High Resolution Topography of House Range Fault, Utah

The House Range fault data set comprises high-resolution topography and an orthomosaic of part of the House Range fault (HRF) and shorelines of Late Pleistocene Lake Bonneville that it cuts in the Sevier Desert, Eastern Basin and Range Province, Utah, USA. The data set covers ~4.5 km of the HRF scarp, in the central portion of the HRF. The site was chosen for the well-developed and preserved scarp, shorelines, and cross-cutting relationships in the area. UAS – derived low-altitude aerial photographs and dGNSS – measured ground control points were processed with Structure-from-Motion and multi-view stereo software (SfM) to generate a point cloud, digital surface model (DSM), and orthomosaic, of the area. The House Range fault (HRF) is a range-bounding, west-dipping normal fault in the western Sevier Desert, within the eastern Basin and Range province, Utah, USA. There is up to 1600 m of vertical relief across the fault, and it displays characteristics typical of tectonically – driven extensional faulting, in contrast to extension that is associated with volcanism in the eastern Sevier Desert (Stahl and Niemi, 2017; Stahl et al., in review).

本数据集包含美国犹他州东部盆岭省（Eastern Basin and Range Province）塞维尔沙漠（Sevier Desert）内的豪斯岭断层（House Range Fault，HRF）部分区段及其所切割的晚更新世邦纳维尔湖（Late Pleistocene Lake Bonneville）岸线的高分辨率地形数据与正射影像镶嵌图（orthomosaic）。数据集覆盖了豪斯岭断层中段约4.5千米的断层崖（scarp）区段。该研究区的遴选依据为区内发育完好且保存完整的断层崖、湖岸线及其穿插接触关系。由无人机系统（Unmanned Aerial System，UAS）获取的低空航拍影像，以及通过差分全球导航卫星系统（differential GNSS，dGNSS）测得的地面控制点，经运动恢复结构与多视图立体匹配软件（Structure-from-Motion and multi-view stereo software，SfM）处理后，生成了研究区的点云（point cloud）、数字表面模型（Digital Surface Model，DSM）与正射影像镶嵌图。豪斯岭断层（HRF）是位于美国犹他州东部盆岭省塞维尔沙漠西部的一条围限山脉的西倾正断层（normal fault）。该断层两侧垂直落差可达1600米，表现出构造驱动的伸展断层作用的典型特征，这与塞维尔沙漠东部与火山活动相关的伸展作用形成鲜明对比（Stahl和Niemi，2017；Stahl等，待刊）。