C/N and C13 patterns in lake sediments as a source of palaeoenvironmental information for the Mologa-Sheksna region (NW Russia)
AbstractOrganic geochemical proxies (C13 and C/N) are used to infer changes of plant fossils sources in the sediments of relict mire lakes in Russia. The Pleistocene-Holocene transition is described by C13 and C/N used jointly. Shifts of C/N and C13 give ideas for the lakes water level and composition of plant remains changes as a consequence of the regional climate alterations. Pre-Holocene cool period (Younger Drias) and preceding warm phase (Allerd) are supposedly traced in the lake sediments for the north of the Mologa-Sheksna Lowland.
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