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Modal, chemical and U–Pb zircon data from Permian sandstones in the central and southern Da Xing'an Mountains (eastern Inner Mongolia, China) constrain, for the first time, plate collision processes between the northern margin of the North China craton and the composite Erguna–Xing'an–Songliao block. The study area is located between the Ondor Sum-Xar Moron and Hegenshan suture zones of the eastern...
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