On the Ore-Forming Role of Small Intrusions on the Shallow Deposits of Epithermal and Porphyre Types.
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| Title: | On the Ore-Forming Role of Small Intrusions on the Shallow Deposits of Epithermal and Porphyre Types. |
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| Authors: | Ostapenko, N. S.1 (AUTHOR) ostapenko_ns@mail.ru, Neroda, O. N.1 (AUTHOR) neroda67@mail.ru |
| Source: | Izvestiya, Atmospheric & Oceanic Physics. 12/22/2022, Vol. 58 Issue 10, p1236-1253. 18p. |
| Subject Terms: | *Gold ores, *Igneous intrusions, *Ore deposits, *Porphyry, *Magmas, *Ores, *Fluid inclusions |
| Geographic Terms: | Russia, Kamchatka Peninsula (Russia), Transbaikalia (Russia) |
| Abstract: | The controversial topic of genetic relationships of shallow magmatogenic ore deposits with associated complexes of small intrusive bodies or separate syn-ore bodies is discussed in this article. Materials of the field study by the authors of four epithermal gold deposits of the Amur region are used. These materials are supplemented by an analysis of published data on the conditions and geological settings of the localization of a number of other epithermal and shallow Cu-Mo-porphyry deposits in various regions of Russia and other countries. The active thermal participation signs of syn-ore stocks and sill in retraction to intrusions and initiation of near-intrusive convection of deep-seated fluids during ore formation at epithermal gold deposits of the Amur region (Pokrovskoe, Pioner, Zheltunak, Bamskoe, and Mnogovershinnoe) have been established and confirmed by model experiments. These signs and zoning of metal deposition are also established at epithermal and porphyry deposits in other regions of Russia (Ural, Transbaikalia, and Kamchatka) and in other countries. Favorable conditions for ore accumulations have been identified. These conditions are associated with shallow syn-ore small intrusions and magma chambers at 11 characteristic deposits, including large and unique ones (Pioner, Mnogovershinnoe, Bingham, and Klaimax). [ABSTRACT FROM AUTHOR] |
| Database: | Energy & Power Source |
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| Abstract: | The controversial topic of genetic relationships of shallow magmatogenic ore deposits with associated complexes of small intrusive bodies or separate syn-ore bodies is discussed in this article. Materials of the field study by the authors of four epithermal gold deposits of the Amur region are used. These materials are supplemented by an analysis of published data on the conditions and geological settings of the localization of a number of other epithermal and shallow Cu-Mo-porphyry deposits in various regions of Russia and other countries. The active thermal participation signs of syn-ore stocks and sill in retraction to intrusions and initiation of near-intrusive convection of deep-seated fluids during ore formation at epithermal gold deposits of the Amur region (Pokrovskoe, Pioner, Zheltunak, Bamskoe, and Mnogovershinnoe) have been established and confirmed by model experiments. These signs and zoning of metal deposition are also established at epithermal and porphyry deposits in other regions of Russia (Ural, Transbaikalia, and Kamchatka) and in other countries. Favorable conditions for ore accumulations have been identified. These conditions are associated with shallow syn-ore small intrusions and magma chambers at 11 characteristic deposits, including large and unique ones (Pioner, Mnogovershinnoe, Bingham, and Klaimax). [ABSTRACT FROM AUTHOR] |
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| ISSN: | 00014338 |
| DOI: | 10.1134/S0001433822100073 |
