Accumulation rates from sediment core 16-KP-04-L19B, Lake Rauchuagytgyn, expedition to Chukotka 2016, Russian Arctic

These dataset contains multi proxy data from short sediment core 16-KP-04-L19B obtained from Arctic glacial lake Rauchuagytgyn (N 67.7888, E 168.7380) by gravity coring during the Chukotka 2018 expedition (Siberia). We provide original count data of diatom species from 20 samples along a ca. 10.5 cm interval in the sediment core, next to organic carbon, nitrogen, and mercury concentrations. The data sets provides, calculated from the original data, estimated accumulation rates for diatom valves (diatom accumulation rate, DAR), organic carbon (organic carbon accumulation rates, OCAR), and mercury (Hg accumulation rates, HgAR).

本数据集包含北极冰碛湖劳恰瓦格特金（Rauchuagytgyn，北纬67.7888°，东经168.7380°）的短沉积物岩芯16-KP-04-L19B的多指标数据，该岩芯由2018年楚科奇考察（西伯利亚）期间通过重力取芯获取。本数据集提供该岩芯约10.5厘米层段内20个样品的硅藻物种原始计数数据，以及有机碳、氮与汞的浓度数据；此外还包含基于原始数据计算得到的硅藻瓣堆积速率（diatom accumulation rate, DAR）、有机碳堆积速率（organic carbon accumulation rate, OCAR）与汞堆积速率（mercury accumulation rate, HgAR）。