This is a past event
All are invited to a Geosciences research seminar presented by Adam Cawood (University of Aberdeen) on ‘Virtual outcrops for structural geology: applications, workflows and limitations’. The talk will be held at 1PM in Meston Lecture Theatre 2.
Abstract: LiDAR, and more recently, Structure-from-Motion (SfM) photogrammetry, have been used extensively in Earth Science for the generation of virtual outcrops. These reconstructions are increasingly being used for structural analysis and geological model building. Key advantages include: (1) synoptic viewpoints, 3D visualization and improved interpretation, (2) data collection from inaccessible areas and geometrically precise data projection, (3) datasets that encompass a range of scales, and (4) rapid collection of a range of measurements useful for structural analysis. Virtual outcrops from Pembrokeshire, Montana and the French Alps are used as case studies to highlight the ability to refine existing structural models using remote acquisition techniques.
Faithful reconstruction of outcrop geology using LiDAR and SfM is, however, not straightforward. Challenges associated with data acquisition, processing and interpretation are discussed, with reference to our own work and published examples. These challenges have implications for measurement accuracy, and the robustness of derived models. In light of this, we provide a discussion of necessary considerations and suggested workflows when undertaking work of this type. Finally, we present some current limitations of these methods and future developments.
- Venue
- Meston Lecture Theatre 2