mușca, Lupșa, Alba County, Romania | ⓘ Bornite, ⓘ Breccia, ⓘ Chalcopyrite, ⓘ Covellite, ⓘ Goethite, ⓘ Hematite, ⓘ Porphyry, ⓘ Pyrite |
Secas-Drocea prospect, Highiş Massif, Arad County, Romania | ⓘ Chalcopyrite, ⓘ Galena, ⓘ Hematite, ⓘ Magnetite, ⓘ Martinite, ⓘ Pyrite, ⓘ Sphalerite, ⓘ Tholeiitic basalt |
Valea lui Negulet, Leaota Mtn, Badeni, Stoenești, Argeş County, Romania | ⓘ Arsenopyrite, ⓘ Chalcopyrite, ⓘ Malachite, ⓘ Metamorphic rock, ⓘ Sphalerite, ⓘ Tetrahedrite Subgroup |
Cornitel mine, Bihor County, Romania | ⓘ Breccia, ⓘ Chalcopyrite, ⓘ Covellite, ⓘ Galena, ⓘ Pyrite, ⓘ Rhyolite, ⓘ Sphalerite |
Antoniu ore pipe, Băiţa mining district, Nucet, Bihor County, Romania | ⓘ Bornite, ⓘ Chalcopyrite, ⓘ Digenite, ⓘ Dolostone, ⓘ Electrum, ⓘ Galena, ⓘ Hessite, ⓘ Limestone, ⓘ Native Bismuth, ⓘ Native Gold, ⓘ Sphalerite, ⓘ Wittichenite |
Blidar deposit, Băiţa mining district, Nucet, Bihor County, Romania | ⓘ Calcite, ⓘ Dolostone, ⓘ Garnet Group, ⓘ Limestone, ⓘ Native Copper, ⓘ Skarn |
Dognecea mine, Dognecea, Caraş-Severin County, Romania | ⓘ Chalcopyrite, ⓘ Galena, ⓘ Garnet Group, ⓘ Hematite, ⓘ Limestone, ⓘ Porphyry, ⓘ Pyrite, ⓘ Pyroxene Group, ⓘ Skarn, ⓘ Sphalerite, ⓘ Tetrahedrite Subgroup |
Moldova Nouă Mine, Moldova Nouă, Caraş-Severin County, Romania | ⓘ Goethite, ⓘ Granodiorite, ⓘ Malachite, ⓘ Porphyry, ⓘ Skarn |
Tancova, Caraş-Severin County, Romania | ⓘ Chalcopyrite, ⓘ Galena, ⓘ Goethite, ⓘ Porphyry, ⓘ Quartz, ⓘ Skarn, ⓘ Tetrahedrite Subgroup |
Lita-Baisoara, Băișoara, Cluj County, Romania | ⓘ Chalcopyrite, ⓘ Galena, ⓘ Marcasite, ⓘ Pyrite, ⓘ Skarn, ⓘ Sphalerite |
Curechi Hartagani, Băița, Hunedoara County, Romania | ⓘ Chalcopyrite, ⓘ Galena, ⓘ Hessite, ⓘ Krennerite, ⓘ Pyrite, ⓘ Sphalerite, ⓘ Sylvanite, ⓘ Tetrahedrite Subgroup |
Bunavestire, Curechi Hartagani, Băița, Hunedoara County, Romania | ⓘ Chalcopyrite, ⓘ Galena, ⓘ Native Gold, ⓘ Proustite, ⓘ Pyrargyrite, ⓘ Pyrite, ⓘ Sphalerite, ⓘ Tetrahedrite Subgroup |
Deva Mine, Deva, Hunedoara County, Romania | ⓘ Bornite, ⓘ Chalcocite, ⓘ Chalcopyrite, ⓘ Native Gold, ⓘ Porphyry, ⓘ Pyrite |
Ciungani mine, Vaţa de Jos, Hunedoara County, Romania | ⓘ Chalcopyrite, ⓘ Magnetite, ⓘ Pillow lava, ⓘ Pyrite, ⓘ Pyrrhotite, ⓘ Tholeiitic basalt |
Muncelul Mic mine, Vețel, Hunedoara County, Romania | ⓘ Breccia, ⓘ Chalcopyrite, ⓘ Galena, ⓘ Metasedimentary rock, ⓘ Metavolcanic rock, ⓘ Pyrite, ⓘ Rhyolite, ⓘ Sphalerite, ⓘ Tuff |
Somova mine, Tulcea County, Romania | ⓘ Anglesite, ⓘ Cerussite, ⓘ Chalcopyrite, ⓘ Covellite, ⓘ Galena, ⓘ Malachite, ⓘ Pyrite, ⓘ Rhyolite, ⓘ Sphalerite |
Mina Altân-Tepe, Stejaru, Tulcea County, Romania | ⓘ Chalcopyrite, ⓘ Galena, ⓘ Hematite, ⓘ Magnetite, ⓘ Pyrite |
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