GEOCHEMICAL CHARACTERISTICS OF MAFIC ROCKS IN THE STRUCTURE OF THE YENISEI-KHATANGA TROUGH AND THEIR BELONGING TO THE SIBERIAN TRAP PROVINCE
Consideration is being given to the geochemical composition of the rocks, representing the hidden part of the volcanic and intrusive material in the structure of the Yenisei-Khatanga Trough (YKT), in relation to its belonging to a large igneous province (LIP) of Siberia. The geochemical characterist...
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Russian Academy of Sciences, Siberian Branch, Institute of the Earth's crust
2024-04-01
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| Series: | Геодинамика и тектонофизика |
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| Online Access: | https://www.gt-crust.ru/jour/article/view/1817 |
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| author | O. P. Polyansky Yu. F. Filippov A. Y. Selyatitskii P. O. Polyansky |
| author_facet | O. P. Polyansky Yu. F. Filippov A. Y. Selyatitskii P. O. Polyansky |
| author_sort | O. P. Polyansky |
| collection | DOAJ |
| description | Consideration is being given to the geochemical composition of the rocks, representing the hidden part of the volcanic and intrusive material in the structure of the Yenisei-Khatanga Trough (YKT), in relation to its belonging to a large igneous province (LIP) of Siberia. The geochemical characteristics of mafic rocks, presenting in the sedimentary complexes of the YKT, correspond to three types of mafic rocks allocated to the Siberian LIP: Nadezhdinsky (low Ti), Morongovsky (low Ti), and, in limited quantities, Ivakinsky (rift-related high Ti). Based on the seismic data, there was constructed a deep structural-tectonic cross-sectional model, and there was considered the position of mafic intrusions in the sedimentary section in the western junction zone of the Siberian Platform and the Kara (Taimyr-Severozemelsky) orogen. The seismic data show an anomalous area in the lower crust and at the crust–mantle boundary immediately below the YKT depocenter, whose seismic section is characterized by a chaotic scattered wave field with no reflective boundaries. |
| format | Article |
| id | doaj-art-e110daf449034c06b5f06c379178b739 |
| institution | Kabale University |
| issn | 2078-502X |
| language | English |
| publishDate | 2024-04-01 |
| publisher | Russian Academy of Sciences, Siberian Branch, Institute of the Earth's crust |
| record_format | Article |
| series | Геодинамика и тектонофизика |
| spelling | doaj-art-e110daf449034c06b5f06c379178b7392025-08-20T03:37:06ZengRussian Academy of Sciences, Siberian Branch, Institute of the Earth's crustГеодинамика и тектонофизика2078-502X2024-04-0115210.5800/GT-2024-15-2-0747748GEOCHEMICAL CHARACTERISTICS OF MAFIC ROCKS IN THE STRUCTURE OF THE YENISEI-KHATANGA TROUGH AND THEIR BELONGING TO THE SIBERIAN TRAP PROVINCEO. P. Polyansky0Yu. F. Filippov1A. Y. Selyatitskii2P. O. Polyansky3Sobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of SciencesTrofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of the Russian Academy of Sciences ; Novosibirsk State UniversitySobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of SciencesSobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences ; Altai-Sayan Branch of the Federal Research Center of the Geophysical Survey, Russian Academy of SciencesConsideration is being given to the geochemical composition of the rocks, representing the hidden part of the volcanic and intrusive material in the structure of the Yenisei-Khatanga Trough (YKT), in relation to its belonging to a large igneous province (LIP) of Siberia. The geochemical characteristics of mafic rocks, presenting in the sedimentary complexes of the YKT, correspond to three types of mafic rocks allocated to the Siberian LIP: Nadezhdinsky (low Ti), Morongovsky (low Ti), and, in limited quantities, Ivakinsky (rift-related high Ti). Based on the seismic data, there was constructed a deep structural-tectonic cross-sectional model, and there was considered the position of mafic intrusions in the sedimentary section in the western junction zone of the Siberian Platform and the Kara (Taimyr-Severozemelsky) orogen. The seismic data show an anomalous area in the lower crust and at the crust–mantle boundary immediately below the YKT depocenter, whose seismic section is characterized by a chaotic scattered wave field with no reflective boundaries.https://www.gt-crust.ru/jour/article/view/1817siberian trapsmagmatismsillsdikesyenisei-khatanga troughgeochemistrytrace elementsseismic profilingseismic geological model |
| spellingShingle | O. P. Polyansky Yu. F. Filippov A. Y. Selyatitskii P. O. Polyansky GEOCHEMICAL CHARACTERISTICS OF MAFIC ROCKS IN THE STRUCTURE OF THE YENISEI-KHATANGA TROUGH AND THEIR BELONGING TO THE SIBERIAN TRAP PROVINCE Геодинамика и тектонофизика siberian traps magmatism sills dikes yenisei-khatanga trough geochemistry trace elements seismic profiling seismic geological model |
| title | GEOCHEMICAL CHARACTERISTICS OF MAFIC ROCKS IN THE STRUCTURE OF THE YENISEI-KHATANGA TROUGH AND THEIR BELONGING TO THE SIBERIAN TRAP PROVINCE |
| title_full | GEOCHEMICAL CHARACTERISTICS OF MAFIC ROCKS IN THE STRUCTURE OF THE YENISEI-KHATANGA TROUGH AND THEIR BELONGING TO THE SIBERIAN TRAP PROVINCE |
| title_fullStr | GEOCHEMICAL CHARACTERISTICS OF MAFIC ROCKS IN THE STRUCTURE OF THE YENISEI-KHATANGA TROUGH AND THEIR BELONGING TO THE SIBERIAN TRAP PROVINCE |
| title_full_unstemmed | GEOCHEMICAL CHARACTERISTICS OF MAFIC ROCKS IN THE STRUCTURE OF THE YENISEI-KHATANGA TROUGH AND THEIR BELONGING TO THE SIBERIAN TRAP PROVINCE |
| title_short | GEOCHEMICAL CHARACTERISTICS OF MAFIC ROCKS IN THE STRUCTURE OF THE YENISEI-KHATANGA TROUGH AND THEIR BELONGING TO THE SIBERIAN TRAP PROVINCE |
| title_sort | geochemical characteristics of mafic rocks in the structure of the yenisei khatanga trough and their belonging to the siberian trap province |
| topic | siberian traps magmatism sills dikes yenisei-khatanga trough geochemistry trace elements seismic profiling seismic geological model |
| url | https://www.gt-crust.ru/jour/article/view/1817 |
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