Dataset - Large thrusting and late faulting shape the Aiguilles Rouges crystalline massif (Western Alps), structural implications

The dataset includes outcrop locations, structural measurements of geological features, and samples used in the study: Large thrusting and late faulting shape the Aiguilles Rouges crystalline massif (Western Alps), structural implications. Data are from the Aiguilles Rouges and Mont-Blanc massifs, two of the External Crystalline Massifs of the Western Alps. The data are given in comma-separated values (CSV). The locations were georeferenced by using hand-GPS devices. Measurements of planar and linear geological features were measured using high-precision professional compasses (Freiberger and Topochaix). The dataset is fully interoperable, with operating standards and lexicons from the international consortium (OGC) and the Darwin Core. This dataset has been used partly for building two 3D geological models based on potential field interpolation (GeoModeller). The data may be helpful for any other structural geologist or engineer who works on the geology of the External Alps and more precisely on the Aiguilles Rouges and Mont-Blanc massif.
The dataset includes a 3D photogrammetric model of the highest peak of the Aiguillles Rouges, used for describing the geological features atop the massif. Because the peak is in a high-mountain area, access is quite challenging. Therefore, we acquired high-resolution drone images, to build a 3D photogrammetric digital elevation model (DEM) with Agistoft Metashape 1.7.3 software. The DEM is based on 260 shots with a spatial resolution of about 6 cm.

本数据集包含本研究中用到的露头点位、地质构造测量数据与样品：大型逆冲作用与晚期断层作用塑造了西阿尔卑斯造山带的艾格峰结晶地块（Aiguilles Rouges crystalline massif），相关研究聚焦其构造地质意义。数据采自西阿尔卑斯外部结晶地块（External Crystalline Massifs）中的艾格峰地块与勃朗峰（Mont-Blanc）地块。

数据以逗号分隔值（comma-separated values, CSV）格式存储。露头点位通过手持GPS设备完成地理参考配准。面状与线状地质构造的测量采用高精度专业罗盘（Freiberger与Topochaix）完成。本数据集完全符合互操作规范，采用国际开放地理空间联盟（Open Geospatial Consortium, OGC）与达尔文核心（Darwin Core）的操作标准与术语体系。本数据集曾部分用于构建两项基于位场插值的三维地质模型（GeoModeller）。本数据集可服务于所有研究外阿尔卑斯地质，尤其是艾格峰与勃朗峰地块地质的构造地质学家与工程人员。

本数据集包含艾格峰最高峰的三维摄影测量模型，用于描述该结晶地块顶部的地质特征。由于该高峰地处高海拔山区，通行难度极大，因此研究团队通过采集高分辨率无人机影像，使用Agistoft Metashape 1.7.3软件构建了三维摄影测量数字高程模型（digital elevation model, DEM）。该数字高程模型基于260组航拍影像构建，空间分辨率约为6厘米。