View eastward of a deep pull-apart in the Canwell Glacier along the Denali rupture. Offset across the pull-apart is 3.8 +/- 0.04m right-laterally and 0.3 +/- 0.2m up to the north. The fault appeared to be parallel to a medial moraine here. Slickensides were observed on the glacier ice at a depth of 4m. P. Craw for scale. Site PH483, km 108.29. Photo by P. Haeussler.
Close view of a deep pull-apart in the Canwell Glacier along the Denali rupture. Offset across the pull-apart is 3.8 +/- 0.04m, right-lateral, and 0.3 +/- 0.2m, up to the north. The fault appeared to be parallel to a medial moraine here. Slickensides were observed on the glacier ice at a depth of 4m - note the ~1.5 x 1.5m face with horizontal slickenlines. This is the only location where these were seen in glacier ice. Site PH483, km 108.29. Photo by P. Haeussler.
View of a pull-apart near locality PH483 on the Canwell Glacier. This pull apart had a keystone-shaped block that filled the hole. View is to the southeast. Offset at site PH483 is 3.8 +/- 0.04m, right-lateral, and 0.3 +/- 0.2m, up to the north. Site PH483, km 108.29. Photo by P. Haeussler.
View of a pull-apart near locality PH483 on the Canwell Glacier. This pull apart had a keystone-shaped block that filled the hole. View is to the southeast. Offset at this site is 3.8 +/- 0.04m, right-lateral, and 0.3 +/- 0.2m, up to the north. P. Craw for scale. Site PH483, km 108.29. Photo by P. Haeussler.
View to the east of a measured pull-apart along the Denali fault. An ice face with slickenlines is visible in the lower left of the photo. Offset here is 3.8 +/- 0.04m, right-lateral, and 0.3 +/- 0.2m, up to the north. Location is on the Canwell Glacier. Site PH483, km 108.29. Photo by P. Haeussler.