The eastern Central Asian Orogenic Belt (CAOB) is a natural laboratory for studying and interpreting the evolution of accretionary collages. The CAOB contains several micro-landmasses whose tectonic evolution during the Late Paleozoic–Mesozoic is a matter of debate. Here, we revisited detrital zircon data in relevant areas and present new detrital zircon U–Pb age data from the Hulin Complex and Wandashan Accretionary Complex (consisting of the Raohe and Yuejinshan complexes) in the eastern CAOB. The youngest zircon peak age of mica-quartz schist from the Hulin Complex constrains the timing of deposition to after ∼153.5 Ma. Sandy slate and fine sandstone from the Wandashan Accretionary Complex have youngest ages of ∼135.7 and ∼254.7 Ma, respectively. These data, together with detrital zircon data in the epicontinental eastern CAOB, suggest that there was a transformation from an extensional to convergent tectonic setting in the eastern CAOB around the Late Permian–Early Triassic. The Khanka Massif may have been adjacent to the Songnen and Jiamusi massifs to the west and north respectively, during the Late Paleozoic–Mesozoic. Between the Songnen and Jiamusi massifs, the Mudanjiang Ocean initially opened in the Late Paleozoic and closed after the Late Jurassic (∼153.5 Ma) and produced the Heilongjiang Complex. The Paleo-Yuejinshan back-arc basin underwent extension in the Permian and finally closed after ∼216 Ma, forming the Yuejinshan Complex at ∼210–180 Ma. The Raohe Complex was accreted at ∼169–133 Ma and emplaced at ∼133–131 Ma. The large-scale sinistral strike-slip movement of the Dunmi Fault started later than ∼153.5 Ma and partially displaced the Heilongjiang Complex from the Mudanjiang area to the present-day Hulin Complex. The eastern CAOB was under a superimposed tectonic regime of the Paleo-Pacific Ocean and Paleo-Asian Ocean in the Late Paleozoic.

中亚东部造山带（CAOB）是研究和解释增生拼贴演化的天然实验室。CAOB 包含几个微陆块，它们在晚古生代-中生代的构造演化是一个有争议的问题。在这里，我们重新审视了相关区域的碎屑锆石数据，并展示了来自中华远东虎林杂岩和完达山增生杂岩（包括饶河杂岩和跃进山杂岩）的新碎屑锆石 U-Pb 年龄数据。虎林杂岩云母石英片岩最年轻的锆石峰年龄将沉积时间限制在~153.5 Ma之后。完达山增生杂岩砂质板岩和细砂岩的最年轻年龄分别为~135.7 Ma和~254.7 Ma。这些数据，连同 CAOB 东部陆缘的碎屑锆石数据，表明在晚二叠世-早三叠世前后 CAOB 东部存在从伸展到收敛的构造环境的转变。汉卡地块可能在晚古生代—中生代分别与松嫩地块和佳木斯地块的西部和北部相邻。在松嫩和佳木斯地块之间，牡丹江洋在晚古生代开始张开，在晚侏罗世（～153.5 Ma）之后闭合，产生了黑龙江杂岩体。古-跃进山弧后盆地在二叠纪经历了伸展，最终在～216 Ma后闭合，在～210～180 Ma形成跃进山杂岩。饶河杂岩在~169-133 Ma 被吸积并在~133-131 Ma 就位。盾密断层的大规模左旋走滑运动开始于~153年以后。5 Ma 并将黑龙江杂岩从牡丹江地区部分移至现在的虎林杂岩。CAOB东部在晚古生代处于古太平洋和古亚洲洋叠加构造体制下。