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Ministry of Energy Mines and Responsible for Core Review

GeoFile 2012-06:  Mapping BC's Golden Triangle Using ASTER Imagery

Mineral Exploration Roundup 2012 Poster

by T. Han, J.L. Nelson and J. Kyba


View GeoFile 2012-06 (PDF, 16.2 MB)

The Advanced Space-borne Thermal Emission and Reflection Radiometer (ASTER) has been found effective for geological mapping applications due to its high spectral resolution in the Shortwave Infrared (SWIR) wavelengths of the electromagnetic wave; frequent revisit cycle and wide swath; and affordability of acquiring images to cover large geographic areas. Using ASTER imagery to map BC's geology, however, faces a few challenges, among others, including complex terrain and dense vegetation coverage. This may partially explain why there are not many documented studies in this regard. This study focuses on testing ASTER's ability on mapping the general rock groups in BC's “Golden Triangle” area, which is chosen for the vibrant exploration and mining activities in its vicinity and good surface exposure of bedrock rock, a prerequisite for any optical remote sensing based-mapping.

All publications of the BC Geological Survey are available digitally, free of charge, from this website.


For questions or more information on geology and minerals in British Columbia contact BCGS Mailbox or call toll free (B.C. residents only).