Beyond the Little Ice Age moraines

This section provides examples of the range of landforms and sediments to be found beyond the Little Ice Age moraine limits, including proglacial fluvial features, a small rock glacier, screes, the lateral morainic troughs (the valleys between the moraines and the rocky valley sides) of Imja and Lhotse glaciers, and small breaches in the moraines of a glacier on Ama Dablam.

Beyond the Little Ice Age moraines
Small braid plain of the stream that leaves Imja Tsho. It is constrained by the lateral moraine of Lhotse Glacier on the left. The peak is Taboche (6367 m).
Beyond the Little Ice Age moraines
The braided stream of Imja, viewed from the lateral moraine, with Ama Dablam in the background.
Beyond the Little Ice Age moraines
Sunset behind the left lateral moraine of Lhotse Glacier reflected in the waters of the Imja river.
Beyond the Little Ice Age moraines
A similar, but early morning view, after an overnight snowfall.
Beyond the Little Ice Age moraines
View upstream of rounded snow-covered boulders in the Imja river. Baruntse and the moraines of Imja Glacier are in the background.
Beyond the Little Ice Age moraines
Bars of sandy gravel in the bed of the Imja river, looking towards cloud-draped Baruntse. The bluish colour of the water is from suspended sediment.
Beyond the Little Ice Age moraines
A rock glacier (greyish debris) occupies the small valley on the left and flows over old, probably late glacial, moraines of Imja Glacier, which are covered in brown vegetation.
Beyond the Little Ice Age moraines
Side view of the rock glacier, showing its bulbous shape and its connection with the scree slope at the valley head.
Beyond the Little Ice Age moraines
The front of the rock glacier, showing the loose unstable debris that indicates that it is active. Neil Glasser provides a scale.
Beyond the Little Ice Age moraines
Large scree slopes fall towards the north lateral moraine of Lhotse Shar Glacier. Lhotse itself is in the background.
Beyond the Little Ice Age moraines
Right-lateral morainic trough of Imja Glacier. The moraine is on the right, and Baruntse is in the background. Wind-blown rippled sand in the foreground.
Beyond the Little Ice Age moraines
Katabatic winds pick up the finer material (mainly sand) from exposed moraine faces and re-deposit as rippled dunes it in sheltered hollows.
Beyond the Little Ice Age moraines
A small lake basin between the moraines of Imja and Lhotse glaciers, which was drained during our visit, is here covered with small sand dunes.
Beyond the Little Ice Age moraines
This small but active fault, cutting across the moraine of Imja Glacier and the adjacent hillside, indicates that this region is prone to earthquakes.
Beyond the Little Ice Age moraines
The lateral morainic trough on the south flank of Lhotse Glacier carries the main footpath to Imja Glacier and Island Peak.
Beyond the Little Ice Age moraines
Above the village of Dingboche, on the opposite side of the valley, is a large moraine on Ama Dablam. The scar shows where outflow from a dammed lake occurred.
Beyond the Little Ice Age moraines
The confluence of the Khumbu and Imja rivers, with moraine scar and Ama Dablam in the background.
   
Photos Michael Hambrey, April-May, 2003