By comparing the radiocarbon age of the soils under burial mounds of known archaeological age with the surface-exposed (background) soils of the surrounding landscapes, we may evaluate the rates of humus renewal in these soils. In the cold climate of the mideastern areas of the Russian plains, the value of humus rejuvenation coefficient decreases. This shows that humus renewal is 5–10 times slower than in the warmer climate of the southern regions. Using the obtained data on the rejuvenation rate of humus substances, we can determine the age of paleosols and study the dynamics of the carbon exchange processes in the biosphere.
Recent archaeological discoveries, refinements in genetic analyses and the archaeobotanical data require a reconsideration of the nature of the emergence of sedentary farming communities in Southeastern Turkey. In the rescue excavations prompted by the Batman and Ilısu dam projects several Early Holocene sites were discovered. For the first time, new data from Körtik Tepe now provide detailed evidence of a local Epipalaeolithic origin for these permanent settlements. In this article we summarize the results and analyses of the 2010-2012 excavations as well as palaeopedological and archaeobotanical data of the Younger Dryas layers at Körtik Tepe. Human isotope studies and the archaeological data suggest a permanent occupation of the site and might point to a local primordial adoption of a sedentary lifestyle in this region as early as the 11th millennium BC.
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