Collaborative Research: Paleoenvironmental Time Series from Postglacial Lake Basins on Kola Peninsula, Russia

合作研究：俄罗斯科拉半岛冰后湖盆古环境时间序列

• 批准号: 9600126
• 负责人: Steven Forman
• 金额: --
• 依托单位: Ohio State University Research Foundation -DO NOT USE
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-07-01 至 1997-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9600126&HistoricalAwards=false
• 关键词: Collaborative; Research; Paleoenvironmental; Time; Series

Abstract ATM-9600126 Forman, Steven L. Ohio State University Title: Collaborative Research: Paleoenvironmental Time Series from Postglacial Lake Basins on Kola Peninsula, Russia It is poorly known how dramatic changes in deglacial and Holocene climates in the North Atlantic region propagated into the Eurasian arctic. Lacustrine and estuarine records from the Kola Peninsula, adjacent to the North Cape Current, the eastern-most limb of the North Atlantic current, provide archives to assess postglacial and Holocene variations in lakes, vegetation and tree line and inferred changes in atmospheric and oceanic circulation. Extant cores from northern Kola Peninsula provide estuarine and lacustrine records spanning at least the last 12,000 yrs. Preliminary analyses demonstrate that these sediments are rich in biologic remains, ideal for securing a reliable radiocarbon chronology and determining environmental changes. This PALE/ARCSS award supports lake coring on a transect from the tundra-dominated northern coast to the forested center of Kola Peninsula. This research will utilize an array of paleoecological techniques such as pollen, diatom, macrofossil and sediment analyses, augmented by recent advances in stomate, chironomid and cellulose stable isotope analyses. To strengthen the paleoenvironmental interpretations of the cores, modern sediment samples will be collected from lakes to statistically calibrate pollen, stomate, diatom, and chironomid records with present climatic, edaphic and vegetation conditions. The research will provide new late glacial and Holocene records from the western Russian arctic, currently a void in global paleoclimatic time series. The collaborative research is with Dr. Glen M. MacDonald at the University of California, Los Angeles (ATM-9632926).

摘要ATM-9600126 Forman，Steven L. Ohio State University标题：合作研究：来自俄罗斯科拉半岛的冰川后湖盆地的古环境时间序列，在北大西洋地区向欧洲大西洋地区传播到欧洲大西洋地区的脱糖和全新世气候的戏剧性变化众所周知。 湖泊和河口记录来自北大西洋电流的北开普电流附近的科拉半岛的记录，提供了档案，以评估湖泊，植被和树线的冰河后和全新世变异，并推断出大气和海洋循环的变化。 来自北科拉半岛的现存核心提供了至少过去12,000年的河口记录。 初步分析表明，这些沉积物富含生物保留物，是确保可靠的放射性碳年代学和确定环境变化的理想选择。 这项苍白/ARCSS奖支持从苔原主导的北部海岸到科拉半岛森林中心的横除湖。 这项研究将利用一系列古生物学技术，例如花粉，硅藻，大化石和沉积物分析，并随着stomate，Chiromid和纤维素稳定的同位素分析的最新进展增强。 为了加强对核心的古环境解释，将从湖泊中收集现代沉积物样品，从统计校准花粉，stomate，硅藻和奇罗尼德记录，并具有当前的气候，edaphic和植被条件。 这项研究将提供来自西部俄罗斯北极的新冰川和全新世记录，目前是全球古气候时间序列中的空白。 这项合作研究与加州大学洛杉矶分校的Glen M. Macdonald博士（ATM-9632926）。