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• W2991227524 endingPage "1536" @default.
• W2991227524 startingPage "1514" @default.
• W2991227524 abstract "Abstract Two Cretaceous granitoid belts (i.e., the northwest and southeast belts) have been identified in Zhejiang, northeast South China Block. In this study, seven granitoid plutons from both the two belts were collected for zircon U-Pb dating, whole-rock geochemistry, Sr-Nd isotope, and zircon Hf isotope analyses. Chronologically, the Longyou (132 Ma), Sucun (136 Ma), Shanghekou (131 Ma), and Huangshitan (ca. 126 Ma) plutons from the northwest belt display older magma crystallization age than those of the Xiaoxiong (100 Ma), Zhujiajian (108 Ma), and Qingbang island (108 Ma) plutons from the southeast belt. The Sucun quartz monzonite and the Longyou, Shanghekou, Zhujiajian, and Qingbang island granites therein are fractionated I-type granites (i.e., partial melting of meta-igneous rocks) with relatively moderate-low Zr saturation temperature (723–823 °C) and pronouncedly evolved Nd and Hf isotopic compositions (εNd(t) = –8.17 to –5.67 and εHf(t) = –15.07 to –5.67), indicating that they are derivatives of ancient crustal melt-dominated magmas. The Huangshitan granite shows A-type granitic (i.e., granites that are alkaline and anhydrous and from anorogenic setting) features with high Ga/Al (3.47–5.58), rare earth element (REE) content (271–402 ppm), and Zr saturation temperature (781–889 °C). It holds less enriched Nd and Hf isotopic compositions (εNd(t) = –4.13 to –3.60 and εHf(t) = –5.90 to –2.16) and is attributed to partial melting of mature crustal materials with minor basaltic magma incorporation. The Xiaoxiong (quartz) syenitic porphyry is characterized by moderate SiO2 content (60.68–69.92 wt%), high alkali (9.03–11.66 wt%) and REE contents with fractionated REE pattern [(La/Yb)N = 13.8–26.1]. Its relatively depleted Nd and Hf isotopic compositions (εNd(t) = –3.67 to –3.42 and εHf(t) = –5.76 to –2.25) imply that it could be a derivative of basaltic magma from K-rich metasomatized mantle. Available geochronological data indicate that there were two episodic magmatic pulses at ca. 140–120 Ma and ca. 110–85 Ma associated with the Paleo-Pacific Plate underthrusting beneath the northeast South China Block. Here we put forward an episodic slab retreat and roll-back model to account for generation of these magmatic rocks. Firstly, the subducting Paleo-Pacific slab roll-back initiated at ca. 140 Ma and reached climax at ca. 130–120 Ma, which led to formation of the Longyou, Sucun, and Shanghekou I-type granites and the Huangshitan A-type granite, respectively. Subsequently, a flat slab subduction stage occurred with eastward trench retreat, causing a period of magmatic quiescence from ca. 120 to 110 Ma. The following second slab roll-back started at ca. 110 Ma and reached climax at ca. 100 Ma, giving rise to the earlier Zhujiajian and Qingbang island I-type granites and the later Xiaoxiong (quartz) syenitic porphyry." @default.
• W2991227524 created "2019-12-05" @default.
• W2991227524 creator A5033351939 @default.
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• W2991227524 creator A5088107743 @default.
• W2991227524 creator A5089837115 @default.
• W2991227524 date "2019-11-20" @default.
• W2991227524 modified "2023-10-16" @default.
• W2991227524 title "Petrogenesis of the Cretaceous granitoids in Zhejiang, northeast South China Block and their implications for episodic retreat and roll-back of the Paleo-Pacific Plate" @default.
• W2991227524 cites W1475468184 @default.
• W2991227524 cites W1525258218 @default.
• W2991227524 cites W1553100798 @default.
• W2991227524 cites W1890112748 @default.
• W2991227524 cites W1969262468 @default.
