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Jian Xu; Xiao-Ping Xia; Qiang Wang; Christopher J. Spencer; Bin He . Abstract: The mechanisms and processes by which subducted slab interacted with mantle plume remain controversial, as direct observation of such interaction is difficult to impossible. Compositional heterogeneity of large igneous provinces (LIPs) additionally makes plume-slab interaction hard to detect. Oxygen isotopes are sensitive enough to trace the source of magmas. Here we provide evidence for plume-slab interaction mainly based on in situ zircon Hf-O isotope analyses, as well as whole-rock elemental and Sr-Nd-Hf isotope analyses, on the Late Permian and Early Triassic A-type granites on the margin of the Emeishan LIP in SW China. These granites show typical A-type ....
Hok skis helped me get outside, reconnect with nature and beat the pandemic blues theglobeandmail.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from theglobeandmail.com Daily Mail and Mail on Sunday newspapers.
Evening Update: Kovrig and Spavor to face separate trials in China starting this Friday; Canada-wide drop in COVID-19 hospitalizations and deaths starting to level off, Tam says theglobeandmail.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from theglobeandmail.com Daily Mail and Mail on Sunday newspapers.