U–Pb dating of detrital zircons (DZ) in Quaternary slope deposits (cover beds) and examination of the surface structure of single zircon grains may enable reconstruction of the provenance of their aeolian components and help to reconstruct sedimentary palaeo‐transportation cascades. We distinguish several layers of slope deposits (cover beds) using a palaeosol‐supported sequence‐stratigraphic approach. In a pilot study, we demonstrate the usability of using end‐member‐modelled analyses of grain sizes to identify the aeolian matter, multi‐dimensional scaling and density functions (probability density functions (PDF) and Kernel density estimations (KDE)) of the U–Pb data, and the grain morphology of DZ, and show that the age and appearance variation of DZ in the Great Basin differ remarkably from those of the Colorado Plateau.

中文翻译：

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使用U–Pb测年的第四纪盖层锆石物源：美国西南部的区域差异

第四纪斜坡沉积物（覆盖层）中碎屑锆石（DZ）的U–Pb年代测定以及单个锆石晶粒的表面结构检查可能有助于重建其风积成分的来源，并有助于重建沉积古运输级联。我们使用古土壤支持的层序地层学方法区分了几层斜坡沉积物（覆盖层）。在一项试点研究中，我们证明了使用最终成员建模的晶粒尺寸分析来识别风积物，多维标度和密度函数（概率密度函数（PDF）和内核密度估计（KDE））的可用性。 U–Pb数据以及DZ的晶粒形态，表明大盆地DZ的年龄和外观变化与科罗拉多高原的年龄和外观变化显着不同。