FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2783859903> ?p ?o ?g. }

• W2783859903 endingPage "180" @default.
• W2783859903 startingPage "41" @default.
• W2783859903 abstract "The formation and evolution of Archean continental crust as well as related crust-mantle geodynamic evolution history are the major focus of Precambrian studies. As one of the oldest cratons in the world, the North China Craton is dominated by late Neoarchean (~2.6–2.5 Ga) geological events. However, it is still hotly debated about the nature of these major episodes of tectonothermal processes, i.e., whether they represent crustal growth or reworking, and how about the geodynamic regimes (plate tectonics or mantle plume setting)? Systematic studies of lithological assemblage of the basement rocks, petrogenesis, and crust-mantle interactions are key to resolve the above issues. In this chapter, we provide geological, petrological, whole-rock geochemical, and zircon U–Pb and Lu–Hf isotopic data for representative late Neoarchean greenstone metavolcanic rocks and granitoid gneisses in the Western Liaoning Province (WLP) along the northern margin of Eastern Block. It is suggested that magmatic precursors of the metavolcanic rocks in the Fuxin greenstone belt were erupted during ~2640–2534 Ma, and they show dominantly positive zircon eHf(t2) values of +2.7 to +9.7. These metavolcanic rocks show chemical affinities to Mid-ocean ridge basalts (MORBs), island arc tholeiitic to calc-alkaline basalts, adakite-like and high magnesium andesites, respectively, and they were considered to have been generated by the partial melting of upwelling asthenospheric mantle beneath an Archean spreading ridge and complex interactions between the depleted mantle wedge lithospheric mantle and slab-derived fluids and melts, respectively. Dioritic to TTG gneisses are the major lithologies in the WLP. They were emplaced during ~2532–2506 Ma, and show intrusive relationships with the metavolcanic rocks, with chiefly positive zircon eHf(t2) values of +1.2 to +8.4. Based on mineral assemblages and chemical features, these granitoid gneisses were subdivided into a high magnesium group (HMG) and a low magnesium group (LMG), which could have been derived from the partial melting of descending oceanic slabs and metabasaltic rocks at the arc root, respectively. Some volume of potassium-rich granitoid gneisses, including granodioritic and monzogranitic rocks with weakly gneissic to massive structures, intruded both the supracrustal metavolcanic rocks and the strongly deformed dioritic to TTG gneisses. They were formed at ~2495 Ma with zircon eHf(t2) values of +0.9 to +7.6, which were suggested to have been produced by the partial melting of metamorphosed felsic to sedimentary rocks under an extensional setting. Most of the above lithologies were subjected to ~2485 Ma regional peak granulite facies and ~2450–2401 Ma retrograde metamorphism. ~2.4–1.7 Ga metamorphic imprints could be ascribed to the middle to late Paleoproterozoic tectonothermal events prevailed along the northern margin of NCC. Accordingly, the Western Liaoning Province experienced complex late Neoarchean subduction-accretion processes from mid-ocean ridge spreading, through initiation and maturation of an intra-oceanic arc system, to the final arc-continent accretion. It records intense ~2.6–2.5 Ga subduction-related crustal growth, and the Archean lithospheric mantle sources beneath the northern margin of NCC could have been transformed from juvenile oceanic lithospheric mantle that was initially formed under the oceanic spreading ridge, and they were subjected to gradual metasomatism by slab-derived fluids and melts. All the above data indicate that intra-oceanic subduction and arc-continent accretion within an accretionary orogen could have been an important mechanism of continental growth along the northwestern margin of Eastern Block in the Neoarchean." @default.
• W2783859903 created "2018-01-26" @default.
• W2783859903 creator A5046635035 @default.
• W2783859903 date "2018-01-01" @default.
• W2783859903 modified "2023-10-02" @default.
• W2783859903 title "Neoarchean Basement Rock Assemblage, Crustal Evolution and Crust-Mantle Interactions of Western Liaoning Province" @default.
• W2783859903 cites W1467008107 @default.
• W2783859903 cites W1593136970 @default.
• W2783859903 cites W1964047299 @default.
• W2783859903 cites W1965877271 @default.
• W2783859903 cites W1967082613 @default.
• W2783859903 cites W1968405128 @default.
