Three intervals of glaciomarine diamictites with extensive glendonites in middle to upper Permian sediments were found in the Kobyume River, southern Verkhoyanie, Russia. The successions are biostratigraphically constrained as middle to upper Permian. The middle Permian diamictite horizons extend over a large area with a lateral distance of >1000 km. The upper Permian diamictites developed only locally. The diamictites are interpreted as glaciomarine sediments containing ice-rafted debris. Two glacial episodes in Siberia temporally correspond to the P3 (middle Permian) and P4 (late Permian) glacial events of eastern Australia, strongly suggesting a global bipolar climate and well-developed climatic belts during the middle to late Permian.

中文翻译：

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北半球澳大利亚东部 P3 和 P4 冰川事件可能的双极全球表现：西伯利亚 Verkhoyanie 南部中二叠纪中上二叠纪的海洋混杂岩和绿棱岩

在俄罗斯 Verkhoyanie 南部的 Kobyume 河中发现了三个冰海混杂岩层段，在二叠纪中上层沉积物中具有广泛的菱辉岩。这些演替在生物地层上被限制在二叠纪中上层。中二叠纪混杂岩层位延伸到横向距离大于 1000 km 的大面积区域。上二叠统混杂岩仅局部发育。混杂岩被解释为含有冰漂碎片的冰川海相沉积物。西伯利亚的两次冰川事件在时间上对应于澳大利亚东部的 P3（二叠纪中）和 P4（二叠纪晚期）冰川事件，强烈表明中二叠世中晚期的全球双极气候和发育良好的气候带。