CHAF_v1.zip

We present the first comprehensive database of active and potentially-active continental fault in Chile based on existing studies and new mapping at 1:25,000 scale using geologic and geomorphic criteria and digital elevation models derived from TanDEM-X and LiDAR data. The database includes 959 fault strands grouped into 17 fault systems and classified based on activity (78 proved, 592 probable, 288 possible). The database is a contribution to world compilation of active faults with applications in seismic hazards, paleoseismology, landscape evolution processes, geothermal exploration, and in the study of potential feedbacks between continental deformation and the plate-boundary seismic cycle along subduction zones.

我们首次构建了智利境内活动与潜在活动大陆断层的综合数据库。该数据库基于已有研究成果，采用地质与地貌判别准则，结合TanDEM-X与激光雷达（LiDAR）数据生成的数字高程模型（digital elevation models），完成了1:25000比例尺的全新填图工作。数据库中共包含959条断层段，归为17个断层系统，并依据活动属性划分为三类：确证活动断层78条、大概率活动断层592条、可能活动断层288条。本数据库为全球活动断层汇编工作提供了重要支撑，其应用场景涵盖地震灾害评估、古地震学研究、地貌演化过程分析、地热勘探，以及俯冲带区域内大陆形变与板块边界地震周期间潜在反馈机制的相关研究。