ALHIC2201 and ALHIC2302 3D ECM and Layer Orientations

This dataset includes three-dimensional multitrack electrical conductivity measurements (3D ECM) results from measurements in the upper sections of the ALHIC2201 and ALHIC2302 large (241mm) diameter ice cores drilled in the Allan Hills blue ice area (76.73°S,159.36°E) in Victoria Land, East Antarctica. The data extends from the surface to 23.0 m depth in ALHIC2201 and from 8.5 m to 46.3 m depth in ALHIC2302. We include the raw 3D ECM data (AC and DC multitrack ECM measurements on perpendicular faces of a quarter-core cut) in CSV format and basic plots of this data. We also provide dip and dip direction estimates of the layering observed in each core section in a CSV table.本数据集涵盖了采自东南极洲维多利亚地艾伦山蓝冰区（76.73°S，159.36°E）钻探获取的两根大直径（241mm）冰芯ALHIC2201与ALHIC2302上部的三维多道电导率测量（3D ECM）结果。其中，ALHIC2201的测量深度范围为地表至23.0米，ALHIC2302的测量深度范围为8.5米至46.3米。本数据集包含两类数据：一是以CSV格式存储的原始三维多道电导率测量数据（即采自切取的四分之一冰芯垂直面的AC与DC多道ECM测量数据），以及该数据的基础可视化图件；二是以CSV表格形式存储的各冰芯段观测层理的倾角与倾向估算值。