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

9615768 Brigham-Grette SGER奖支持对Elgygytgyn湖的试点研究，该湖位于俄罗斯东北部北极圈以北100公里处的一个大型湖泊盆地。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。这个盆地没有冰川作用，这使得这个现代湖泊极有可能包含了至少过去25万年的连续古环境记录，但很可能追溯到撞击时期。人们相信，一个国际性的、多学科的项目将收集和分析这个湖的核心材料，从而提供一个在北亚无与伦比的古气候记录。该项目的目的是为了验证这样一个假设，即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，从全新世一直延伸到晚更新世。如果成功，这些岩心将为未来的大型深钻项目提供动力，以获取整个记录。

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.