| 陆壳岩石化学结构建立方法探讨 |
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| 关键词:experimental rock recursive equation petrochemical structure of continental crust |
| 基金项目:国土资源部科技计划专项(编号:200010103)，国家自然科学基金项目(编号:402344048、40572048)，中国地质大学“岩石圈构造、深部过程及探测技术”教育部重点实验室开放课题(编号:2003009、2003010) |
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| 摘要: |
| A Discussion on the Method for Setting up Crustal Petrochemical Structure |
| Based on the data of the experimental rocks which have both seismic velocity V_p and petrochemical composition, this paper has discussed the main factors affecting seismic velocity of rocks and the difference of the linear relationship between the seismic velocity V_p and the petrochemical composition under different experimental conditions. The recursive equations of SiO_2, quartz, quartz feldspar, and the differentiation index (DI) versus V_p have been set up on the basis of the data obtained at normal temperature and high pressure (600 MPa), with a discussion on their application scope. Verifications of these recursive equations indicate that they can be used to deduce the composition of deep-seated materials based on the data of seismic velocity. |
| QIU Rui-zhao,DENG Jin-fu,ZHOU Su,XIAO Qing-hui,CAI Zhi-yong,WU Zong-xu,WANG Shao-huai,ZHAO Guo-chun.2006.A Discussion on the Method for Setting up Crustal Petrochemical Structure[J].Acta Geoscientica Sinica,27(3):259-270. |
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