Submarine fault scarp and traces of earthquake (Roseau Fault, French Antilles): 3D scene and imagery

Fault scarp along the Roseau normal fault between Les Saintes and Dominica (French Antilles), at a water depth of 1100 m. This fault scarp is sub-vertical and at its base displays a marker that corresponds to the exposed fault plane during the 2004 Les Saintes Earthquake. The model shows here a coseismic displacement of ~1 m. This scarp was one of several surveyed along the Roseau Fault rupture during the Subsaintes cruise (https://doi.org/10.17600/17001000), with ROV Victor 6000 equipped with an HD Video camera. Two datasets are provided. First, the survey imagery, with a video (mp4 format) and an associated navigation file in txt format. Second, a 3D textured model of the site (obj format), together with the a kml file for georeferencing, and a geotiff orthomosaic. This dataset is one of several sets released with a paper by Arnaubec et al. (submitted March 2021, Computer and Geosciences) presenting the Matisse image processing software, and the 3DMetrics Visualization and analysis software (ref Github to come).

位于莱斯圣特群岛与多米尼加之间（法属安的列斯群岛）的罗索正断层（Roseau normal fault）沿线的断层崖（fault scarp），水深1100米。该断层崖近垂直，其底部显示一处标志，对应2004年莱斯圣特地震（Les Saintes Earthquake）期间暴露的断层面（fault plane）。本模型显示此处同震位移（coseismic displacement）约1米。该崖是Subsaintes巡航（Subsaintes cruise，https://doi.org/10.17600/17001000）期间调查的罗索断层破裂带中的若干崖体之一，调查使用配备高清视频摄像机的遥控潜水器（Remotely Operated Vehicle, ROV）Victor 6000。本数据集包含两部分：其一为调查影像，涵盖mp4格式视频及关联的txt格式导航文件；其二为该地点的3D纹理模型（obj格式），以及用于地理参考的kml文件和geotiff正射镶嵌图（orthomosaic）。本数据集是Arnaubec等人于2021年3月提交至《计算机与地球科学》（*Computer and Geosciences*）的论文所发布的多个数据集之一，该论文介绍了Matisse图像处理软件及3DMetrics可视化分析软件（相关GitHub参考资料即将补充）。