Ciattoni_etal_2024- 2024TC008514-TR_Dataset.zip

The study evaluates the short-term effects of the recent subduction of the Nazca Ridge in Peru, within the context of the long-term tectonic evolution influenced by upper plate stratigraphy and pre-existing structures. We defined the lithosphere-asthenosphere system and the crustal structure of the study area by developing a comprehensive two-dimensional model that integrates geological, geophysical, and petrological data, covering a transect 1000 km in length and 180 km in depth. In particular, using GM-SYS software (Oasis Montaj 2023), we performed a forward modeling of the Bouguer anomaly and a density model. These data were then employed to build a plate-scale geological model and the geological section of the overriding plates using Move software (Petroleum Experts Ltd.). The available dtm and free air grid data were used for isostatic analysis. <br>

本研究围绕秘鲁纳斯卡海岭（Nazca Ridge）近期俯冲事件的短期效应展开评估，研究背景为受上盘地层与先存构造作用制约的长期构造演化进程。我们通过构建综合二维模型，对研究区的岩石圈-软流圈系统与地壳结构进行界定，该模型整合了地质、地球物理与岩石学数据，覆盖长度1000千米、深度180千米的剖面。尤为关键的是，我们借助GM-SYS软件（Oasis Montaj 2023）完成了布格重力异常正演模拟与密度模型构建。随后基于上述数据，通过Move软件（Petroleum Experts Ltd.）构建了板块尺度的地质模型以及上覆板块的地质剖面。我们采用已获取的数字地形模型（DTM）与自由空气重力格网数据开展了地壳均衡分析。