Lithospheric thicknesses in Antarctica from Sp receiver functions

This dataset contains the depths of negative velocity gradients that are potentially interpretable as the lithosphere-asthenosphere boundary (LAB) beneath Antarctica, derived from common conversion point stacking of Sp receiver functions. The dataset provides constraints on lithospheric thickness variations, particularly in West Antarctica, where a vertically localized LAB is observed at depths of 70–100 km. In East Antarctica, two zones of well-defined LAB depths are present in regions near the coast at depths of 75-110 km (~140˚E) and 90-130 km (~115˚E). Interpretation of these results and comparison with prior studies is provided in the associated journal article (see Relevant Publications).本数据集涵盖可被解释为南极下方岩石圈-软流圈边界（Lithosphere-Asthenosphere Boundary，LAB）的负速度梯度深度数据，相关数据通过对Sp接收函数（Sp receiver functions）开展共转换点叠加（common conversion point stacking）处理得到。该数据集为岩石圈厚度的变化特征提供了约束依据，其中西南极地区的观测结果尤为显著：此处的垂直局限型LAB的埋藏深度为70–100 km。东南极沿海区域存在两个LAB深度界定清晰的区块，其埋藏深度分别为75–110 km（约140°E）与90–130 km（约115°E）。针对本数据集研究结果的解读以及与既往相关研究的对比分析，详见配套期刊论文（参见相关出版物）。