Lebel, D., Vuitton, R., Masse, L., Deblonde, C., Kirkwood, D., Marcil, J., Vallé, M., Da Roza, R. and Malo, M. 2001. Integration of photogrammetric data in the construction of a 3-D geological model in a thrust-fold belt, Moose Mountain, Alberta, Canada. In: (Ed.) Laurent Aillères, and Tim Rawling, Animations in Geology, Journal of the Virtual Explorer, Electronic Edition, ISSN 1441-8142, volume 4, paper 6, doi:10.3809/jvirtex.2001.00033
Through computer animations, we outline a prospective 3-D model construction method that builds on a 2.5-D geological mapping and data extraction technique based on vertical and oblique photogrammetry. We use an example from the Canadian Rocky Mountain thrust and fold belt, to demonstrate the method applicability in high relief areas. Photogrammetry-derived 2.5-D geological boundaries are more representative of geological elements than conventional 2-D maps and can be extrapolated to serial cross-sections to form the basis for 3-D model surface and volume constructions. The 3-D surfaces respect the constraints imposed by structural orientation data and the trace of key geologic planes such as folded stratigraphic contacts and faults.
Table of Contents
- 2.5-D to 3D Geological Modelling