Ground ice, geochemistry and soil properties of permafrost in the McMaster river basin, Resolute Bay, Nunavut, 2018

The dataset was developped to investigate ground ice content in various hydrogeomorphological settings. Each setting provides specific conditions for ground ice formation and accumulation, contributing to create particular permafrost histories. Permafrost cores were used to analyze cryostratigraphy and reconstitute permafrost formation history. The geochemistry was analyzed to understand the effect of different permafrost formation setting and history on the solute content of the ground ice, as these elements should be released during permafrost degradation and as ground ice melts, impacting the freshwater environments and the patchy wetlands.本数据集旨在探究不同水文地貌环境下的地下冰（ground ice）含量。每一类水文地貌环境均为地下冰的形成与富集提供了专属条件，进而塑造了独特的多年冻土（permafrost）演化历史。研究采用冻土岩芯开展冻土地层学（cryostratigraphy）分析，并重建冻土的形成演化历程。同时通过地球化学分析，明晰不同冻土形成环境与演化历史对地下冰溶质含量的影响——在冻土退化及地下冰消融过程中，这些溶质会被释放，进而对淡水环境与斑块状湿地造成影响。