Abstract：[Objective]The U-Pb age distribution characteristics of detrital heavy minerals serve as a commonly employed and effective method for discriminating tectonic settings. In recent years, the application of cumulative probability curves of detrital zircon U-Pb ages for identifying tectonic settings has gained widespread usage. As a complement to detrital zircon, detrital rutile provides clearer discrimination between convergent and collisional settings. However, the prerequisite for this methodology is the accurate determination of the depositional age of the stratigraphic unit, which remains a challenging aspect in sedimentology and basin analysis. [Methods]Although χ 2-square analysis based on detrital zircon U-Pb age characteristics can effectively identify tectonic settings without relying on depositional age constraints, its application in complex collisional settings has proven inadequate. This study demonstrates that neither detrital zircon nor detrital rutile U-Pb age characteristics, when subjected to χ2-square analysis, can effectively discriminate collisional settings. [Results]Consequently, the exclusive use of any single mineral or methodological approach cannot achieve complete accuracy in determining tectonic settings. Through detailed discussion of the advantages and limitations of detrital zircon and detrital rutile applications in basin tectonic settings discrimination, this study proposes an integrated analytical framework combining U-Pb age characteristics of both detrital minerals with χ2-square analysis. [Conclusion]This comprehensive methodology enables accurate identification of tectonic settings, with particular improvement in the precision of discriminating collisional processes within basin tectonic backgrounds.
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