Chemical, elemental, and isotopic measurements of the upper 8000 years of the archived REnland ice CAP (RECAP) ice core from the Renland ice cap in east-central Greenland; 2022-2024

The overall objective of this research was to develop and interpret detailed records of Arctic lead pollution during the past ~8000 years to better understand the development, history, and impacts of mining and metallurgy from the late Neolithic period to present. The dataset contains high-resolution (30 millimeters [mm] average) measurements of elements, chemical species, and water isotopic ratios in the upper ~520 meters [m] of the archived REnland ice CAP (RECAP) ice core. Included are lead and other parameters such as the rare-earth-element cerium, non-sea-salt calcium, sulfur and sodium used for chronology development and interpretation of the lead record. The core was collected in 2015 from the Renland Ice Cap in east-central Greenland. No archive was available for the upper 99.6 m so the most recent part of the record corresponds to 116 years before 1950 (yb1950) or 1833 current era (CE).

本研究的总体目标为构建并解析近8000年来北极铅污染的详细记录，以期更深入理解从新石器时代晚期至今的采矿与冶金活动的发展历程、历史脉络及其环境影响。本数据集包含对存档于雷兰冰盖（REnland Ice CAP, RECAP）冰芯上部约520米段开展的高分辨率（平均采样间距30毫米[mm]）的元素、化学物种与水同位素比值测量数据。数据集涵盖铅及其他相关参数，包括用于年代学构建与铅污染记录解析所需的稀土元素铈、非海盐钙、硫与钠。该冰芯于2015年采自格陵兰中东部的雷兰冰盖。由于上部99.6米的存档段无可用数据，因此该记录的最新时段对应1950年前116年（yb1950），亦即公元1833年。