Theoretical Calculation of Oxygen Isotopic Fractionation of Tenorite  

作　　者：方涛 

出　　处：《Chinese Journal Of Geochemistry》1997年第2期178-182,共5页中国地球化学学报

摘　　要：Tenorite is an oxide of cupper which has been well documented on its structure, force constants and spectrum. Based on the isotopic shifts of its spectrum calculated from the force constants of tenorite, its reduced partition function ratios were calculated, from which an oxygen isotopic fractionation curve between tenorite and water was obtained:10sin.= 2. 51X2 - 14. 87X + 6. 31 (X = 103/T) Oxygen isotopic fractionation of tenorite was also calculated with the modified increment method of Zheng (1991), and another equation was obtained: 10sin.= 2. 89X2 - 13. 10X + 3. 92 (X = 103/T) Calculated results of the two different models were fitted and possible deviation involved in the calculation was also discussed.Tenorite is an oxide of cupper which has been well documented on its structure, force constants and spectrum. Based on the isotopic shifts of its spectrum calculated from the force constants of tenorite, its reduced partition function ratios were calculated, from which an oxygen isotopic fractionation curve between tenorite and water was obtained:10sin.= 2. 51X2 - 14. 87X + 6. 31 (X = 103/T) Oxygen isotopic fractionation of tenorite was also calculated with the modified increment method of Zheng (1991), and another equation was obtained: 10sin.= 2. 89X2 - 13. 10X + 3. 92 (X = 103/T) Calculated results of the two different models were fitted and possible deviation involved in the calculation was also discussed.

关 键 词：黑铜矿氧同位素 分馏法 矿物 光谱 组成 铜氧化物 

分 类 号：P578.43[天文地球—矿物学]