Holocene erosion and deposition within a small catchment of the northeastern Borisoglebsk Upland (Central European Russia)статья

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1. Полный текст 2020_Belyaev_et_al_IOP_Conf_Ser_Earth_Environ_Sci_438.pdf 2,5 МБ 15 февраля 2020 [EkaterinaGarankina]

[1] Holocene erosion and deposition within a small catchment of the northeastern borisoglebsk upland (central european russia) / V. R. Belyaev, E. V. Garankina, I. G. Shorkunov et al. // Conference Series: Earth and Environmental Science International science and technology conference Earth science IOP Conf. Series: Earth and Environmental Science. — 2020. — no. 438. During the Holocene, interfluvial landscapes of European plains have experienced alternating periods of relative stability and significant shifts in climate, soil and geomorphological development. Assumed to be an arena of major transformation their evolutionary model is not entirely resolved yet. Based on lithostratigraphic, geomorphologic and soil survey, new results on the Holocene dynamics of fluvial and related processes including landscape stabilization phases for one of the gully catchments draining the Borisoglebsk Upland northeastern slope towards the Nero Lake are presented. Common absence of the early Holocene deposits can be explained by generally negative sediment budget of the catchment. Nevertheless, continuous erosion was not likely whether rare climatic extremes probably were the case. A series of middle Holocene dates obtained by analyzing total organic carbon from organic-accumulative layers of buried soils, lake gyttja and peats highlights strong evidence of the synchronous phase of landscape stabilization in both upper and lower parts of the Puzhbol catchment accompanied by active infilling of small erosion cuts in its middle part. The upper part of the Puzhbol Gully fan sediment shows clear evidence of synchronous accumulation of agrogenic colluvium and gully alluvium since XIIth Century on top of the lake terrace deposits. [ DOI ]

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