The North Dvina river delta development over the Holocene: Geochronology and palaeoenvironment

Geochronometria

Leopold D. Sulerzhitsky¹  Nataliya E. Zaretskaya¹  Alexandra N. Simakova¹  Nataliya V. Shevchenko² 

[1] Geological Institute of Russian Academy of Sciences;Moscow State University n.a. M.V. Lomonosov

关键词: North Dvina River delta;    White Sea;    Holocene;    geochronology;    radiocarbon dating;    landforms;    palaeoenvironmental reconstructions;    land evolution;   

DOI  :  10.2478/s13386-011-0012-y

学科分类：社会科学、人文和艺术（综合）

来源: Politechnika Slaska * Instytut Fizyki

【 摘 要 】

In this paper, a detailed overview of the Holocene evolution of the North Dvina river (ND) delta (southern White Sea) is presented; it is based on radiocarbon dating, geomorphological and other field surveys, and plant macrofossil and palynological data. We have identified three main stages of the delta evolution: estuary erosional (Allerød — 5700 cal BC), lagoon or tidal-marsh (5700 cal BC — 3700 cal BC) and fan-delta accumulative (3700 cal BC — present). These stages are correlated with local climatic curves, sea level changes, glacioisostatic raise curve and Baltic Sea stages. A variety of landforms has been identified and dated within the delta. These results help to explain the spatial and temporal patterns in the prehistoric human occupation of this area.

【 授权许可】

Unknown