This work presents the results of the isotope dating of detrital zircons from sandstones of the Bratsk (O3), Kezhemskaya (S1), and Baeronovka (C1) formations of the sedimentary cover of the southwestern part of the Siberian Platform. It was established that Paleoproterozoic igneous and metamorphic complexes of the Siberian Platform basement with ages of 2.00–1.85 Ga were the dominant source of the clastic material. The Central Asian Orogenic Belt, namely, rock complexes with age of 490–450 Ma, was a second important source of the clastic material. Furthermore, it was noted that the age spectra obtained for detrital zircons from rocks of the Siberian Platform sedimentary cover reflect two global orogenic events: the Paleoproterozoic one, which is responsible for the formation of the most ancient cratons, including the Siberian one, and the Early Paleozoic one, marking the beginning of the development of one of the largest orogenic structures of the world (Central Asian Orogenic Belt).

中文翻译：

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西南西伯利亚地台古生代沉积层序碎屑锆石U-Pb年龄作为古元古代和早古生代造山事件的证据

这项工作展示了西伯利亚台地西南部分沉积盖层的布拉茨克 (O3)、凯泽姆斯卡亚 (S1) 和巴罗诺夫卡 (C1) 地层砂岩中碎屑锆石的同位素测年结果。确定西伯利亚台地基底古元古代火成岩和变质杂岩体的年龄为 2.00-1.85 Ga 是碎屑物质的主要来源。中亚造山带，即年龄为 490-450 Ma 的岩石复合体，是碎屑物质的第二重要来源。此外，还注意到从西伯利亚台地沉积盖层岩石中获得的碎屑锆石的年龄谱反映了两个全球造山事件：古元古代一次，它负责形成最古老的克拉通，包括西伯利亚的克拉通，