Matches in SemOpenAlex for { <https://semopenalex.org/work/W4213252821> ?p ?o ?g. }
- W4213252821 endingPage "178" @default.
- W4213252821 startingPage "154" @default.
- W4213252821 abstract "The precise age of slab rollback of the Paleo-Pacific Plate during Early Cretaceous has been contentious. In this study, we have conducted LA-ICP-MS zircon U-Pb dating, major and trace elements, and Sr-Nd isotopes analyses on the late Early Cretaceous diabase porphyries, andesitic basalts and basanites in the Yanbian area (NE China). Zircon U-Pb dating of basanites, andesitic basalts, and diabase porphyries yielded weighted average ages of 104 ± 1.9 Ma (MSWD = 0.55, n = 5), 106 ± 1.6 Ma (MSWD = 0.68, n = 6), and 111 ± 2 Ma (MSWD = 16, n = 3), respectively. The whole-rock geochemical results indicate that the late Early Cretaceous rocks predominantly belong to the low-K tholeiitic and medium-K calc-alkaline series. The diabase porphyries and andesitic basalts are characterized by large ion lithophile elements (e.g. Ba, K, and Sr) enrichment and high field strength elements (e.g. Nb and Zr) depletion with weak positive Eu anomalies, low initial 87Sr/86Sr ratios (0.70361–0.70394) and high εNd (t) values (5.96–7.87). The tectonic discrimination diagrams show that the diabase porphyries and andesitic basalts formed in the continental Island arc environment related to subduction of the Paleo-Pacific Plate in the late Early Cretaceous. In contrast, the basanites are enriched in Ba, Th, and U and depleted in K, Sr, and Ti, with weak negative Eu anomalies. The basanites display high magnesium values (Mg# = 0.79), which are approaching the primary magma. They have low Ti values (TiO2 = 1.45%) and Al values (A12O3 = 9.98–10.15%) and high Co values (78.1–80.2 ppm) and Ni values (549.5–585.5 ppm). The basanites formed in the intraplate extensional tectonic setting and were the products of lithospheric thinning and mantle upwelling during the late Early Cretaceous. The spatial-temporal relationship of late Early Cretaceous magmatic rocks in NE China suggests a slab rollback from high-angle subduction to low-angle subduction of the Paleo-Pacific Plate at ca. 106 Ma." @default.
- W4213252821 created "2022-02-24" @default.
- W4213252821 creator A5005099924 @default.
- W4213252821 creator A5045046801 @default.
- W4213252821 creator A5068278763 @default.
- W4213252821 creator A5068774014 @default.
- W4213252821 date "2022-02-15" @default.
- W4213252821 modified "2023-09-26" @default.
- W4213252821 title "New ages of Early Cretaceous magmatic rocks in the Yanbian area (NE China): implications for the subduction and slab rollback of the Paleo-Pacific Plate beneath eastern China during Early Cretaceous" @default.
- W4213252821 cites W1104249897 @default.
- W4213252821 cites W1550913970 @default.
- W4213252821 cites W1602057685 @default.
- W4213252821 cites W1705777835 @default.
- W4213252821 cites W1866515555 @default.
- W4213252821 cites W1964909252 @default.
- W4213252821 cites W1965522845 @default.
- W4213252821 cites W1967827341 @default.
- W4213252821 cites W1969029841 @default.
- W4213252821 cites W1974231715 @default.
- W4213252821 cites W1975042776 @default.
- W4213252821 cites W1975759160 @default.
- W4213252821 cites W1979694545 @default.
- W4213252821 cites W1980640006 @default.
- W4213252821 cites W1982005903 @default.
- W4213252821 cites W1983264858 @default.
- W4213252821 cites W1983410499 @default.
- W4213252821 cites W1985957692 @default.
- W4213252821 cites W1988317790 @default.
- W4213252821 cites W1988557437 @default.
- W4213252821 cites W2003348019 @default.
- W4213252821 cites W2004474671 @default.
- W4213252821 cites W2008892826 @default.
- W4213252821 cites W2011501657 @default.
- W4213252821 cites W2013579065 @default.
- W4213252821 cites W2016190794 @default.
- W4213252821 cites W2019273078 @default.
- W4213252821 cites W2021987309 @default.
- W4213252821 cites W2022859730 @default.
- W4213252821 cites W2024427164 @default.
- W4213252821 cites W2025597990 @default.
- W4213252821 cites W2027994059 @default.
- W4213252821 cites W2028824915 @default.
- W4213252821 cites W2028948662 @default.
- W4213252821 cites W2029145846 @default.
- W4213252821 cites W2034928165 @default.
- W4213252821 cites W2038677898 @default.
- W4213252821 cites W2038783755 @default.
- W4213252821 cites W2039085222 @default.
- W4213252821 cites W2040029696 @default.
- W4213252821 cites W2040908727 @default.
- W4213252821 cites W2045345459 @default.
- W4213252821 cites W2052524461 @default.
- W4213252821 cites W2054153355 @default.
- W4213252821 cites W2054765896 @default.
- W4213252821 cites W2059927414 @default.
- W4213252821 cites W2061200728 @default.
- W4213252821 cites W2061359484 @default.
- W4213252821 cites W2061680126 @default.
- W4213252821 cites W2065684465 @default.
- W4213252821 cites W2066651036 @default.
- W4213252821 cites W2069402922 @default.
- W4213252821 cites W2072680255 @default.
- W4213252821 cites W2074557768 @default.
- W4213252821 cites W2078011306 @default.
- W4213252821 cites W2078840355 @default.
- W4213252821 cites W2079872834 @default.
- W4213252821 cites W2081145789 @default.
- W4213252821 cites W2081673195 @default.
- W4213252821 cites W2082667528 @default.
- W4213252821 cites W2084372423 @default.
- W4213252821 cites W2087662765 @default.
- W4213252821 cites W2088096981 @default.
- W4213252821 cites W2090037471 @default.
- W4213252821 cites W2090628301 @default.
- W4213252821 cites W2093159078 @default.
- W4213252821 cites W2095601024 @default.
- W4213252821 cites W2105821699 @default.
- W4213252821 cites W2107541721 @default.
- W4213252821 cites W2108056426 @default.
- W4213252821 cites W2112842178 @default.
- W4213252821 cites W2114552489 @default.
- W4213252821 cites W2116809173 @default.
- W4213252821 cites W2119921571 @default.
- W4213252821 cites W2122490144 @default.
- W4213252821 cites W2123611991 @default.
- W4213252821 cites W2133591813 @default.
- W4213252821 cites W2137335718 @default.
- W4213252821 cites W2138036377 @default.
- W4213252821 cites W2138522501 @default.
- W4213252821 cites W2140496118 @default.
- W4213252821 cites W2157099954 @default.
- W4213252821 cites W2162334444 @default.
- W4213252821 cites W2162997816 @default.
- W4213252821 cites W2163257312 @default.
- W4213252821 cites W2166978438 @default.
- W4213252821 cites W2195332156 @default.
- W4213252821 cites W2216925735 @default.
- W4213252821 cites W2346319398 @default.