Fig. 2: Conceptual model of the stratigraphic position and degradation legacy.
From: A globally relevant stock of soil nitrogen in the Yedoma permafrost domain
Conceptual model of the stratigraphic position and degradation legacy (former freeze-thawing history) of the considered deposits: active layer (grey colour code, n = 467), Holocene cover (orange, n = 175), thermokarst deposits, (olive-green, n = 479), Taberite (in-situ thawed, diagenetically altered but not relocated former Yedoma deposits, bluish-purple n = 175), and Yedoma (ice-blue, n = 917) deposits. The colour code is used in Figs. 3, 4. The depth is approximate and meant to communicate the general depth of different landscape units. For the depth-specific nitrogen estimates, absolute depth measurements are used. Abbreviations introduced here are used in all other figures and tables: AL active layer, HC Holocene cover on top of Yedoma, TK Thermokarst deposits, T Taberites, Y, Yedoma deposits.