• W2783859903 cites W1968445878 @default.
• W2783859903 cites W1968685730 @default.
• W2783859903 cites W1971685925 @default.
• W2783859903 cites W1971912724 @default.
• W2783859903 cites W1972295324 @default.
• W2783859903 cites W1973212983 @default.
• W2783859903 cites W1979705656 @default.
• W2783859903 cites W1980644983 @default.
• W2783859903 cites W1983396787 @default.
• W2783859903 cites W1984210032 @default.
• W2783859903 cites W1986946192 @default.
• W2783859903 cites W1987423017 @default.
• W2783859903 cites W1988497895 @default.
• W2783859903 cites W1988590004 @default.
• W2783859903 cites W1988901849 @default.
• W2783859903 cites W1990593047 @default.
• W2783859903 cites W1991712311 @default.
• W2783859903 cites W1991987220 @default.
• W2783859903 cites W1992214963 @default.
• W2783859903 cites W1992860423 @default.
• W2783859903 cites W1995938903 @default.
• W2783859903 cites W1996836984 @default.
• W2783859903 cites W1998586240 @default.
• W2783859903 cites W2008783408 @default.
• W2783859903 cites W2009643804 @default.
• W2783859903 cites W2011780169 @default.
• W2783859903 cites W2013857416 @default.
• W2783859903 cites W2019425874 @default.
• W2783859903 cites W2020139762 @default.
• W2783859903 cites W2020324113 @default.
• W2783859903 cites W2022859730 @default.
• W2783859903 cites W2023176422 @default.
• W2783859903 cites W2024468238 @default.
• W2783859903 cites W2025991689 @default.
• W2783859903 cites W2026412695 @default.
• W2783859903 cites W2031194632 @default.
• W2783859903 cites W2033885626 @default.
• W2783859903 cites W2035595872 @default.
• W2783859903 cites W2036174339 @default.
• W2783859903 cites W2036261610 @default.
• W2783859903 cites W2038775297 @default.
• W2783859903 cites W2041355898 @default.
• W2783859903 cites W2043003723 @default.
• W2783859903 cites W2044620880 @default.
• W2783859903 cites W2049639781 @default.
• W2783859903 cites W2049894853 @default.
• W2783859903 cites W2051273227 @default.
• W2783859903 cites W2052028650 @default.
• W2783859903 cites W2053721096 @default.
• W2783859903 cites W2055172418 @default.
• W2783859903 cites W2064241548 @default.
• W2783859903 cites W2070255496 @default.
• W2783859903 cites W2072620570 @default.
• W2783859903 cites W2080824639 @default.
• W2783859903 cites W2081163481 @default.
• W2783859903 cites W2081407886 @default.
• W2783859903 cites W2086014962 @default.
• W2783859903 cites W2089035678 @default.
• W2783859903 cites W2090206242 @default.
• W2783859903 cites W2090583264 @default.
• W2783859903 cites W2091031648 @default.
• W2783859903 cites W2091121315 @default.
• W2783859903 cites W2092235841 @default.
• W2783859903 cites W2097415267 @default.
• W2783859903 cites W2101599973 @default.
• W2783859903 cites W2105636247 @default.
• W2783859903 cites W2106348842 @default.
• W2783859903 cites W2107282719 @default.
• W2783859903 cites W2111336887 @default.
• W2783859903 cites W2111713504 @default.
• W2783859903 cites W2129908713 @default.
• W2783859903 cites W2131368249 @default.
• W2783859903 cites W2131545507 @default.
• W2783859903 cites W2138522501 @default.
• W2783859903 cites W2143462115 @default.
• W2783859903 cites W2143566906 @default.
• W2783859903 cites W2145666199 @default.
• W2783859903 cites W2155581823 @default.
• W2783859903 cites W2161188118 @default.
• W2783859903 cites W2164327254 @default.
• W2783859903 cites W2325514473 @default.
• W2783859903 cites W2326981829 @default.
• W2783859903 cites W4211136963 @default.
• W2783859903 cites W4230149348 @default.
• W2783859903 doi "https://doi.org/10.1007/978-981-10-7922-1_3" @default.
• W2783859903 hasPublicationYear "2018" @default.

• next