15,700 year sediment record of productivity, carbon accumulation and environmental change at Eight Mile Lake, central Alaska; 2020-2023

The role of high latitude lakes in storing and processing terrestrial organic carbon export is not well understood. We analyzed a 2.7-meter (m) -long sedimentary record from Eight Mile Lake that extends back 15,700 years to evaluate connections between productivity, organic carbon accumulation and late Quaternary environmental change in central Alaska. We analyzed macrofossil radiocarbon, alongside physical and biogeochemical properties. This dataset includes data from 12 sediment cores collected across Eight Mile Lake. These cores span time frames of 1000 - 15,700 years. This dataset includes bulk physical data, organic matter abundance, biogenic silica abundance, particle size, geochronological information, magnetic susceptibility data and hyperspectral imagery.

高纬度湖泊在储存与转化陆地输送有机碳过程中所发挥的作用，目前尚未得到充分认知。本研究对取自八英里湖（Eight Mile Lake）的2.7米长沉积记录展开分析，该记录的年代跨度可达15700年，旨在探究阿拉斯加中部地区湖泊生产力、有机碳堆积与晚第四纪环境变化之间的关联。研究同时分析了大化石放射性碳数据，以及沉积物的物理与生物地球化学特征。本数据集涵盖了从八英里湖不同区域采集的12根沉积岩芯的相关数据，这些岩芯的时间覆盖范围为1000年至15700年。本数据集包含沉积物整体物理参数、有机质丰度、生物硅丰度、粒度参数、年代学信息、磁化率数据以及高光谱影像数据。