Early Paleozoic Tethyan evolution and metallogeny in East Asia

作者：Renyu Zeng, Qingfei Wang, M. Santosh, Mark B. Allen, Hui Su, Peijiao Ju, Ziqi Yuan, You Zhang, Xiaoxuan Zhang, Guangxian Liu · 发表于：Ore Geology Reviews · 年份：2025 · DOI：10.1016/j.oregeorev.2025.106890 · 被引用次数：3 · 研究领域：Geological and Geochemical Analysis、Geochemistry and Geologic Mapping、Hydrocarbon exploration and reservoir analysis

In order to reconstruct the tectonic and metallogenic evolution of the Proto-Tethys tectonic domain, this study presents a comprehensive review of geological, geochemical, and high-precision geochronological datasets of ophiolites, magmatic rocks, metamorphic rocks and ore deposits from the Cambrian to Early Devonian periods, within various tectonic units influenced by the Proto-Tethys Ocean in East Asia. These units include the South China Block, the Central China Orogenic Belt (CCOB), the Qiangtang Block, and the Sanjiang orogenic belt. Our analysis leads to the following main conclusions. (1) There are differences in the subduction patterns of the Proto-Tethys Ocean. On the northwestern side, dextral-oblique subduction of the Proto-Tethys Ocean led to the collision of ribbon continents (“K-Qubed”) with the North China-Tarim continent. At the same time, on the southeastern side of the Proto-Tethys Ocean, oceanic subduction (locally bidirectional) led to the Northern Qiangtang, Indochina and South China blocks (excluding the East Cathaysia Block) moving towards the Gondwana continent, with localized collisions. (2) Branches of the Proto-Tethys Ocean underwent closure during the Early Paleozoic, while other oceans, such as the ocean to the south of the CCOB and the Longmu Co-Shuanghu-Changning-Menglian Ocean, were continuous into the Late Paleozoic, and are regarded as parts of Paleo-Tethys. (3) In the Proto-Tethys tectonic domain, the source of W-mineralized granitoids was p...