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The late Mesozoic magmatism and associated ore deposits were extensively developed in the southern Great Xing'an Range (SGXR), northeastern China. The geodynamic evolution of the SGXR during the late Mesozoic, however, remains controversial. Here, we present new detrital zircon U–Pb and Hf isotopic data of the Late Cretaceous sandstones of the Yaojia and Qingshankou formations from the southwestern...
The ages and source of Late Cretaceous mafic dolerite dykes of the Songliao Basin were determined using geochronological, geochemical, zircon Hf, whole‐rock Sr–Nd isotopic, and zircon fission tract. The results show that (a) petrographic data reveal doleritic, poikiloblastic textures, and amygdale structures of the dolerite dykes. (b) LA‐MC‐ICP‐MS U–Pb analysis of zircons yielded an age of 70.0 ± 3...
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