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TitleGeomatics for 3D Geology Exploration: Introduction to the Moose Mountain GEOIDE Project
AuthorLebel, DORCID logo; Stockmal, G SORCID logo; Richards, B; Rivard, B; Kirkwood, D; Toutin, Th; Tao, C V; Malo, M
SourceGeomatics 2000 National Symposium, March 8-10; 2000.
Alt SeriesEarth Sciences Sector, Contribution Series 20042860
AbstractThe Moose Mountain GEOIDE project (#25, 1999-2002) objective is to develop integration methodologies for 3D digital of geological, photogrammetric, remote sensing and geophysical data, applied to resource assessment in foreland thrust and fold belts. This project will also make fundamental assessments of the relationships between these multiple datasets to support geological interpretations in key areas of the foreland of the Canadian Cordillera. To achieve this broad objective, three applied research projects related to mapping and exploration are being conducted with industry and government partners using a combination of new and conventional tools, methodology and data sets. Integration techniques for these multi-disciplinary data are still at an early stage due to a lack of understanding of the relationships between signal and physical properties and the lack of trained researchers and application personnel.

The project focuses on Moose Mountain (innerAlberta Foothills) and the immediately surrounding area. Structures within Mississippian carbonate thrust sheets on Moose Mountain and adjacent ridges are well-exposed, and the sufficient structural continuity provides a proper framework for accurate geological mapping. The area is similar in climate (semi-arid), physiography (rugged) and geology (rock type or lithology, structure) to other terrains found in the high ground of the Canadian Rockies and Foothills and in the Arctic Islands, and therefore yield spectral signatures similar to a broad range of geological terrains.

Substantial new data acquisition is being carried through terrestrial photogrammetry, geology (fracture and structural studies), geodetic, and geophysical (gamma, hyperspectral) field surveys, and remote sensing (radar, multispectral). The first field season has permitted to acquire a broad database of spectral signatures and photogrammetric data which is now being analysed. Experimenting with newly developed software and industrial photogrammetry software is under way, to assess their usefulness in 3d geology analysis. A spectroradiometer has been used to acquire the spectral reflectance (0.35 to 2.5 µm) of three stratigraphic sections within the Lower Carboniferous sequence exposed at Moose Mountain. Digital photogrammetry is used to study structural mesofabric in rock exposures showing simple and complex structures. Simple structures of fractures are studied using photographs and structural measurements obtained at Moose Mountain, while complex structures are measured within an outcrop of the Pointe-de-Lévy thrust nappe of Cambro-Ordovician age in Lévis, Quebec. Structural measures are gathered using 3 methods which will be compated: 1) AutoCAP developed be Laval University, 2) FotoG, an industrial photogrammetry software, and 3) structural field measurements using a compas. Geological information gathered and analysed will comprise the orientation of mesostructures such as bedding, cleavage, fractures and veines, bed thickness and the 3D tracing of these various elements.


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