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| 峨眉山二滩高钛玄武岩Zr/Hf分异的指示意义 | |
| 引用本文： | 严再飞,程礼军,王宏图,陈觅,周家喜.峨眉山二滩高钛玄武岩Zr/Hf分异的指示意义[J].矿物学报,2011,31(1):36-42. |
| 作者姓名： | 严再飞 程礼军 王宏图 陈觅 周家喜 |
| 作者单位： | 1. 中国科学院,地球化学研究所矿床地球化学国家重点实验室,贵州,贵阳,550002 2. 重庆地质矿产研究院,重庆,400042 3. 重庆大学,资源与环境学院,重庆,400030 4. 中国科学院,地球化学研究所矿床地球化学国家重点实验室,贵州,贵阳,550002;中国科学院研究生院,北京,100039 |
| 摘 要： | 对峨眉山二滩高钛玄武岩高场强元素的研究表明,Zr/Hf比值出现了明显分异,可分为高Zr/Hf组和低Zr/Hf组两组玄武岩。Zr/Hf比值的分异与岩浆结晶分异作用无关,而是由部分熔融和地幔源区的不同所导致,暗示高Zr/Hf组和低Zr/Hf组玄武岩分别具有不同的部分熔融条件和不同的地幔物质组分。 |
| 关 键 词： | 高钛玄武岩 高场强元素 部分熔融 不均一性 |
Implications of Zr/Hf Fractionation in the Ertan High-Ti Basalt |
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| YAN Zai-fei,CHENG Li-jun,WANG Hong-tu,CHENG Mi,ZHOU Jia-xi.Implications of Zr/Hf Fractionation in the Ertan High-Ti Basalt[J].Acta Mineralogica Sinica,2011,31(1):36-42. | |
| Authors: | YAN Zai-fei CHENG Li-jun WANG Hong-tu CHENG Mi ZHOU Jia-xi |
| Institution: | YAN Zai-fei1,CHENG Li-jun2,WANG Hong-tu3,CHENG Mi1,4,ZHOU Jia-xi1,4(1.State Key Laboratory of Ore Deposits Geochemistry,Institute of Geochemistry,Chinese Academy of Sciences,Guiyang 550002,China,2.Institute of Geology and Mine of Chongqing,Chongqing 400042,3.College of Resources and Environment,Chongqing University,Chongqing 400030,4.Graduate School of Chinese Academy of Sciences,Beijing 10039,China) |
| Abstract: | Variations of high-field strength element(HFSE) of the Ertan high-Ti basalts in the Emeishan suggest that Zr/Hf ratios were fractionated.According to the fractionation,the Ertan high-Ti basalts can be devided into high Zr/Hf group and low Zr/Hf group based on Zr/Hf ratios.The fractionation of Zr/Hf is not related with crystallization of basaltic magmas but partial melting and distinct compositions of mantle.This implies that high Zr/Hf basalt and low Zr/Hf basalt possessed distinct compositions of mantle an... |
| Keywords: | high-Ti basalt high-field strength element partial melting heterogeneity |
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