Paleozoic tectonic evolution of the eastern Central Asian Orogenic

lt;p>The eastern Central Asian Orogenic Belt (CAOB) in NE China is a key area for investigating continental growth. However, the complexity of its Paleozoic geological history has meant that the tectonic development of this belt is not fully understood. NE China is composed of the Erguna and Jiamusi blocks in the northern and eastern parts and the Xing’an and Songliao-Xilinhot accretionary terranes in the central and southern parts. The Erguna and Jiamusi blocks have Precambrian basements with Siberia and Gondwana affinities, respectively. In contrast, the Xing’an and Songliao-Xilinhot accretionary terranes were formed via subduction and collision processes. These blocks and terranes were separated by the Xinlin-Xiguitu, Heilongjiang, Nenjiang, and Solonker oceans from north to south, and these oceans closed during the Cambrian (ca. 500 Ma), Late Silurian (ca. 420 Ma), early Late Carboniferous (ca. 320 Ma), and Late Permian to Middle Triassic (260–240 Ma), respectively, forming the Xinlin-Xiguitu, Mudanjiang-Yilan, Hegenshan-Heihe, Solonker-Linxi, and Changchun-Yanji suture zones. Two oceanic tectonic cycles took place in the eastern Paleo-Asian Ocean (PAO), namely, the Early Paleozoic cycle involving the Xinlin-Xiguitu and Heilongjiang oceans and the late Paleozoic cycle involving the Nenjiang-Solonker oceans. The Paleozoic tectonic pattern of the eastern CAOB generally shows structural features that trend east-west. The timing of accretion and collision events of the eastern CAOB during the Paleozoic youngs progressively from north to south. The branch ocean basins of the eastern PAO closed from west to east in a scissor-like manner. A bi-directional subduction regime dominated during the narrowing and closure process of the eastern PAO, which led to “soft collision” of tectonic units on each side, forming huge accretionary orogenic belts in central Asia.</p>

Research News----INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES

Late Paleozoic Tectonic Evolution of the Paleo‐Asian Ocean in the Northern Alxa Block (NW China) - Tian - 2020 - Tectonics - Wiley Online Library

Paleozoic tectonic evolution of the eastern Central Asian Orogenic Belt in NE China - ScienceDirect

PDF) Late Paleozoic strike-slip shear zones in eastern central Asia (NW China): New structural and geochronological data

a) Tectonic sketch map of Eurasia showing the location of the Central

Middle–Late Triassic sedimentary provenance of the southern Junggar Basin and its link with the post-orogenic tectonic evolution of Central Asia

Palaeotectonic reconstructions of the Central Asian folded belt in the Silurian Tuvaella and Retziella brachiopod fauna locations

Frontiers Early Jurassic Rare Metal Granitic Pluton of the Central Asian Orogenic Belt in North-Central Mongolia: Tungsten Mineralization, Geochronology, Petrogenesis and Tectonic Implications

A Paleozoic Japan-type subduction-accretion system in the Beishan orogenic collage, China----INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES

The evolution of the Central Asian Orogenic Belt - Article Collections - Gondwana Research - Journal - Elsevier

Paleozoic Subduction‐Accretion in the Southern Central Asian Orogenic Belt: Insights From the Wuwamen Accretionary Complex of the Chinese South Tianshan - Wang - 2022 - Tectonics - Wiley Online Library

Early Paleozoic Tectonic Evolution of the South Tianshan Collisional Belt: Evidence from Geochemistry and Zircon U-Pb Geochronology of the Tie'reke Monzonite Pluton, Northwest China

A late Neoproterozoic to early Paleozoic accretionary orogenic belt in the eastern Central Asian orogenic Belt: Evidence from the Irshi ophiolite mélange in the middle segment of the Great Xing'an Range,Journal of

Paleozoic tectonic evolution of the eastern Central Asian Orogenic Belt in NE China