| 岩浆岩体系氧同位素分馏系数的理论计算 |
| |
| 引用本文： | 岩浆岩体系氧同位素分馏系数的理论计算[J]. 岩石学报, 1999, 15(1): 1-13. |
| |
| 作者姓名： | 赵子福 郑永飞 |
| |
| 作者单位： | 赵子福 郑永飞 中国科学技术大学地球和空间科学系，合肥230026. |
| |
| 摘 要： | The increment method is applied tocalcuation of oxygen isotope fractionation factors for common magmatic rocks by usingoxygen isotope indices for known minerals.The results show that there are some differencesin the degree of 18O-enrichment for the different types of magmatic rocks,andtheir sequence of 18O-enrichment is reckoned as follows acid rocks >neutral rocks > basic rocks > ultrabasic rocks.Two sets of internally consistentfractionation factors for phenocryst-lava systems at temperacture above 1000K and forrock-water systems in the temperature range of 0 to 1200℃ are acquired, respectively.Thetheoretical calibrations are consistent with the data from hydrothermal experiments andempirical estimates.The present results can be used to quantitatively determine thehistory of water-rock exchange and to serve geological thermometry for various magmaticrocks (especially extrusive rocks containing phenocryst).
|
| 关 键 词： | 分馏系数 氧同位素 理论计算 标准矿物 化学成分 岩浆岩 |
Theoretical calculation of oxygen isotope fractionation in magmatic rocks |
| |
| Zhao Zifu,Zheng Yongfei. Theoretical calculation of oxygen isotope fractionation in magmatic rocks[J]. Acta Petrologica Sinica, 1999, 15(1): 1-13 |
| |
| Authors: | Zhao Zifu Zheng Yongfei |
| |
| Abstract: | |
| |
| Keywords: | |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《岩石学报》浏览原始摘要信息 |
|
点击此处可从《岩石学报》下载全文 |
