Abstract:

 The Baiyangdian billabong of Hebei province is a large natural plain billabong,

in which multivariable geochemical anomalies,especially Cu,Pb,Zn,Cd,were detected in both

topsoils and deepsoils. This study distinguished the characteristics and origins of the

Cu,Pb,Zn,Cd anomalies in topsoils and deepsoils by the method of geochemical

characteristics, the method of reference elements and the method of multivariate

statistics. The result indicates that the anomalies presenting in deepsoils were related to

the specific geochemical deposition environment that resulted mainly from natural

processes;however,the geochemical anomalies presenting in topsoils have typical

characteristics of dualistic superposition, and mainly resulted from anthropogenic

activities.

Key words:

Key words: Baiyangdian billabong; geochemical anomalies; origin distinguishing