FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4387079176> ?p ?o ?g. }

• W4387079176 endingPage "107368" @default.
• W4387079176 startingPage "107368" @default.
• W4387079176 abstract "The southern Qiangtang subterrane (SQT) in central Tibet is characterized by sporadic Late Cretaceous magmatic rocks whose petrogenesis and tectonic implications remain unclear. Here, new zircon UPb ages and Hf isotope compositions, together with whole-rock element and isotope data have been collected for the Duoma volcanic rocks from the SQT, central Tibet. Zircon UPb dating indicates that the Duoma volcanic rocks crystallized at ca. 98 Ma. The basalts of the Duoma volcanic rocks have low SiO2 (51.49–53.36 wt%), high total alkalis (4.65–6.25 wt%), and display OIB-like isotopic signatures (87Sr/86Sr)i = 0.7051 to 0.7058, εNd(t) = +0.04 to +1.10), overall similar to intra-plate alkali basalts. Moreover, basalts exhibit slight depletion of high-field-strength elements (HFSEs; e.g., Nb, Ta, and Ti), but enrichment of light rare earth (LaN/YbN = 6.7–7.6) with no negative Eu anomalies (Eu/Eu* = 0.91–0.99). These geochemical features, together with their high La/Nb (1.56–1.70) and Zr/Hf (44.70–45.87) but low La/Ba (0.08–0.09) and Ca/Al (0.43–0.65) ratios, suggest that the Duoma basalts originated from partial melting of garnet clinopyroxenite that was metasomatized by depleted mantle-derived melts. The coexisting rhyolites have high SiO2 (69.78–69.92 wt%) and exhibit significant enrichment in large-ion lithophile elements (LILEs) and depletion in HFSEs (Nb, Ta, and Ti). Furthermore, the Duoma rhyolites are characterized by the decoupled Nd (εNd(t) values ranging from −4.4 to −11.1) and Hf (ɛHf(t) values ranging from −0.7 to +2.7) isotopic compositions, that character indicates that they were probably derived from the partial melting of the continental lower crust. The compositional bimodality and heterogeneous source of the Late Cretaceous volcanism indicate that they were formed in an extension setting, presumably triggered by lithospheric delamination beneath the SQT." @default.
• W4387079176 created "2023-09-28" @default.
• W4387079176 creator A5001516130 @default.
• W4387079176 creator A5010940438 @default.
• W4387079176 creator A5038111698 @default.
• W4387079176 creator A5051014992 @default.
• W4387079176 creator A5073959328 @default.
• W4387079176 creator A5081444035 @default.
• W4387079176 date "2023-12-01" @default.
• W4387079176 modified "2023-10-09" @default.
• W4387079176 title "Late Cretaceous bimodal volcanic rocks in Shuanghu County induced by lithospheric delamination beneath the Southern Qiangtang subterrane, Tibet" @default.
• W4387079176 cites W1064157222 @default.
• W4387079176 cites W1521262137 @default.
• W4387079176 cites W1529815382 @default.
• W4387079176 cites W1579639380 @default.
• W4387079176 cites W1933526536 @default.
• W4387079176 cites W1941456882 @default.
• W4387079176 cites W1967688833 @default.
• W4387079176 cites W1967910599 @default.
• W4387079176 cites W1969859799 @default.
• W4387079176 cites W1970363584 @default.
• W4387079176 cites W1971005311 @default.
• W4387079176 cites W1974731988 @default.
• W4387079176 cites W1982874785 @default.
• W4387079176 cites W1983991055 @default.
• W4387079176 cites W1995942773 @default.
• W4387079176 cites W1998621819 @default.
• W4387079176 cites W2002460023 @default.
• W4387079176 cites W2003446684 @default.
• W4387079176 cites W2003948785 @default.
• W4387079176 cites W2004810768 @default.
• W4387079176 cites W2005195754 @default.
• W4387079176 cites W2005769501 @default.
• W4387079176 cites W2009280724 @default.
• W4387079176 cites W2016760315 @default.
• W4387079176 cites W2019034794 @default.
• W4387079176 cites W2019748000 @default.
• W4387079176 cites W2023563727 @default.
• W4387079176 cites W2035595872 @default.
• W4387079176 cites W2038979071 @default.
• W4387079176 cites W2039326681 @default.
• W4387079176 cites W2039872199 @default.
• W4387079176 cites W2042407855 @default.
• W4387079176 cites W2045763769 @default.
• W4387079176 cites W2047912113 @default.
• W4387079176 cites W2047938785 @default.
• W4387079176 cites W2049454394 @default.
• W4387079176 cites W2051402261 @default.
• W4387079176 cites W2060795343 @default.
• W4387079176 cites W2061896955 @default.
• W4387079176 cites W2062218969 @default.
• W4387079176 cites W2065520860 @default.
• W4387079176 cites W2067685960 @default.
• W4387079176 cites W2068157565 @default.
• W4387079176 cites W2068668821 @default.
• W4387079176 cites W2070071554 @default.
• W4387079176 cites W2074099721 @default.
• W4387079176 cites W2076724145 @default.
• W4387079176 cites W2081673195 @default.
• W4387079176 cites W2084998053 @default.
• W4387079176 cites W2088496938 @default.
• W4387079176 cites W2090446100 @default.
• W4387079176 cites W2097103166 @default.
• W4387079176 cites W2099243038 @default.
• W4387079176 cites W2102081901 @default.
• W4387079176 cites W2102705358 @default.
• W4387079176 cites W2114856901 @default.
• W4387079176 cites W2115518283 @default.
• W4387079176 cites W2117683602 @default.
• W4387079176 cites W2125654971 @default.
• W4387079176 cites W2128209044 @default.
• W4387079176 cites W2133042542 @default.
• W4387079176 cites W2139827677 @default.
• W4387079176 cites W2141553479 @default.
• W4387079176 cites W2142319362 @default.
• W4387079176 cites W2143575325 @default.
• W4387079176 cites W2144625273 @default.
• W4387079176 cites W2145087726 @default.
• W4387079176 cites W2145191782 @default.
• W4387079176 cites W2151685608 @default.
• W4387079176 cites W2156920669 @default.
• W4387079176 cites W2157801962 @default.
• W4387079176 cites W2165074973 @default.
• W4387079176 cites W2167782460 @default.
• W4387079176 cites W2205343350 @default.
• W4387079176 cites W2312828419 @default.
• W4387079176 cites W2324661783 @default.
• W4387079176 cites W2412766254 @default.
• W4387079176 cites W2491226624 @default.
• W4387079176 cites W2509822361 @default.
• W4387079176 cites W2546673590 @default.
• W4387079176 cites W2560829777 @default.
• W4387079176 cites W2561129996 @default.
• W4387079176 cites W2658192030 @default.
• W4387079176 cites W2769181414 @default.
• W4387079176 cites W2793250924 @default.
• W4387079176 cites W2902793496 @default.
• W4387079176 cites W2919656929 @default.

• next