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This study presents zircon U–Pb ages and geochemical and Sr–Nd isotopic data for acid granites from the Uliastai continental margin, which is located in the Ulaan Tolgoi area of the south‐eastern Central Asian Orogenic Belt (CAOB). Although most samples have similar calc‐alkaline (K2O/Na2O = 0.55–1.70, average of 1.35) and peraluminous (A/CNK = 1.02–1.20 and A/NK = 1.09–1.87) characteristics, the...
A complex of gabbro (with metamorphic pyroxenite xenoliths)–gabbroic diorite–granodiorite was recently discovered in Tongxunlian, Xilinhot city, Inner Mongolia. Zircon U–Pb isotopic dating showed that the gabbro and the granodiorite were formed ca. 319 ± 1 Ma and ca. 318 ± 1 Ma respectively, indicating that emplacement of the composite rocks occurred in the late Carboniferous. Positive εHf(t) values...
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