FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2022204890> ?p ?o ?g. }

• W2022204890 endingPage "1126" @default.
• W2022204890 startingPage "1108" @default.
• W2022204890 abstract "Detailed petrology and zircon U–Pb dating data indicate that the Wulong pluton is a zoned granitic intrusive, formed from successive increments of magmas. An age range of at least 30 Ma is recorded from the 225–235 Ma quartz diorite on the pluton margin, the ca. 218 Ma granodiorite in the intermediate zone, and the ca. 207 Ma monzogranite at the pluton center. All the granitoids display evolved Sr–Nd–Pb isotopic compositions, with 87Sr/86Sr(i) of 0.7044–0.7062, unradiogenic Nd (εNd(t) values of − 6.1 to − 3.0, Nd model ages of 1.1–1.3 Ga, and moderately radiogenic Pb compositions (206Pb/204Pb(i) = 17.500–17.872, 207Pb/204Pb(i) = 15.513–15.549, 208Pb/204Pb(i) = 37.743–38.001), in combination with variations in zircon Hf isotopic compositions (with εHf(t) values in each stage span 12 units) and the Hf isotopic model ages of 800–1600 Ma. These features suggest that the granitoids might have been derived from the reworking of an old lower crust, mixed with Paleozoic and Proterozoic materials. The rocks also display an adakitic affinity with Sr (479–973 ppm), high Sr/Y ratios (mostly > 60) and negligible Eu anomalies (Eu/Eu* = 0.78–0.97) but low Rb/Sr ratios, low Y (4.6–17 ppm), HREE (Yb = 0.95–1.7 ppm), Yb/Lu (6–7) and Dy/Yb (1.9–2.4) ratios, suggesting the absence of plagioclase and presence of garnet + amphibole in their residue. Considering a large gap among their crystallization ages, we propose that the geochemical evolution from pluton margin to center was controlled mainly by melting conditions and source compositions rather than fractional crystallization. Mafic enclaves that were hosted in the quartz diorite and granodiorite are mainly syenogabbroic to syenodioritic in composition, and are metaluminous and enriched in LREE and LILEs, but are depleted in HFSE, and display an evolved Sr–Nd–Pb isotopic composition, suggesting that they may have been derived from the partial melting of an enriched mantle lithosphere, which was metasomatized by adakitic melts and fluids from a subducted continental crust. In combination with the results of the Triassic ultra-high pressure metamorphic rocks in the Dabie orogenic belt, we apply a model involving the exhumation of subducted continental crust to explain the formation of the Wulong pluton. At the first stage, a dense and refractory mafic lower crust that was trapped at mantle depth by continental subduction witnessed melting under high temperature conditions to produce the quartz diorite magma, characterized by low SiO2 (60.65–63.98 wt.%) and high TiO2 (0.39–0.86 wt.%). The magma subsequently interacted with mantle peridotite, leading to high Mg# (57–67) and the metasomatism of the overriding mantle wedge. At the second stage, an asthenosphere upwelling that was probably caused by slab break-off at ca. 220 Ma melted the enriched sub-continental lithospheric mantle (SCLM) to produce mafic magmas, represented by the mafic enclaves that are hosted in the quartz and granodiorite, resulting in the partial melting of the shallower subducted crust, and generating the granodiorite that is distinguished by high SiO2 (69.16–70.82 wt.%), high Al2O3 (15.33–16.22 wt.%) and A/CNK values (mostly > 1.05). At the third stage, the final collapse of the Triassic Qinling–Dabie Orogenic Belt at ca. 215–205 Ma caused extensive partial melting of the thickened orogenic lower crust to produce the monzogranite, which is characterized by high SiO2 (67.68–70.29 wt.%), low TiO2 (mostly < 0.35 wt.%) and high Sr/Y ratios of 86–151." @default.
• W2022204890 created "2016-06-24" @default.
• W2022204890 creator A5003317896 @default.
• W2022204890 creator A5015611625 @default.
• W2022204890 creator A5091148425 @default.
• W2022204890 date "2013-11-01" @default.
• W2022204890 modified "2023-10-16" @default.
• W2022204890 title "Multi-stage granitic magmatism during exhumation of subducted continental lithosphere: Evidence from the Wulong pluton, South Qinling" @default.
• W2022204890 cites W1966707406 @default.
