The Paleoclimatic Record of Elgygytgyn Lake, Ne Russia: A Pilot Study

俄罗斯中部埃尔吉吉金湖的古气候记录：一项试点研究

• 批准号: 9615768
• 负责人: Julie Brigham-Grette
• 金额: $ 6.7万
• 依托单位: University of Massachusetts Amherst
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-10-01 至 1999-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9615768&HistoricalAwards=false
• 关键词: Paleoclimatic; Record; Elgygytgyn; Lake; Ne

9615768 Brigham-Grette This SGER award supports a pilot study of Elgygytgyn Lake, a large lacustrine basin located 100km north of the Arctic Circle in northeast Russia. This lake was created by a meteorite impact that generated a crater roughly 23km in diameter. The lack of glaciation in this basin makes it highly likely that the modern lake contains a continuous paleoenvironmental record of at least the last 250,000 years, but probably back to the time of impact. It is believed that an international, multidisciplinary project to collect and analyze core materials from this lake will provide a paleoclimate record unparalleled in northern Asia. The objectives in this project are intended to test the hypothesis that this large, but morphologically simple lacustrine system contains a high resolution sediment archive extending through the Holocene and well into the late Pleistocene. If successful, these cores will provide the impetus for a major deep drilling program to retrieve the entire record in the future.

9615768 Brigham-Grette 该 SGER 奖项支持对埃尔吉吉特金湖 (Elgygytgyn Lake) 的试点研究，该湖是位于俄罗斯东北部北极圈以北 100 公里处的一个大型湖盆。 这个湖是由陨石撞击形成的，陨石撞击形成了一个直径约 23 公里的陨石坑。 该盆地缺乏冰川作用，因此现代湖泊极有可能包含至少过去 25 万年的连续古环境记录，但很可能可以追溯到撞击时期。 据信，收集和分析该湖核心材料的国际多学科项目将提供亚洲北部无与伦比的古气候记录。 该项目的目标是检验这样一个假设：这个庞大但形态简单的湖泊系统包含一个高分辨率的沉积物档案，延伸到全新世并一直延伸到晚更新世。 如果成功，这些岩心将为大型深钻计划提供动力，以在未来检索整个记录。