Pollen and spores collected from massive ice bodies in northwest Siberia were studied with the aim to provide a cryogenic indication of their origin. We discuss perennial massive ice, which may occur as lenses, layers, or irregular masses in the frozen ground and may be buried or intrasedimental. Pollen assemblages in massive ice deposits of Holocene age indicated a nonglacial origin of the ice. Pollen assemblages from glacial snow cover and snow patches on tundra were analyzed to reveal signs of buried ice. This approach allowed us to assess the nature of several massive ice bodies as intrasedimental and buried, and demonstrated how pollen may be used as an indicator for the origin of massive ice in northwest Siberia.

中文翻译：

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花粉作为西伯利亚西北部大冰块起源的潜在指标

研究了从西伯利亚西北部巨大冰体收集的花粉和孢子，目的是提供其起源的低温指示。我们讨论多年生的大块冰，它可能在冻土中以透镜状、层状或不规则块状出现，并且可能被掩埋或沉积在沉积物中。全新世大量冰沉积物中的花粉组合表明冰的非冰川起源。分析了来自冰川积雪和苔原上积雪的花粉组合，以揭示埋冰的迹象。这种方法使我们能够评估几个大冰体的性质，如沉积内和埋藏，并展示了如何将花粉用作西伯利亚西北部大冰体起源的指标。