Abstract Dikes of intermediate and felsic composition from the area of the Vyun deposit and the Shumnyi occurrence, both of which belong to the Yano–Kolyma gold belt (Northeast Asia), are dated for the first time, with the age of 151–147 Ma (Late Jurassic) based on U–Pb zircon dating (SHRIMP II method). The trace element distribution in the dike rocks is very similar to the previously studied Late Jurassic mafic dikes reported in similar blocks representing fragments of the Siberian Craton margin. Based on this, these dikes can constitute an unified complex. The dikes could have formed from mixed material from enriched and depleted mantle sources, probably in the northeastern part (in modern coordinates) of the Siberian Craton, in the settings of an active continental margin. This event preceded and was contemporaneous to the early (Late Jurassic) stage of the collision between the Siberian Craton and the Kolyma–Omolon superterrane.

中文翻译：

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西伯利亚克拉通东北缘晚侏罗世（151-147 Ma）岩脉岩浆作用

摘要 属于Yano-Kolyma金矿带（东北亚）的Vyun矿床和Shumnyi矿区的中长英质岩脉首次测年，年龄为151-147 Ma （晚侏罗世）基于 U-Pb 锆石测年（SHRIMP II 方法）。岩脉中的微量元素分布与先前研究的晚侏罗世基性岩脉非常相似，这些岩脉在代表西伯利亚克拉通边缘碎片的类似块体中报道。基于此，这些堤防可以构成一个统一的综合体。岩脉可能由来自富集和枯竭地幔源的混合物质形成，可能位于西伯利亚克拉通的东北部（在现代坐标中），处于活动大陆边缘的环境中。