Stagnation Glacier sedimentApart from a few medial moraines, little sediment is exposed at the glacier surface. The angular character of the material is evident in most cases, but some basal ice is exposed at the surface on the true left-side of the glacier. There is also some evidence of sorting of sediment by supraglacial streams, and patches of smelly organic-rich mounds. |
Aerial view of the lower part of Stagnation Glacier showing a fine pair of lateral moraines. The amount of sediment is deceptively large – the moraines are ice-cored. | A small medial moraine in mid-glacier, comprising angular debris. | A hot day induces a feeling of “glacier lassitude”! A convenient large supraglacial gneiss boulder provides a convenient temporary resting place for Richard Waller. | There is commonly a strong relationship between glacier structure and debris. In this case debris is emerging from strongly foliated ice. |
An unusual cluster of well-sorted pebbles on the glacier surface, probably deposited by a former supraglacial stream. | A pile of fine supraglacial sediment, characterised by a distinctive “farmyard” smell. The smell indicates biogenic activity from microbes living in the sediment. | | |