Geologic provinces beneath the Greenland Ice Sheet constrained by geophysical data synthesis

This dataset presents subglacial provinces mapped beneath the Greenland Ice Sheet using seismic tomography, gravity and magnetic anomalies, subglacial topography and the surface expression thereof. This dataverse deposit contains: (1) a "flow-aware" hillshade model of the ice sheet as a raster, (2) the MATLAB script associated with generating the flow-aware hillshade; (3) all traced lineations from the ice-sheet surface as shapefile polylines (4) the seismic tomography results considered in this study that were not previously available as rasters; (5) the apparent boundaries in geophysical fields as shapefile polylines; (6) the subglacial geologic provinces as shapefile polygons.

本数据集展示了利用地震层析成像、重力异常和磁力异常、冰下地形及其地表表现所绘制的格陵兰冰盖下冰缘省份地图。该数据集存储包含以下内容：(1) 冰盖的“流动感知”晕影模型，以栅格形式呈现；(2) 生成“流动感知”晕影的MATLAB脚本；(3) 从冰盖表面追踪的所有线条，以形状文件多段线形式呈现；(4) 在本研究中考虑的地震层析成像结果，这些结果之前并未以栅格形式提供；(5) 地球物理场中的明显边界，以形状文件多段线形式呈现；(6) 冰下地质省份，以形状文件多边形形式呈现。