• W2022204890 cites W1966833935 @default.
• W2022204890 cites W1967082613 @default.
• W2022204890 cites W1968350159 @default.
• W2022204890 cites W1969083832 @default.
• W2022204890 cites W1973012528 @default.
• W2022204890 cites W1973123239 @default.
• W2022204890 cites W1973125903 @default.
• W2022204890 cites W1973506361 @default.
• W2022204890 cites W1976840700 @default.
• W2022204890 cites W1977559458 @default.
• W2022204890 cites W1979172119 @default.
• W2022204890 cites W1979705656 @default.
• W2022204890 cites W1980453236 @default.
• W2022204890 cites W1980640006 @default.
• W2022204890 cites W1981278331 @default.
• W2022204890 cites W1981756317 @default.
• W2022204890 cites W1983396787 @default.
• W2022204890 cites W1985667662 @default.
• W2022204890 cites W1986275976 @default.
• W2022204890 cites W1987907556 @default.
• W2022204890 cites W1997142214 @default.
• W2022204890 cites W2000326123 @default.
• W2022204890 cites W2001772043 @default.
• W2022204890 cites W2002536374 @default.
• W2022204890 cites W2003454252 @default.
• W2022204890 cites W2005078833 @default.
• W2022204890 cites W2005807431 @default.
• W2022204890 cites W2007054855 @default.
• W2022204890 cites W2012573334 @default.
• W2022204890 cites W2013579065 @default.
• W2022204890 cites W2013857416 @default.
• W2022204890 cites W2019235102 @default.
• W2022204890 cites W2019799984 @default.
• W2022204890 cites W2022859730 @default.
• W2022204890 cites W2023685791 @default.
• W2022204890 cites W2023696126 @default.
• W2022204890 cites W2026722663 @default.
• W2022204890 cites W2034843577 @default.
• W2022204890 cites W2035670944 @default.
• W2022204890 cites W2036116264 @default.
• W2022204890 cites W2037805935 @default.
• W2022204890 cites W2037950492 @default.
• W2022204890 cites W2038904473 @default.
• W2022204890 cites W2044770863 @default.
• W2022204890 cites W2044921168 @default.
• W2022204890 cites W2047364329 @default.
• W2022204890 cites W2053422899 @default.
• W2022204890 cites W2053721096 @default.
• W2022204890 cites W2054312647 @default.
• W2022204890 cites W2055718208 @default.
• W2022204890 cites W2060244969 @default.
• W2022204890 cites W2064992583 @default.
• W2022204890 cites W2065864490 @default.
• W2022204890 cites W2067953374 @default.
• W2022204890 cites W2069675753 @default.
• W2022204890 cites W2073133317 @default.
• W2022204890 cites W2075149957 @default.
• W2022204890 cites W2077385643 @default.
• W2022204890 cites W2081825921 @default.
• W2022204890 cites W2083623123 @default.
• W2022204890 cites W2087647019 @default.
• W2022204890 cites W2087662765 @default.
• W2022204890 cites W2090080717 @default.
• W2022204890 cites W2091099189 @default.
• W2022204890 cites W2097123550 @default.
• W2022204890 cites W2098003873 @default.
• W2022204890 cites W2110736036 @default.
• W2022204890 cites W2111918073 @default.
• W2022204890 cites W2118493083 @default.
• W2022204890 cites W2122332876 @default.
• W2022204890 cites W2124087345 @default.
• W2022204890 cites W2126309541 @default.
• W2022204890 cites W2126710000 @default.
• W2022204890 cites W2127755626 @default.
• W2022204890 cites W2128624170 @default.
• W2022204890 cites W2130426574 @default.
• W2022204890 cites W2132513592 @default.
• W2022204890 cites W2133540785 @default.
• W2022204890 cites W2134099313 @default.
• W2022204890 cites W2135032781 @default.
• W2022204890 cites W2136162288 @default.
• W2022204890 cites W2136613018 @default.
• W2022204890 cites W2144172427 @default.
• W2022204890 cites W2145530459 @default.
• W2022204890 cites W2150819767 @default.
• W2022204890 cites W2152275597 @default.
• W2022204890 cites W2161466829 @default.
• W2022204890 cites W2163801283 @default.
• W2022204890 cites W2164924649 @default.

• next