Application of LIDAR to resolving bedrock structure in areas of poor exposure: An example from the STEEP study area, southern Alaska
Pavlis T and Bruhn RL. Application of LIDAR to resolving bedrock structure in areas of poor exposure: An example from the STEEP study area, southern Alaska
An airborne, LIDAR (light detection and ranging) data set is used to map bedrock structure in an area with poor outcrop and indistinct stratigraphy. A 1-m, bare-earth filtered digital elevation model (DEM) is used to construct multiple shaded-relief images that show subtle topographic features suggestive of folded strata. Preliminary geologic interpretations exported to a field GIS (geographic information system) with GPS (global positioning system) identified the features as resistant beds beneath vegetation, and allowed construction of a regional map of bedding and fault traces.
- Type
- Published Report
- Authors
- Pavlis, Terry; Bruhn, Ronald
- Units
- WRST
- Keywords
- 3D, DEM, GIS, GPS, Lidar, Light Detection And Ranging