Gold-Bearing Brown Coal Deposits of the Zeya–Bureya Sedimentary Basin (East Russia): Fundamental Model of Formation
The primary sources and the conditions for the formation of the Paleogene–Neogene coal-bearing deposits in the Zeya–Bureya sedimentary basin were identified and studied with the help of paleogeographic reconstructions and geochemical analyses. Based on the results obtained, we suggest a new basic mo...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-06-01
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| Series: | Minerals |
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| Online Access: | https://www.mdpi.com/2075-163X/11/7/682 |
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| author | Anatoliy Petrovich Sorokin Andrey Alexeyevich Konyushok Valeriy Mikhailovich Kuz’minykh Sergey Vadimovich Dugin |
| author_facet | Anatoliy Petrovich Sorokin Andrey Alexeyevich Konyushok Valeriy Mikhailovich Kuz’minykh Sergey Vadimovich Dugin |
| author_sort | Anatoliy Petrovich Sorokin |
| collection | DOAJ |
| description | The primary sources and the conditions for the formation of the Paleogene–Neogene coal-bearing deposits in the Zeya–Bureya sedimentary basin were identified and studied with the help of paleogeographic reconstructions and geochemical analyses. Based on the results obtained, we suggest a new basic model of element transfer into the coal, involving two mutually complementary processes to account for the introduction and concentration of gold and other trace elements in the sequences investigated. The first process reflects the system in which peatlands were concentrated along the basin’s junction zone and the passive internal residual mountain ranges. The second reflects the junction’s contrast-type (sharp-type) forms conditions along the external mobile mountain-fold frame. The eroded gold particles were transported over 10–20 km as complex compounds, colloids, dispersed particles, and nanoparticles, and remobilized into clastogenic and dissolved forms along the first few kilometers. The release of gold in the primary sources occurred due to weathering of gold-bearing ore zones, followed by transportation of gold by minor rivers to the areas of peat accumulation. This study considered the probability of the accumulation of high concentrations of gold and rare earth elements (REE) in coal due to the introduction of organic and inorganic materials during floods, with episodes of catastrophic events, and volcano–hydrothermal activities. |
| first_indexed | 2024-03-10T10:02:50Z |
| format | Article |
| id | doaj.art-9b92e0227376478db7981eaae40cf8a0 |
| institution | Directory Open Access Journal |
| issn | 2075-163X |
| language | English |
| last_indexed | 2024-03-10T10:02:50Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Minerals |
| spelling | doaj.art-9b92e0227376478db7981eaae40cf8a02023-11-22T01:49:13ZengMDPI AGMinerals2075-163X2021-06-0111768210.3390/min11070682Gold-Bearing Brown Coal Deposits of the Zeya–Bureya Sedimentary Basin (East Russia): Fundamental Model of FormationAnatoliy Petrovich Sorokin0Andrey Alexeyevich Konyushok1Valeriy Mikhailovich Kuz’minykh2Sergey Vadimovich Dugin3Institute of Geology and Nature Management, Far East Branch, Russian Academy of Sciences Riolochniy Ln., 1, 675000 Blagoveshchensk, RussiaInstitute of Geology and Nature Management, Far East Branch, Russian Academy of Sciences Riolochniy Ln., 1, 675000 Blagoveshchensk, RussiaInstitute of Geology and Nature Management, Far East Branch, Russian Academy of Sciences Riolochniy Ln., 1, 675000 Blagoveshchensk, RussiaInstitute of Geology and Nature Management, Far East Branch, Russian Academy of Sciences Riolochniy Ln., 1, 675000 Blagoveshchensk, RussiaThe primary sources and the conditions for the formation of the Paleogene–Neogene coal-bearing deposits in the Zeya–Bureya sedimentary basin were identified and studied with the help of paleogeographic reconstructions and geochemical analyses. Based on the results obtained, we suggest a new basic model of element transfer into the coal, involving two mutually complementary processes to account for the introduction and concentration of gold and other trace elements in the sequences investigated. The first process reflects the system in which peatlands were concentrated along the basin’s junction zone and the passive internal residual mountain ranges. The second reflects the junction’s contrast-type (sharp-type) forms conditions along the external mobile mountain-fold frame. The eroded gold particles were transported over 10–20 km as complex compounds, colloids, dispersed particles, and nanoparticles, and remobilized into clastogenic and dissolved forms along the first few kilometers. The release of gold in the primary sources occurred due to weathering of gold-bearing ore zones, followed by transportation of gold by minor rivers to the areas of peat accumulation. This study considered the probability of the accumulation of high concentrations of gold and rare earth elements (REE) in coal due to the introduction of organic and inorganic materials during floods, with episodes of catastrophic events, and volcano–hydrothermal activities.https://www.mdpi.com/2075-163X/11/7/682brown coalgold contentprovenances analysisgold mineralizationweatheringsedimentation model |
| spellingShingle | Anatoliy Petrovich Sorokin Andrey Alexeyevich Konyushok Valeriy Mikhailovich Kuz’minykh Sergey Vadimovich Dugin Gold-Bearing Brown Coal Deposits of the Zeya–Bureya Sedimentary Basin (East Russia): Fundamental Model of Formation Minerals brown coal gold content provenances analysis gold mineralization weathering sedimentation model |
| title | Gold-Bearing Brown Coal Deposits of the Zeya–Bureya Sedimentary Basin (East Russia): Fundamental Model of Formation |
| title_full | Gold-Bearing Brown Coal Deposits of the Zeya–Bureya Sedimentary Basin (East Russia): Fundamental Model of Formation |
| title_fullStr | Gold-Bearing Brown Coal Deposits of the Zeya–Bureya Sedimentary Basin (East Russia): Fundamental Model of Formation |
| title_full_unstemmed | Gold-Bearing Brown Coal Deposits of the Zeya–Bureya Sedimentary Basin (East Russia): Fundamental Model of Formation |
| title_short | Gold-Bearing Brown Coal Deposits of the Zeya–Bureya Sedimentary Basin (East Russia): Fundamental Model of Formation |
| title_sort | gold bearing brown coal deposits of the zeya bureya sedimentary basin east russia fundamental model of formation |
| topic | brown coal gold content provenances analysis gold mineralization weathering sedimentation model |
| url | https://www.mdpi.com/2075-163X/11/7/682 |
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