Matches in SemOpenAlex for { <https://semopenalex.org/work/W4297399528> ?p ?o ?g. }
- W4297399528 endingPage "106886" @default.
- W4297399528 startingPage "106886" @default.
- W4297399528 abstract "Paleogene potassium-rich volcanic rocks (PVRs) are widespread in the southeastern Tibetan Plateau, providing an opportunity to illustrate the architecture of the lithosphere and further constrain the development of the SE Plateau. Their petrogenesis, together with the geodynamic mechanism, remains in dispute. Mg isotopic compositions of the PVRs in western Yangtze Craton, along with new elemental and Sr-Nd-Pb isotopic data, are utilized to elucidate their petrogenesis and reveal the plausible metasomatic and genetic mechanisms. The PVRs give a compositional spectrum from basaltic trachyandesite to trachyte and are characterized by high large ion lithophile elements concentrations, negative anomalies in high field strength elements, and enriched Sr-Nd-Pb isotopes, suggesting an origin of enriched lithospheric mantle. The correlations among varying major oxides and fractional crystallization simulation results jointly reveal fractional crystallization of olivine and clinopyroxene in the magmatic process. The less-evolved PVRs present similar major oxide contents (e.g., Ti, Na, K) to those melts originated from carbonated peridotite + silicate sediment. Apart from enriched Sr-Nd-Pb isotopes, they also show high La/Yb ratios (11.73–58.95), low Ti/Ti* (0.08–0.71), Hf/Sm (mostly <0.70), and varying δ26Mg values (−0.13 to −0.36‰). Combined with the Sr-Nd-Mg isotope numerical simulations, it points out that the mantle source of the PVRs was replenished by a hybrid carbonate-silicic sediment, which was plausibly caused by the Neoproterozoic seafloor subduction. These volcanic rocks also present relatively high K2O (3.29–7.50 wt%) and K2O/Na2O ratios (1.00–2.85). Besides, varying elevated Rb/Sr and low Ba/Rb ratios, together with the La/Yb-Yb non-modal batch melting result, suggest that the enriched mantle source recorded by these PVRs is predominantly constituted by a hybrid phlogopite-bearing garnet-spinel lherzolite. Constrained by petrology studies and seismic tomography, the generation of the PVRs is proposed to be closely associated with the delamination of the thickened lithosphere and thereafter asthenosphere upwelling." @default.
- W4297399528 created "2022-09-28" @default.
- W4297399528 creator A5009120562 @default.
- W4297399528 creator A5034282664 @default.
- W4297399528 creator A5038170876 @default.
- W4297399528 creator A5044099242 @default.
- W4297399528 creator A5056036725 @default.
- W4297399528 creator A5056835744 @default.
- W4297399528 creator A5057024119 @default.
- W4297399528 creator A5057902551 @default.
- W4297399528 creator A5072315367 @default.
- W4297399528 creator A5077674549 @default.
- W4297399528 creator A5083164115 @default.
- W4297399528 creator A5090951888 @default.
- W4297399528 date "2022-11-01" @default.
- W4297399528 modified "2023-10-15" @default.
- W4297399528 title "Petrogenesis of the Paleogene potassium-rich volcanic rocks in the western Yangtze Craton, southeastern Tibetan Plateau" @default.
- W4297399528 cites W1534749586 @default.
- W4297399528 cites W1744428698 @default.
- W4297399528 cites W1899171572 @default.
- W4297399528 cites W1965410050 @default.
- W4297399528 cites W1973182365 @default.
- W4297399528 cites W1977091278 @default.
- W4297399528 cites W1984094358 @default.
- W4297399528 cites W1992117512 @default.
- W4297399528 cites W1994014047 @default.
- W4297399528 cites W1996141548 @default.
- W4297399528 cites W2000169692 @default.
- W4297399528 cites W2005434276 @default.
- W4297399528 cites W2013259970 @default.
- W4297399528 cites W2019748000 @default.
- W4297399528 cites W2022364310 @default.
- W4297399528 cites W2034601870 @default.
- W4297399528 cites W2035415466 @default.
- W4297399528 cites W2041455558 @default.
- W4297399528 cites W2046897746 @default.
- W4297399528 cites W2047197891 @default.
- W4297399528 cites W2047567126 @default.
- W4297399528 cites W2050577824 @default.
- W4297399528 cites W2054564274 @default.
- W4297399528 cites W2057498811 @default.
- W4297399528 cites W2057928940 @default.
- W4297399528 cites W2058914128 @default.
- W4297399528 cites W2067270209 @default.
- W4297399528 cites W2067336738 @default.
- W4297399528 cites W2069611499 @default.
- W4297399528 cites W2077011553 @default.
- W4297399528 cites W2078643322 @default.
- W4297399528 cites W2078840355 @default.
- W4297399528 cites W2081673195 @default.
- W4297399528 cites W2082461046 @default.
- W4297399528 cites W2088176011 @default.
- W4297399528 cites W2110129020 @default.
- W4297399528 cites W2121798167 @default.
- W4297399528 cites W2122699992 @default.
- W4297399528 cites W2128507415 @default.
- W4297399528 cites W2136039128 @default.
- W4297399528 cites W2137086129 @default.
- W4297399528 cites W2138522501 @default.
- W4297399528 cites W2140136526 @default.
- W4297399528 cites W2161188118 @default.
- W4297399528 cites W2161311537 @default.
- W4297399528 cites W2163393460 @default.
- W4297399528 cites W2170511802 @default.
- W4297399528 cites W220726169 @default.
- W4297399528 cites W2280017285 @default.
- W4297399528 cites W2298474740 @default.
- W4297399528 cites W244123547 @default.
- W4297399528 cites W2583399403 @default.
- W4297399528 cites W2588613439 @default.
- W4297399528 cites W2599374089 @default.
- W4297399528 cites W2756131936 @default.
- W4297399528 cites W2773595050 @default.
- W4297399528 cites W2790699507 @default.
- W4297399528 cites W2799793667 @default.
- W4297399528 cites W2887315661 @default.
- W4297399528 cites W2930553564 @default.
- W4297399528 cites W2942899716 @default.
- W4297399528 cites W2955111635 @default.
- W4297399528 cites W2956682704 @default.
- W4297399528 cites W2969884952 @default.
- W4297399528 cites W2971204325 @default.
- W4297399528 cites W3007631753 @default.
- W4297399528 cites W3013381760 @default.
- W4297399528 cites W3038553530 @default.
- W4297399528 cites W3111908487 @default.
- W4297399528 cites W4245638129 @default.
- W4297399528 doi "https://doi.org/10.1016/j.lithos.2022.106886" @default.
- W4297399528 hasPublicationYear "2022" @default.
- W4297399528 type Work @default.
- W4297399528 citedByCount "1" @default.
- W4297399528 countsByYear W42973995282023 @default.
- W4297399528 crossrefType "journal-article" @default.
- W4297399528 hasAuthorship W4297399528A5009120562 @default.
- W4297399528 hasAuthorship W4297399528A5034282664 @default.
- W4297399528 hasAuthorship W4297399528A5038170876 @default.
- W4297399528 hasAuthorship W4297399528A5044099242 @default.
- W4297399528 hasAuthorship W4297399528A5056036725 @default.