Flutes on Bare Bedrock

Wibjörn Karlén
1981 Journal of Glaciology  
Flutes, up to about 500 m long, were observed on bare glacially polished bedrock at the margin of the glacier Svartisen in northern Norway. Since these ridges were lying directly on bedrock that had no till cover, they can hardly have been formed by post-depositional deformation of pre-existing materials, a mechanism for formation favoured by Boulton.
doi:10.1017/s0022143000011369 fatcat:2blukcmjhne3xdyd4nnlkjyj4a