#Yedoma is an organic-rich (about 2% carbon by mass) Pleistocene-age #permafrost with ice content of 50–90% by volume.
"The deposits formed due to a combination of aeolian, colluvial, nival, and alluvial deposition and simultaneous ground ice accumulation. [...] The substantial amount of ground ice in Yedoma makes it highly vulnerable to disturbances such as #thermokarst and thermo-erosion processes." https://www.sciencedirect.com/science/article/pii/S0012825217300508?via%3Dihub #climateChange #Siberia #Yukon #Alaska #zombie #Pandoravirus