Fig. 4From: Thermophysical properties of surficial rocks: a tool to characterize geothermal resources of remote northern regionsTimeline of Pleistocene and Holocene climate events and temperature step. Solid line—temperature during glacial episode assumed as 10 °C colder than today; pointed line—temperature during glacial episode assume 5 °C colder than today; dashed line—temperature during glacial episode 1 °C colder than todayBack to article page