Bernie Townsend Tripblog 1
Punta Arenas Sunrise Bernie Townsend Trip Blog #1 Location 1: Lago Grey/ Grey Glacier (CLIM) On our field expedition to Lago Grey, we were fortunate enough to go on a boat tour of the lake. This tour provided a unique perspective of the landscape, as well as a close view of the glacier. We witnessed the various geological features caused by the glacier. Figure 1 shows an outwash plain that we walked on in order to reach the boat. The sediment was mostly small, well-sorted, and rounded. The sediment was transported by meltwater from the glacier, explaining the small and rounded sediment size. Larger clasts can be found on the moraines as they were deposited by the glacier itself. Figure 2 shows Grey Glacier. The bright blue color is a result of light scattering and selective absorption, meaning that when sunlight hits the glacier, all other colors except blue are absorbed. We were also able to witness t...