In the first part of the trip we visited the Qilian Shan Mountains and their alluvial fans, as well as the Badain Jaran desert.
In this second part of the trip we travelled to the Tibetan plateau, in Qinghai and Sichuan provinces, in order to sample the upper reaches of the Yellow River.
It is suspected that fluvial activity would be able to provide high volumes sediment found in certain areas of northern China, as preliminary data suggests major rivers may play an important role in sediment transport over long distances.
This is supported by the route of the Yellow River looping around the Loess Plateau and the Mu Us desert after it has drained the northeast Tibetan plateau.
First sample of the second part of the trip, on the Shui River.
Modern Yellow River near the town of Qinghai.
Just lower down from the Yellow River source lakes we took a sample.
Sandy sample close to the town of Dari.
Layers of silt and sand on the first big dog-leg of the river.
(All pictures from Tom)