Matches in SemOpenAlex for { <https://semopenalex.org/work/W2540803433> ?p ?o ?g. }
- W2540803433 endingPage "162" @default.
- W2540803433 startingPage "149" @default.
- W2540803433 abstract "Abstract The tectonic framework of the North China Craton (NCC) during late Archean to early Paleoproterozoic (circa 2.5 Ga) is still lacking comprehensive understanding due to subsequent strong deformation and metamorphic overprinting events. Circa 2.5 Ga magmatic and metamorphic activities are widely spread throughout the NCC, which can be used as an efficient target to better understand the tectonic evolution at this period. In this study, based on a detailed field, structural, geochemical, geochronological and Sm–Nd isotopic study, we focus our work on the Haozhuang granitoids in the Zanhuang Massif located at the eastern margin of the Central Orogenic Belt of the NCC. The granitoids mainly include undeformed pegmatite and granodiorite. One pegmatite and two granodiorite samples yield zircon 207 Pb/ 206 Pb ages of 2513 ± 29 Ma, 2511 ± 36 Ma and 2528 ± 18 Ma, respectively. The granodiorites show metaluminous and shoshonitic to high-K calc-alkaline series characteristics with A-type granite affinity. The circa 2.5 Ga granodiorites have highly negative e Nd (t) values (− 29.22 ~ − 33.12) and T DM model ages between 2671 Ma and 3151 Ma. This work shows clearly, from whole-rock major and trace elements and Sm–Nd isotopic studies, that the Haozhuang granodiorites were derived from partial melting of old and thickened TTG crust rather than mantle sources, and formed in a subduction-related tectonic setting. With geochemical comparison studies to other similar-aged granitic rocks in the Zanhuang Massif, we suggest that these granitic rocks possibly have a certain correlation during the magma evolution. Coupled with our previous geochemical and isotopic studies on circa 2.5 Ga mafic dike swarms, we propose that the similar-aged granitic rocks and mafic dike swarms were produced by an east-dipping subduction polarity reversal event following an arc–continent collision between the Fuping/Wutai island arc and Eastern Block of the NCC above a west-dipping slab. The east-dipping subduction resulted in partial melting of the enriched lithospheric mantle, firstly forming the circa 2.5 Ga mafic dikes inducing the widespread circa 2.5 Ga metamorphism in the Central Orogenic Belt and the Eastern Block, and then the parental magma of these mafic dike swarms heated the old and thickened TTG crust causing the formation of similar-aged granitic rocks at a later stage." @default.
- W2540803433 created "2016-11-04" @default.
- W2540803433 creator A5005349829 @default.
- W2540803433 creator A5029326040 @default.
- W2540803433 creator A5029484872 @default.
- W2540803433 creator A5034226931 @default.
- W2540803433 creator A5036923763 @default.
- W2540803433 creator A5039177320 @default.
- W2540803433 creator A5048020332 @default.
- W2540803433 creator A5078166404 @default.
- W2540803433 date "2017-01-01" @default.
- W2540803433 modified "2023-10-17" @default.
- W2540803433 title "Petrogenesis and geochemistry of circa 2.5 Ga granitoids in the Zanhuang Massif: Implications for magmatic source and Neoarchean metamorphism of the North China Craton" @default.
- W2540803433 cites W1467008107 @default.
- W2540803433 cites W1524759453 @default.
- W2540803433 cites W1964586321 @default.
- W2540803433 cites W1965877271 @default.
- W2540803433 cites W1966700794 @default.
- W2540803433 cites W1967082681 @default.
- W2540803433 cites W1967187468 @default.
- W2540803433 cites W1968445878 @default.
- W2540803433 cites W1968685730 @default.
- W2540803433 cites W1972050587 @default.
- W2540803433 cites W1972295324 @default.
- W2540803433 cites W1974499954 @default.
- W2540803433 cites W1977009842 @default.
- W2540803433 cites W1977431633 @default.
- W2540803433 cites W1977650828 @default.
- W2540803433 cites W1977930002 @default.
- W2540803433 cites W1981749971 @default.
- W2540803433 cites W1982093108 @default.
- W2540803433 cites W1982643597 @default.
- W2540803433 cites W1985647492 @default.
- W2540803433 cites W1987086946 @default.
- W2540803433 cites W1987285420 @default.
- W2540803433 cites W1987737497 @default.
- W2540803433 cites W1988075972 @default.
- W2540803433 cites W1988317790 @default.
- W2540803433 cites W1989945922 @default.
- W2540803433 cites W1990593047 @default.
- W2540803433 cites W1991383121 @default.
- W2540803433 cites W1992214963 @default.
- W2540803433 cites W1993065509 @default.
- W2540803433 cites W1993353895 @default.
- W2540803433 cites W1995938903 @default.
- W2540803433 cites W1997737817 @default.
- W2540803433 cites W2003945995 @default.
- W2540803433 cites W2005030647 @default.
- W2540803433 cites W2006414804 @default.
- W2540803433 cites W2011549988 @default.
- W2540803433 cites W2013222860 @default.
- W2540803433 cites W2017286666 @default.
- W2540803433 cites W2019409833 @default.
- W2540803433 cites W2019758284 @default.
- W2540803433 cites W2020139762 @default.
- W2540803433 cites W2021429804 @default.
- W2540803433 cites W2021704348 @default.
- W2540803433 cites W2022898310 @default.
- W2540803433 cites W2024248666 @default.
- W2540803433 cites W2026287564 @default.
- W2540803433 cites W2032359687 @default.
- W2540803433 cites W2036174339 @default.
- W2540803433 cites W2038631041 @default.
- W2540803433 cites W2038885049 @default.
- W2540803433 cites W2039055868 @default.
- W2540803433 cites W2039145047 @default.
- W2540803433 cites W2039872199 @default.
- W2540803433 cites W2042803182 @default.
- W2540803433 cites W2042991064 @default.
- W2540803433 cites W2043003723 @default.
- W2540803433 cites W2049155381 @default.
- W2540803433 cites W2051007052 @default.
- W2540803433 cites W2052028650 @default.
- W2540803433 cites W2057876276 @default.
- W2540803433 cites W2058086224 @default.
- W2540803433 cites W2059250966 @default.
- W2540803433 cites W2060964635 @default.
- W2540803433 cites W2062637542 @default.
- W2540803433 cites W2064701110 @default.
- W2540803433 cites W2065913574 @default.
- W2540803433 cites W2067623064 @default.
- W2540803433 cites W2070434161 @default.
- W2540803433 cites W2071179138 @default.
- W2540803433 cites W2073369201 @default.
- W2540803433 cites W2073455571 @default.
- W2540803433 cites W2074463249 @default.
- W2540803433 cites W2075964210 @default.
- W2540803433 cites W2078887974 @default.
- W2540803433 cites W2080701581 @default.
- W2540803433 cites W2080824639 @default.
- W2540803433 cites W2081020685 @default.
- W2540803433 cites W2081233705 @default.
- W2540803433 cites W2081309949 @default.
- W2540803433 cites W2081923019 @default.
- W2540803433 cites W2085672146 @default.
- W2540803433 cites W2090183587 @default.
- W2540803433 cites W2093369526 @default.
- W2540803433 cites W2095996880 @default.