The Dongsheng uranium sandstone-type deposit in the
northern Ordos Basin is one of the largest deposits revealed
in China in recent years and has the following peculiarities:
1. The deposit occurs in the sandstones of the lower
member of the Middle Jurassic Zhiluo Formation. The Precambrian
U-enriched crystalline rocks of the Yinshan and
Daqingshan Orogenic Belts in the northern Ordos Basin are
the source of uranium for ores.