On the Genesis of Uranium Deposit 720 with Special Reference to theDouble Solution-mixing Model Li Zhengqiu and Hu Zhonglin 1
REE Abundances in Megacrysts and Host Basalts: REE Behavior ofMagma at High Pressures Xiao Shenhong 11
Classification and Type Association of Tin Deposits in SoutheastYunnan Tin Belt Yang Shiyu 21
Volatile Constituents in Magmatic Inclusions Xia Linqi etal. 36
Geochemical Characteristics of Natural Gases in the SichuanBasin --- A Further Discussion Huang Jizhong 45
Multistage Carbonatization and Mineral Geochemistry of a Skarn-typeCopper Deposit at Tongshan, Guichi Qiu Ruilong 58
Preliminary Study on the Evolutionary Characteristics of Rare EarthElements (REE) in Granitoid Rocks and Their Formation Mechanisms inXianghualing Region, Hunan Province, China Du Shaohua and QiuRuizhao 68
Distribution Characteristics of Alkylcyclohexanes in LowerPaleozoic Strata on the Northern Margin of the Tarim Basin, China ZhuYangming and Zhou Zhongyi 80
REE Geochemistry of Surficial Sediments from the Yellow Sea ofChina Wang Jintu 88
