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

9615768 Brigham-Grette该SGER奖支持对Elgytgyn湖的试点研究，Elgytgyn湖是一个大型湖泊盆地，位于俄罗斯东北部北极圈以北100公里处。这个湖是由陨石撞击形成的，形成了一个直径约23公里的陨石坑。该盆地中没有冰川，这使得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，但很可能追溯到撞击时。人们相信，一个收集和分析该湖核心物质的国际、多学科项目将提供北亚无与伦比的古气候记录。该项目的目标是验证这一假设，即这个大型但形态简单的湖泊系统包含一个高分辨率的沉积物档案，从全新世一直延伸到晚更新世。如果成功，这些岩心将为未来一个主要的深井钻探计划提供动力，以检索整个记录。

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.