REE geochemistry of fluorite from Yixian fluorite deposit and its geological implications;

Sr Isotopic Composition and Genesis in Yixian Fluorite Deposit

The method was applied in the prediction of fluorite deposit in Yixian with result correspondent to the fact and it can be used in other fields and predication of other ore deposit if the metallotect and the grade.

With Wuyi county as the research area,we studied the characteristics of land use change in the urbanization process.

There are 75 families,201 genera and 380 species of wild woody Chinese medicinal herbs in Wuyi County.

There are 1 454 ancient and famous trees in Wuyi County,belonging to 25 families,38 genera and 43 species,of which the oldest has an age of 1 200 and the biggest diameter reaches 270 cm.

Collective Forest Property Rights Reform in Chongyi County of Jiangxi;

Discovery of Pseudolarix from Lower Cretaceous Yixian Formation in Beipiao of Liaoning and its significance for origin and evolution;

Grain size analysis of sedimentary environment from Jianshangou bed of Yixian Formation in western Liaoning,China;

A new material of Neozamites from Yixian Formation of western Liaoning and its paleophytogeographic significance;