The Singhbhum craton of eastern India preserves an extensive record of basin formation spanning the Paleoarchean to Neoarchean. Although spatially extensive and well exposed, the absolute age, depositional environment, and regional correlations of many of the purportedly Archean basins of this craton remain poorly resolved. We present a detailed lithostratigraphic analysis of siliciclastic strata in the (lower) Simlipal volcano-sedimentary succession and report the first detrital zircon U-Pb ages from this succession. The studied section is dominated by fine- to medium-grained, quartz-rich sandstones, which preserve herringbone stratification, tidal bundles, soft sediment deformation structures along with ubiquitous trough cross-stratification. Petrographic study confirms these sandstones as quartz arenites and reveal their high textural and mineralogical maturity. These features are consistent with deposition of the lower siliciclastic succession of the Simlipal volcano-sedimentary complex within a tidally-influenced marginal marine setting. The new detrital zircon data support a ~3.08 Ga maximum depositional age for the succession and reveal a provenance with age peaks at ca. 3.55–3.45 Ga, 3.38–3.24 Ga, and 3.10–3.08 Ga. These ages likely correspond to local basement sources including the Older Metamorphic Tonalite Gneisses, the Singhbhum Granitoid Complex, and the Mayurbhanj Granite Suite. Two detrital zircons from our dataset have concordant ages of ~4.02 Ga and ~4.03 Ga. They represent the first Hadean detrital zircons recovered from any Archean strata in the Singhbhum craton, documenting the involvement of Hadean crust in the early development of the craton. The detrital zircons show prominent Pb-loss at ~1.2–1.0 Ga that exemplifies the tectonothermal imprint of a late Mesoproterozoic to early Neoproterozoic orogeny (likely related to the assembly of Rodinia) on the Singhbhum craton. Our findings further support the interpretation that the lower siliciclastic strata in the Simlipal succession are the lateral facies equivalents of alluvial fan deposits at the base of the Dhanjori Formation, exposed to the north.

印度东部的Singhbhum克拉通保留了从古古纪到新古纪的盆地形成的广泛记录。尽管空间分布广泛且暴露良好，但该克拉通许多据称是太古宙盆地的绝对年龄，沉积环境和区域相关性仍然难以解决。我们对（下部）西姆利帕尔火山沉积沉积层序中的硅质碎屑岩层进行了详细的岩相地层学分析，并报告了该序列中第一个碎屑锆石U-Pb年龄。所研究的剖面以细到中等粒度的富含石英的砂岩为主，这些砂岩保留了人字形分层，潮汐束，软质沉积物变形结构以及普遍存在的低谷交叉分层现象。岩相学研究证实这些砂岩为石英砂岩，并显示出其较高的质地和矿物学成熟度。这些特征与在受潮汐影响的边缘海洋环境中Simlipal火山-沉积沉积复合体下部硅质碎屑演替的沉积相一致。新的碎屑锆石数据支持该演替的最大沉积年龄为〜3.08 Ga，并且揭示了一个物源，其年龄峰值约为。3.55–3.45 Ga，3.38–3.24 Ga和3.10–3.08 Ga。这些年龄可能对应于当地的地下资源，包括较旧的变质方铅石片麻岩，Singhbhum花岗岩复合体和Mayurbhanj花岗岩套件。我们数据集中的两个碎屑锆石的年龄一致，分别为〜4.02 Ga和〜4.03 Ga。它们代表从Singhbhum克拉通的任何太古宙地层中发现的第一批Hadean碎屑锆石，记录哈德亚地壳在克拉通早期发育中的作用。碎屑锆石在〜1.2–1.0 Ga处显示出明显的Pb损失，这是Singhbhum克拉通中元古生代晚期至新元古代的造山运动（可能与Rodinia的组装有关）的构造热烙印。我们的发现进一步支持了这样的解释，即Simlipal演替的下部硅质碎屑岩层是Dhanjori组底部暴露于北部的冲积扇状沉积的侧相等价物。