Home > Chinese Dust > Badain Jaran
More in this section Potential Sources

Badain Jaran

The Badain Jaran Desert spans the Gansu, Ningxia and Inner Mongolia provinces. It is home to 'mega dunes' which are sand dunes up to 500 m in height, the tallest stationary dunes in the world! It also has over 100 lakes between the dunes which are fed by springs. The springs are also thought to be the reason that the dunes are kept in place allowing them to grow to such large height. A mega dune is shown in Fig. 1. 

Megadune2

Fig. 1 - mega dunes at Alxa Desert Globa Geopark.

Fig. 2 shows a barchan dune which is also found in the Badain Jaram.  The climate in the Badain Jaram is arid with average rainfall between 50-60 mm per year and the average temperature ~7 degrees C. 

Brachan dune

Fig. 2 - barchan dune from south west Badain Jaram. 

Bulk rock Nd and Sr isotopic compositions of the Badain Jaram desert has been analysed along with many other deserts and the data from this area and the Tengger and Qaidam deserts matches data from last glacial loess from the Chinese Loess Plateau. One interpretation of this suggests that these deserts are the main source regions of the last glacial loess. (Chen et al. 2007). 

References

Chen, J., Li, G., Yang, J., Rao, W., Lu, H., Balsam, W., Sun, Y. & Ji, J. 2007. Nd and Sr isotopic characteristics of Chinese deserts: Implications for the provenance of Asian dust. Geochimica et Cosmochimica Acta, 71, 3904-3914. 

Megadune1

Mega dunes at Geopark near Alxa Youqi. 

BJdesert
 
 
 
 
 

Comment on this page

Did you find the information you were looking for? Is there a broken link or content that needs updating? Let us know so we can improve the page.

Note: If you need further information or have a question that cannot be satisfied by this page, please call our switchboard on +44 (0)1784 434455.

This window will close when you submit your comment.

Add Your Feedback
Close