The coal-forming models in late permian eporch in Guangxi are divided into "two classes and three types", the two classes are peat bog coal-forming model and peat flat coal-forming model, the three types are bog type, tidal flat type and peat flat type coal-forming models.

Ore-forming Conditions and Prospecting of the Yechangping Mo-W Deposit in Lushi County,Henan Province;

A Discussion on the Causes for Non-existence of Fishes in the Changping Valley, Mt. Siguniang;