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Late Triassic uplift, magmatism and extension of the northern North China block: Mantle signatures in the surface
Meng, Qing-Ren1,2,3; Wu, Guo-Li1,2,3; Fan, Long-Gang1,2,4; Wei, Hong-Hong5; Wang, Erchie2
2020-10-01
Source PublicationEARTH AND PLANETARY SCIENCE LETTERS
ISSN0012-821X
Volume547Pages:9
AbstractThe Late Triassic saw a period of broad uplift, vigorous magmatism and supracrustal stretching in the northern North China block, but the driving mechanism has been uncertain. Previous investigations have mostly dealt with individual tectonic processes, such as petrogenesis of igneous complexes, extensional deformations, or basin development, and the proposed models were aimed to account for some specific processes. This study makes a holistic treatment of Late Triassic denudation, magmatism, and rift basins in an attempt to unravel the driver for these coeval tectonic processes. Late Triassic uplift is registered by a regional disconformity separating Jurassic from Lower-Middle Triassic or older units, and Upper Triassic oligomict conglomerates are suggestive of early-stage peneplanation. The extensive uplift of the northern North China block was also accompanied by the development of the Great Ordos basin in the southern North China block, which exhibits striking southward variation from alluvial/fluvial through deltaic to lacustrine depositional settings. Vigorous magmatism is typified by mantle-sourced alkaline and mafic complexes distributed in an east-west narrow belt. The development of metamorphic core complex and some isolated rift basins is clearly indicative of crustal extension. Spatial variation from coeval island-arc calc-alkaline to backarc bimodal magmatism in the Amurian superterrane hints at southward subduction of the Mongol-Okhotsk plate. All the geologic records point to the plausibility that these synchronous tectonic processes must have been genetically linked and were likely induced by southward subduction of the Mongol-Okhotsk plate. Here, we argue that the Mongol-Okhotsk plate subduction not only triggered arc and backarc magmatism in the Amurian superterrane, but also led to decompression melting and focused upwelling of the upper mantle ahead of the subducting slab beneath the northern North China block. The Late Triassic intraplate extensive uplift, magmatism, and extension in the northern North China block are accordingly interpreted as the signatures of the focused mantle upwelling. (C) 2020 Elsevier B.V. All rights reserved.
KeywordNorth China block Late Triassic denudation magmatism extension mantle upwelling
DOI10.1016/j.epsl.2020.116451
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS KeywordMESOZOIC BASIN DEVELOPMENT ; PALEO-ASIAN OCEAN ; CRATON IMPLICATIONS ; TECTONIC EVOLUTION ; INNER-MONGOLIA ; EASTERN HEILONGJIANG ; LIAODONG PENINSULA ; VOLCANIC-ROCKS ; PACIFIC PLATE ; SLAB ROLLBACK
Language英语
Funding ProjectNational Key R&D Program of China[2016YFC0600406] ; National Natural Science Foundation of China[41702237] ; National Natural Science Foundation of China[91114204]
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000557762500012
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/97597
Collection岩石圈演化国家重点实验室
地球与行星物理院重点实验室
Corresponding AuthorMeng, Qing-Ren
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
5.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Continental Collis & Plateau Uplift, Beijing 100085, Peoples R China
First Author AffilicationState Key Laboratory of Lithospheric Evolution
Corresponding Author AffilicationState Key Laboratory of Lithospheric Evolution
Recommended Citation
GB/T 7714
Meng, Qing-Ren,Wu, Guo-Li,Fan, Long-Gang,et al. Late Triassic uplift, magmatism and extension of the northern North China block: Mantle signatures in the surface[J]. EARTH AND PLANETARY SCIENCE LETTERS,2020,547:9.
APA Meng, Qing-Ren,Wu, Guo-Li,Fan, Long-Gang,Wei, Hong-Hong,&Wang, Erchie.(2020).Late Triassic uplift, magmatism and extension of the northern North China block: Mantle signatures in the surface.EARTH AND PLANETARY SCIENCE LETTERS,547,9.
MLA Meng, Qing-Ren,et al."Late Triassic uplift, magmatism and extension of the northern North China block: Mantle signatures in the surface".EARTH AND PLANETARY SCIENCE LETTERS 547(2020):9.
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