| Title | An innovative approach using digital photogrammetry to map geology in the Porcupine Hills, southern Alberta, Canada |
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| Author | Lebel, D ; Da
Roza, R |
| Source | Photogrammetric Engineering and Remote Sensing vol. 65, no. 3, 1999 p. 281-288 |
| Links | Online - En ligne
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| Image |  |
| Year | 1999 |
| Alt Series | Geological Survey of Canada, Contribution Series 1998007 |
| Document | serial |
| Lang. | English |
| Media | paper |
| File format | pdf |
| Province | Alberta |
| NTS | 82H/12; 82H/13; 82G/09; 82G/16 |
| Area | Porcupine Hills; Rocky Mountain Foothills; Brocket; Head-Smashed-In-Buffalo Jump |
| Lat/Long WENS | -114.2000 -113.5000 50.0000 49.5000 |
| Subjects | surficial geology/geomorphology; regional geology; general geology; photogrammetric techniques; photogrammetric surveys; photogeology; field methods; cartography; computer mapping; remote sensing;
mineral exploration; petroleum exploration; mapping techniques |
| Illustrations | location maps; photographs |
| Released | 1999 01 01 |
| Abstract | Digital and analog air photographs and field observations have been used to map resistant sandstones within the Porcupine Hills Formation in southern Alberta. The traces of these beds were plotted in
three dimensions using a digital stereoplotter. The procedure permits correction of plotting errors made by the geologist who could previously use only a few ground points recognizable in the field to locate sandstone beds on the digital topographic
base map. Digital orthophotos and elevation data were then used to calculate three-point solutions of the strike and dip of sandstone ridges. These procedures allowed the geologist to improve his geological interpretation and to validate the digital
transfer of line work by the photogrammetrist. Photogrammetrically calculated bedding measurements augmented those measured in the field and allowed the geologist to delineate several previously unrecognized folds. |
| GEOSCAN ID | 209390 |
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