A «necklace» of large clusters of strategic raw materials over a stagnant oceanic slab in East Asia
An analysis of geological-geophysical, metallogenic, geochronological, and seismic tomographic studies in territories joining Southeast Russia, East Mongolia, and Northeast China led to the conclusion that deep geodynamics significantly influenced the formation of highly productive ore-magmatic syst...
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AIMS Press
2024-11-01
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| Series: | AIMS Geosciences |
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| Online Access: | https://www.aimspress.com/article/doi/10.3934/geosci.2024040 |
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| author | Natalia Boriskina |
| author_facet | Natalia Boriskina |
| author_sort | Natalia Boriskina |
| collection | DOAJ |
| description | An analysis of geological-geophysical, metallogenic, geochronological, and seismic tomographic studies in territories joining Southeast Russia, East Mongolia, and Northeast China led to the conclusion that deep geodynamics significantly influenced the formation of highly productive ore-magmatic systems in the Late Jurassic-Early Cretaceous. This influence was likely manifested through the initiation of decompression processes around stagnant slab boundaries in the Late Mesozoic. Decompression and advection, which are particularly active near the natural boundaries of the slab, act as triggers for the intense interaction of under and over subduction asthenospheric fluids with adjacent sections of the mantle and for the directed upwelling of powerful flows of matter and energy into the lithosphere. These flows determine the locations of intermediate and peripheral magma chambers: Primary chambers in the lower lithosphere among the metasomatized mantle and lower crust and associated chambers in the middle and upper cratonized parts of the lithosphere. Large ore clusters containing noble metals (Au, PGE), uranium, fluorite, and Cu-Mo-porphyry deposits are associated with late- and postmagmatic derivatives of the emerging magma chambers over the frontal and peripheral (paleotransform) boundaries of a stagnant Pacific slab. These large Late Mesozoic ore clusters and districts form a distinctive 'necklace' of strategic materials in East Asia. |
| format | Article |
| id | doaj-art-cfc1fd956c4d4dfc9172cce9c9f8de40 |
| institution | Kabale University |
| issn | 2471-2132 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | AIMS Press |
| record_format | Article |
| series | AIMS Geosciences |
| spelling | doaj-art-cfc1fd956c4d4dfc9172cce9c9f8de402025-01-24T01:13:55ZengAIMS PressAIMS Geosciences2471-21322024-11-0110486488110.3934/geosci.2024040A «necklace» of large clusters of strategic raw materials over a stagnant oceanic slab in East AsiaNatalia Boriskina0Far East Geological Institute, Far Eastern Branch of Russian Academy of Sciences, 159 pr-t 100 let Vladivostoku, Vladivostok, RussiaAn analysis of geological-geophysical, metallogenic, geochronological, and seismic tomographic studies in territories joining Southeast Russia, East Mongolia, and Northeast China led to the conclusion that deep geodynamics significantly influenced the formation of highly productive ore-magmatic systems in the Late Jurassic-Early Cretaceous. This influence was likely manifested through the initiation of decompression processes around stagnant slab boundaries in the Late Mesozoic. Decompression and advection, which are particularly active near the natural boundaries of the slab, act as triggers for the intense interaction of under and over subduction asthenospheric fluids with adjacent sections of the mantle and for the directed upwelling of powerful flows of matter and energy into the lithosphere. These flows determine the locations of intermediate and peripheral magma chambers: Primary chambers in the lower lithosphere among the metasomatized mantle and lower crust and associated chambers in the middle and upper cratonized parts of the lithosphere. Large ore clusters containing noble metals (Au, PGE), uranium, fluorite, and Cu-Mo-porphyry deposits are associated with late- and postmagmatic derivatives of the emerging magma chambers over the frontal and peripheral (paleotransform) boundaries of a stagnant Pacific slab. These large Late Mesozoic ore clusters and districts form a distinctive 'necklace' of strategic materials in East Asia.https://www.aimspress.com/article/doi/10.3934/geosci.2024040slab subductioneast asialate mesozoic ore clustersnoble metaluraniumfluoriteand cu-mo-porphyry deposits |
| spellingShingle | Natalia Boriskina A «necklace» of large clusters of strategic raw materials over a stagnant oceanic slab in East Asia AIMS Geosciences slab subduction east asia late mesozoic ore clusters noble metal uranium fluorite and cu-mo-porphyry deposits |
| title | A «necklace» of large clusters of strategic raw materials over a stagnant oceanic slab in East Asia |
| title_full | A «necklace» of large clusters of strategic raw materials over a stagnant oceanic slab in East Asia |
| title_fullStr | A «necklace» of large clusters of strategic raw materials over a stagnant oceanic slab in East Asia |
| title_full_unstemmed | A «necklace» of large clusters of strategic raw materials over a stagnant oceanic slab in East Asia |
| title_short | A «necklace» of large clusters of strategic raw materials over a stagnant oceanic slab in East Asia |
| title_sort | necklace of large clusters of strategic raw materials over a stagnant oceanic slab in east asia |
| topic | slab subduction east asia late mesozoic ore clusters noble metal uranium fluorite and cu-mo-porphyry deposits |
| url | https://www.aimspress.com/article/doi/10.3934/geosci.2024040 |
| work_keys_str_mv | AT nataliaboriskina anecklaceoflargeclustersofstrategicrawmaterialsoverastagnantoceanicslabineastasia AT nataliaboriskina necklaceoflargeclustersofstrategicrawmaterialsoverastagnantoceanicslabineastasia |