| Citation: | Jingjie Jin, Xin Qian, Vongpaseuth Senebouttalath, Yuzhi Zhang, Yuejun Wang. Provenance and Paleogeographic Evolution of the Upper Paleozoic–Lower Mesozoic Strata in Northern Laos. Journal of Earth Science, 2025, 36(3): 861-879. doi: 10.1007/s12583-024-0011-6
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The Late Paleozoic–Early Mesozoic sedimentary system of the Luang Prabang Paleotethyan back-arc basin in northern Laos is important for investigating sedimentary provenance, paleogeographic patterns, and the tectonic evolution of the eastern Paleotethyan Ocean. This study presents systematic stratigraphy, petrology, geochemistry, and detrital zircon U-Pb-Hf isotopic analyses for the Late Carboniferous–Jurassic sedimentary strata on both sides of the Luang Prabang Basin. Based on distinct stratigraphic ages and provenance characteristics, the clastic rock samples can be divided into four groups. The Group 1 Late Carboniferous–Early Permian samples from the western part of the basin yield detrital zircon age-peaks of ~348 and ~1 425 Ma, with corresponding
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