Remote predictive mapping of a potential vent complex in the southern Antigonish Highlands using lidar, magnetics, and field mapping

Laser Altimetry: What Can Be Learned About Geology and Surface Processes from Detailed Topography

“…Lidar has been used to demonstrate improvements in mapping bedrock and surfical geology as well as landscape metrics such as stream incision, and to resolve and map the individual volcanic flow units of the North Mountain Basalt and the identification of crater structures within the lower flow unit (Webster et al, 2006(Webster et al, , 2006. Lidar has been merged with geophysical data to revise the geological boundaries along the Avalon-Meguma terrain boundary in Nova Scotia, Canada (Webster, Murphy and Quinn, 2009). used lidar and drill logs to estimate the thickness of aggregate deposits in the Annapolis Valley, NS.…”

“…This technique offsets each image in red and blue proportional to the elevation; however, the map only can be easily interpreted when it is viewed with the glasses. This technique of merging a grey-scale image with a colour image has been utilized in the past to integrate geophysical data with radar imagery or lidar shaded relief maps (Webster, Murphy and Quinn, 2009). It has also been used to generate "pan sharpened" images utilizing the new optical satellites where a panchromatic band at a 0.5 m resolution is combined with a multispectral (colour) set of bands at a courser resolution such as 2.5 m. The resultant hybrid image has the benefits of the 0.5 m panchromatic detail and the spectral colour information of the courser dataset.…”