Last and current interglacial environments of Kola Peninsula, as reflected in the sediment record of Lake Imandra

伊曼德拉湖沉积物记录反映了科拉半岛末次和当前的间冰期环境

• 批准号: 323638479
• 负责人: Professor Dr. Martin Melles
• 金额: --
• 依托单位: Department of Geomorphology
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2017
• 资助国家: 德国
• 起止时间: 2016-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/323638479?language=en
• 关键词: Last; current; interglacial; environments; Kola

The project proposed here constitutes a contribution to the bilateral programme "DFG-SPSU 2016" between the St. Petersburg State University, Russia, and the DFG. It aims at investigating the climatic and environmental history of the Kola Peninsula, Russia, during Late Quaternary times, based upon the composition of the sediment record in Lake Imandra. With 876 km2 Imandra is the largest lake in the European Arctic. It has a maximum water depth of 70 m and is located on the western Kola Peninsula, close to the Finnish border, in an elongated deep tectonic depression. Since the depression is oriented perpendicular to the main flow direction of the Pleistocene ice masses, it is expected that sediments deposited in the depression prior to the last glaciation have not entirely become eroded or disturbed. These sediments could function as a unique, partly continuous archive for the reconstruction of the preglacial climatic and environmental history, in an area, in which the present understanding of the Quaternary geology is widely restricted to the time following the Last Glacial Maximum. For this purpose, (i) a seismic survey shall be carried out on Lake Imandra, in order to determine its sediment thickness and architecture, (ii) sediment cores of up to 30 m length shall be taken from the lake at sites identified by the seismic survey, using an improved percussion piston corer, (iii) the cores shall consistently be investigated for stratigraphy, sedimentology, and chemical and biological composition, and (iv) from the proxies measured, qualitative and quantitative reconstructions of the climatic and environmental history in the lake and its vicinity shall be derived. The field and analytical work, as well as the interpretation and publication of the results, shall be made jointly with colleagues from the St. Petersburg State University, building on a continuous collaboration since the 1990s. This project could be carried out with limited costs for field logistics, because the seismic and coring techniques of the University of Cologne, which are requested for the fieldwork, will be available in Russia at no cost following fieldwork for another research project funded by the German and Russian Research Ministries.

这里提出的项目是对俄罗斯圣彼得堡国立大学和俄罗斯圣彼得堡国立大学之间的双边方案“DFG-SPSU 2016”的贡献。它的目的是根据伊曼德拉湖沉积物记录的组成，调查俄罗斯科拉半岛第四纪晚期的气候和环境历史。伊曼德拉面积876平方公里，是欧洲北极最大的湖泊。它的最大水深为70米，位于科拉半岛西部，靠近芬兰边境，处于一个拉长的深构造凹陷中。由于凹陷与更新世冰块的主要流动方向垂直，因此预计末次冰期之前凹陷中沉积的沉积物不会完全受到侵蚀或扰动。这些沉积物可以作为一个独特的、部分连续的档案，用于重建冰前气候和环境历史，在该地区，目前对第四纪地质学的理解普遍限于最后一次冰盛期之后的时间。为此，(I)应对伊曼德拉湖进行地震调查，以确定其沉积物厚度和结构，(Ii)应使用改进的冲击式活塞式取样器，在地震调查确定的地点从湖中采集长度最长为30米的沉积物岩芯，(Iii)应对岩芯进行一致的地层、沉积学和化学和生物成分调查，以及(Iv)根据测量的指标，定性和定量地重建湖泊及其附近地区的气候和环境历史。实地工作和分析工作，以及结果的解释和公布，应与圣彼得堡国立大学的同事共同开展，并在1990年代以来不断合作的基础上进行。这个项目可以在实地后勤费用有限的情况下进行，因为在为德国和俄罗斯研究部资助的另一个研究项目进行实地工作之后，俄罗斯将免费提供实地工作所需的科隆大学的地震和取心技术。

项目成果

Climate and environmental history at Lake Levinson‐Lessing, Taymyr Peninsula, during the last 62 kyr

• DOI: 10.1002/jqs.3384
• 发表时间: 2021-10
• 期刊: Journal of Quaternary Science
• 影响因子: 2.3
• 作者: M. Lenz;M. M. Lenz-M.;Andrei A. Andreev;S. Scheidt;R. Gromig;E. Lebas;G. Fedorov;S. Krastel;M. Melles;B. Wagner

Lateglacial and Holocene environmental history of the central Kola region, northwestern Russia revealed by a sediment succession from Lake Imandra

• DOI: 10.1111/bor.12465
• 发表时间: 2020-09
• 期刊: Boreas
• 影响因子: 2.2
• 作者: M. Lenz;L. Savelieva;L. Frolova;A. Cherezova;M. Moros;Marlene M. Baumer;R. Gromig;N. Kostromina;N. Nigmatullin;V. Kolka;B. Wagner;G. Fedorov;M. Melles

Highly variable sediment deposition in Lake Imandra, NW Russia, since the Late Pleistocene

自晚更新世以来，俄罗斯西北部伊曼德拉湖的沉积物沉积变化很大

• DOI: 10.1002/jqs.3353
• 发表时间: 2021
• 期刊: Journal of Quaternary Science
• 影响因子: 2.3
• 作者: Lenz M;Lebas E;Lenz M.M;Fedorov G;Gromig R;Kolka V;Krastel S;Leicher N;Melles M. ;Wagner B.
• 通讯作者: Wagner B.

Mineral Magnetic Characterization of High‐Latitude Sediments From Lake Levinson‐Lessing, Siberia

• DOI: 10.1029/2021gl093026
• 发表时间: 2021-05
• 期刊: Geophysical Research Letters
• 影响因子: 5.2
• 作者: S. Scheidt;R. Egli;M. Lenz;C. Rolf;K. Fabian;M. Melles

A 62-ka geomagnetic palaeointensity record from the Taymyr Peninsula, Russian Arctic

• DOI: 10.5194/gchron-2021-12
• 发表时间: 2021-06
• 期刊: Geochronology
• 作者: S. Scheidt;M. Lenz;R. Egli;D. Brill;M. Klug;K. Fabian;M. M. Lenz-M.;R. Gromig;J. Rethemeyer;B. Wagner;Grigory Federov;M. Melles