The closure time of the easternmost segment of the Solonker-Xar Moron-Changchun-Yanji Suture: determined by the Yangjin’gou Granite Porphyry in the Hunchun Region, northeast China

The timing of closure of the paleo-Asian Ocean in northeastern China remains contentious. To investigate this problem and better constrain the final closure time of the paleo-Asian Ocean, we report the geochemical characteristics, zircon U-Pb chronology, and Hf isotopes of the Yangjin’gou granite porphyry in the Hunchun region in the easternmost segment of the Solonker- Xar Moron-Changchun-Yanji Suture (SXCYS). The zircon U-Pb age of the...