The analys is ismade of Pb isotopic compositions of the Douling Group biotite-plagioclase gneiss,plagioclase amphibolites and granites from the Douling massif.

The Douling complex, which occurs at the boundary area between Henan and Shaanxi provinces, central China, is a tectonic block of restricted extent.

In some mountainous countryside of China where the rivulets wander through,the stones on the riv- er-related lands have been rapt without restraint.

But with the highway construction extending to mountainous areas, the situation that spall soil of different spall content as the main filling of roadbed appearing, phenomenon of road surface split occasionally occurring in some new project because of spall soil roadbed unhomogeneous settlemen.

Macroscopic Algae from the Ediacaran Doushantuo Formation in Northeast Guizhou, South China;

Geochemistry and petrogenesis of the cap dolostones at the bottom of the Doushantuo Formation in northwestern Fanjing Mountains,Guizhou;

Sedimentary Successions and Environment of the Sinian Doushantuo Formation in Jiangkou,Guizhou Province;