The A131-131 of plagioclase could be used as a thermometer and a diagram of the relationship between the △131-131, An-content and temperature was proposed by Christie in 1962. Since both △131-131 and rhombic section...The A131-131 of plagioclase could be used as a thermometer and a diagram of the relationship between the △131-131, An-content and temperature was proposed by Christie in 1962. Since both △131-131 and rhombic section angle (RSA, σ) are controlled by lattice parameter, this thermometer was transformed into an RSA thermometer by Wang Xun-yi (RSA is the angle between rhombic section and the trace of(001)).展开更多
The variation diagram of △131-11 with An content and temperature was first proposed by Christie. Based on new experiments, another diagram was suggested by Smith. Assuming a linear correlation between angle of rhombi...The variation diagram of △131-11 with An content and temperature was first proposed by Christie. Based on new experiments, another diagram was suggested by Smith. Assuming a linear correlation between angle of rhombic section (σ) and △131-11, a variation diagram of σ and An content with temperature was advanced by Zhang. Both angle of rhombic section thermometer and △131-11 thermometer are deformation thermometers. The new diagram is compiled based on those three diagrams (Fig.1).展开更多
文摘The A131-131 of plagioclase could be used as a thermometer and a diagram of the relationship between the △131-131, An-content and temperature was proposed by Christie in 1962. Since both △131-131 and rhombic section angle (RSA, σ) are controlled by lattice parameter, this thermometer was transformed into an RSA thermometer by Wang Xun-yi (RSA is the angle between rhombic section and the trace of(001)).
基金Project supported by the National Natural Science Foundation of China.
文摘The variation diagram of △131-11 with An content and temperature was first proposed by Christie. Based on new experiments, another diagram was suggested by Smith. Assuming a linear correlation between angle of rhombic section (σ) and △131-11, a variation diagram of σ and An content with temperature was advanced by Zhang. Both angle of rhombic section thermometer and △131-11 thermometer are deformation thermometers. The new diagram is compiled based on those three diagrams (Fig.1).
