The c. 1.5–1.3 Ga Wilton package, the upper succession of the greater McArthur Basin, preserves detailed tectono-sedimentary evidence for the Mesoproterozoic evolution of the North Australian Craton (NAC). In addition, it is a valuable global sedimentary repository for the poorly explored Mesoproterozoic. New detrital zircon U–Pb age and Lu–Hf isotope data, collected from multiple, geographically separated, basins that make up the Wilton package, are compiled with previously published data to illuminate the basin evolution. The spatial and temporal variation in sedimentary provenance illustrates two major geographic changes that correspond to continent-scale tectonic convulsions of the NAC during the Mesoproterozoic. The first is shown by the influx of sediment sourced from east and southeast terranes. This is linked to rifting between Proterozoic Australia and Laurentia at c. 1.45 Ga, resulting in the uplift of the eastern margin of the NAC–SAC (South Australian Craton). The second basin geographic change is illustrated by a flux of southerly-sourced detritus that is interpreted to be tectonically driven by the uplift of the southern NAC, during the subduction/closure of the Mirning Ocean at c. 1.32 Ga. Spatially, sediment in the Wilton package is separated into two depositional systems: sedimentary rocks within the Birrindudu Basin, the western component of the Wilton package, have different detrital signatures relative to other Wilton package successions found east of the Daly Waters Fault Zone, in the Beetaloo Sub-basin, the McArthur Basin and the South Nicholson Basin. The Daly Waters Fault Zone is interpreted as an ancient bathymetric high, blocking sediment transport. Although they differ in sources, rocks in both the Birrindudu Basin and the eastern Wilton package record coeval shifts of basin provenance to southern sources. The coherent evolution of basin provenance indicates a consistent tectono-sedimentation history, and links the Birrindudu Basin and the other Wilton successions in a tectonic framework.

中文翻译：

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澳大利亚北部麦克阿瑟盆地中元古代威尔顿包沉积物源和盆地地理的构造控制

这C。1.5-1.3 Ga Wilton 包裹，大麦克阿瑟盆地的上层系，保留了北澳大利亚克拉通 (NAC) 中元古代演化的详细构造沉积证据。此外，它对于探索欠佳的中元古代来说是一个有价值的全球沉积储存库。新的碎屑锆石 U-Pb 年龄和 Lu-Hf 同位素数据是从组成威尔顿包的多个地理上分离的盆地收集的，并与先前公布的数据一起汇编以阐明盆地演化。沉积物源的时空变化说明了与中元古代NAC大陆尺度构造震荡相对应的两个主要地理变化。首先是来自东部和东南部地体的沉积物流入。C. 1.45 Ga，导致 NAC-SAC（南澳大利亚克拉通）东缘隆起。第二个盆地地理变化由来自南方的碎屑流来说明，这被解释为由南北美洲大陆的隆起在构造上驱动，在米尔宁洋的俯冲/闭合期间C。1.32 Ga. 在空间上，Wilton 包中的沉积物分为两个沉积系统： Birrindudu 盆地内的沉积岩，Wilton 包的西部部分，相对于 Daly Waters 断裂带以东发现的其他 Wilton 包序列具有不同的碎屑特征，在 Beetaloo 次盆地、麦克阿瑟盆地和南尼科尔森盆地。戴利水域断层带被解释为一个古老的测深高地，阻碍了沉积物的运输。尽管它们的来源不同，但 Birrindudu 盆地和东部威尔顿包中的岩石记录了盆地物源向南部来源的同时代转移。盆地物源的连贯演化表明了一致的构造-沉积历史，并在构造框架中将 Birrindudu 盆地和其他威尔顿序列联系起来。