以四川盆地西部上三叠统须家河组的砂岩组分为基础，详细分析该期研究区古地理的演化。
Based on the sandstone compositions analysis of the Upper Triassic Xujiahe Formation in Western Sichuan Basin, the authors tried to discuss the paleogeographic evolution of the study area.
以四川盆地西部上三叠统须家河组的砂岩组分为基础，详细分析该期研究区古地理的演化。
Based on the sandstone compositions analysis of the Upper Triassic Xujiahe Formation in Western Sichuan Basin, the authors tried to discuss the paleogeographic evolution of the study area.
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