• W2991227524 cites W1971685925 @default.
• W2991227524 cites W1974029105 @default.
• W2991227524 cites W1974139385 @default.
• W2991227524 cites W1974499954 @default.
• W2991227524 cites W1976707472 @default.
• W2991227524 cites W1977068211 @default.
• W2991227524 cites W1977497742 @default.
• W2991227524 cites W1977650828 @default.
• W2991227524 cites W1981687636 @default.
• W2991227524 cites W1982093108 @default.
• W2991227524 cites W1986067309 @default.
• W2991227524 cites W1987285420 @default.
• W2991227524 cites W1991202690 @default.
• W2991227524 cites W1991575260 @default.
• W2991227524 cites W1993508534 @default.
• W2991227524 cites W1996035531 @default.
• W2991227524 cites W1996489529 @default.
• W2991227524 cites W1998302453 @default.
• W2991227524 cites W2000795509 @default.
• W2991227524 cites W2001365371 @default.
• W2991227524 cites W2003954276 @default.
• W2991227524 cites W2004530198 @default.
• W2991227524 cites W2011548702 @default.
• W2991227524 cites W2012942710 @default.
• W2991227524 cites W2013803090 @default.
• W2991227524 cites W2013864655 @default.
• W2991227524 cites W2015961036 @default.
• W2991227524 cites W2017722262 @default.
• W2991227524 cites W2019034794 @default.
• W2991227524 cites W2020973699 @default.
• W2991227524 cites W2022505318 @default.
• W2991227524 cites W2024337096 @default.
• W2991227524 cites W2027819494 @default.
• W2991227524 cites W2029113901 @default.
• W2991227524 cites W2029184354 @default.
• W2991227524 cites W2031732228 @default.
• W2991227524 cites W2033683037 @default.
• W2991227524 cites W2035166740 @default.
• W2991227524 cites W2037281537 @default.
• W2991227524 cites W2039872199 @default.
• W2991227524 cites W2040720309 @default.
• W2991227524 cites W2042803182 @default.
• W2991227524 cites W2042991064 @default.
• W2991227524 cites W2043832579 @default.
• W2991227524 cites W2044911516 @default.
• W2991227524 cites W2046404313 @default.
• W2991227524 cites W2046488984 @default.
• W2991227524 cites W2046961523 @default.
• W2991227524 cites W2050382122 @default.
• W2991227524 cites W2052497225 @default.
• W2991227524 cites W2053396208 @default.
• W2991227524 cites W2054612509 @default.
• W2991227524 cites W2058019619 @default.
• W2991227524 cites W2058314706 @default.
• W2991227524 cites W2061469730 @default.
• W2991227524 cites W2061837047 @default.
• W2991227524 cites W2064701110 @default.
• W2991227524 cites W2071918766 @default.
• W2991227524 cites W2074233105 @default.
• W2991227524 cites W2074324100 @default.
• W2991227524 cites W2076143345 @default.
• W2991227524 cites W2076771894 @default.
• W2991227524 cites W2080325016 @default.
• W2991227524 cites W2081309949 @default.
• W2991227524 cites W2085691334 @default.
• W2991227524 cites W2090137940 @default.
• W2991227524 cites W2090206242 @default.
• W2991227524 cites W2091489546 @default.
• W2991227524 cites W2099138418 @default.
• W2991227524 cites W2100832894 @default.
• W2991227524 cites W2103583542 @default.
• W2991227524 cites W2115087208 @default.
• W2991227524 cites W2117431345 @default.
• W2991227524 cites W2124044757 @default.
• W2991227524 cites W2132478757 @default.
• W2991227524 cites W2140093647 @default.
• W2991227524 cites W2144441523 @default.
• W2991227524 cites W2151482982 @default.
• W2991227524 cites W2153590446 @default.
• W2991227524 cites W2155838580 @default.
• W2991227524 cites W2164404719 @default.
• W2991227524 cites W2167856052 @default.

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