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The final closure of the Junggar–Balkhash Ocean resulted in the amalgamation of the circum‐Balkash–Junggar segments of the south‐western Central Asian Orogenic Belt, but the exact timing of its closure remains uncertain. Here, we use zircon U–Pb and whole‐rock chemical data for the adakitic rocks and fractionated I‐type granitoids in the Alashankou area of the southern West Junggar terrane (WJT) to...
A tight constraint on the closure time of the Irtysh–Zaysan Ocean, a major southwestern branch of the Paleo‐Asian Ocean, is crucial for understanding the final amalgamation of the Central Asian Orogenic Belt; however, no agreement has been reached. This study presents new zircon U–Pb ages and whole‐rock geochemical data for the Keluke composite pluton in the Zharma–Saur arc of the northern West Junggar...
The Paleozoic accretionary orogenesis and continental crustal growth in Central Asia are thought to have close relationship with the evolution of the Paleo-Asian Ocean (PAO). The well-exposed plutons in the northern Barleik Mountains of the West Junggar region, NW China, may provide essential insights into the evolution of the Junggar Ocean, a branch of the PAO, and mechanism of continental crustal...
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