Rhonegletscher

Glacial striae and roches moutonnées bordering the new glacial lake

Following the recession of Rhonegletscher, a riegel emerged from under the ice which now displays remarkable examples of glacial erosion.

Glacial striae and roches moutonnées bordering the new glacial lake
General view of the newly emerged roches moutonnées, looking towards the Rhône valley.
Glacial striae and roches moutonnées bordering the new glacial lake
Compact granitic bedrock was highly polished by the scouring action of ice and debris.
Glacial striae and roches moutonnées bordering the new glacial lake
Limonite deposits formed in cavities facing downglacier.
Glacial striae and roches moutonnées bordering the new glacial lake
Striae emerging from the lake show how the ice moved up and over this roche moutonnée.
Glacial striae and roches moutonnées bordering the new glacial lake
Highly polished rock reflects the sunlight as if it were a mirror.
Glacial striae and roches moutonnées bordering the new glacial lake
This small erratic was deposited on the top of a massive roche moutonnée.
Glacial striae and roches moutonnées bordering the new glacial lake
Rock, moraine and water - abstract art made by Mother Nature.
Glacial striae and roches moutonnées bordering the new glacial lake
Roche moutonnée with an open fracture (lower right) and bright quartz vein (left).
Photos Jürg Alean, 27. August 2007