Bromine proxy record from sediments of Lake Chasha, Kamchatka (2022–771 AD)

This dataset contains bromine (Br) concentration measurements from lacustrine sediments of Lake Chasha, Kamchatka Peninsula, Russia. The data were obtained using synchrotron radiation X-ray fluorescence (SR-XRF) core scanning at a spatial resolution of 1 mm. The record spans the period from 771 CE to 2022 CE (calibrated age model). Analytical work was performed at the Siberian Center for Synchrotron and Terahertz Radiation, Budker Institute of Nuclear Physics, Siberian Branch of the Russian Academy of Sciences.

本数据集涵盖俄罗斯堪察加半岛查沙湖（Lake Chasha）湖相沉积物中的溴（bromine, Br）浓度测量数据。数据采用同步辐射X射线荧光（synchrotron radiation X-ray fluorescence, SR-XRF）岩芯扫描技术获取，空间分辨率为1毫米。该记录的时间跨度为公元771年至公元2022年（采用校准年代模型）。分析工作由俄罗斯科学院西伯利亚分院布德克尔核物理研究所下属的西伯利亚同步辐射与太赫兹辐射中心完成。