Fossil midges and quaternary palaeoenvironments

化石蠓和第四纪古环境

• 批准号: 138080-2009
• 负责人: Walker, Ian
• 金额: $ 1.6万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=475765
• 关键词: Fossil; midges; quaternary; palaeoenvironments

The remains of midges (primarily chironomids) are abundant, and well-preserved in the bottom sediments of lakes, and are now one of the indicator groups most favoured for reconstructing past climatic change. To better document summer palaeotemperatures, a series of sediment cores will be taken from Canadian lakes and analysed for the remains of these insects. The derived temperature reconstructions will allow for detailed assessments of regional changes in climate, and their relationship to other events (e.g., massive meltwater floods, and archeological records). This will build towards the eventual establishment of a national and

摇蚊（主要是摇蚊）的遗迹丰富，保存完好，在湖底沉积物中，现在是重建过去气候变化的最有利的指示组之一。为了更好地记录夏季古温度，将从加拿大的湖泊中提取一系列沉积物岩心，并分析这些昆虫的遗骸。得到的温度重建结果将允许对区域气候变化及其与其他事件（如大规模融水洪水和考古记录）的关系进行详细评估。这将有助于最终建立一个全国性的政府