玻安岩和玻玄岩地球化学特征和成因的探讨

被引：24

作者：

张旗

机构：

[1] 中国科学院地质研究所北京

来源：

地球化学 | 1990年 / 03期

关键词：

玻安岩; 玻玄岩; 地球化学; 岩石成因; 构造环境;

D O I：

10.19700/j.0379-1726.1990.03.002

中图分类号：

学科分类号：

摘要：

玻安岩（boninite）和玻玄岩（bonibasalt）为玻安岩系的两个亚类。与大洋中脊玄武岩（MORB）相比,它们均富大离子亲石元素和亏损高场强元素。玻玄岩相对玻安岩略贫大离子亲石元素及Zr等,其CaO/Al2O3、Zr/Y、Ti/Zr及V/Zr值等均不同于玻安岩,二者系来自不同的源岩并产于不同的构造环境。玻玄岩通常产于弧后盆地扩张的初期阶段,而玻安岩则位于消减带之上的前弧环境。

引用

页码：207 / 215

页数：9

共 9 条

[1] 西藏丁青蛇绿岩中玻镁安山岩类的深成岩及其地质意义
张旗
杨瑞英
不详
[J]. 科学通报 , 1985, (16) : 1243 - 1245
[2] Petrology and geochemistry of Cambrian boninites and low-Ti andesites from Heathcote, Victoria[J] . Anthony J. Crawford,W. E. Cameron.Contributions to Mineralogy and Petrology . 1985 (1)
[3] Petrology and origin of primitive lavas from the Troodos ophiolite, Cyprus[J] . W. E. Cameron.Contributions to Mineralogy and Petrology . 1985 (2)
[4] Two magmatic series with island arc affinities within the vourinos ophiolite[J] . L. Beccaluva,D. Ohnenstetter,M. Ohnenstetter,A. Paupy.Contributions to Mineralogy and Petrology . 1984 (3)
[5] The geochemistry and petrogenesis of an ophiolitic sequence from Pindos, Greece[J] . S. Capedri,G. Venturelli,G. Bocchi,J. Dostal,G. Garuti,A. Rossi.Contributions to Mineralogy and Petrology . 1980 (2)
[6] Petrogenetic implications of Ti, Zr, Y, and Nb variations in volcanic rocks[J] . Julian A. Pearce,Michael J. Norry.Contributions to Mineralogy and Petrology . 1979 (1)
[7] The Khan-Taishir ophiolitic complex of Western Mongolia, its petrology, origin and comparison with other ophiolitic complexes[J] . L. P. Zonenshain,M. I. Kuzmin.Contributions to Mineralogy and Petrology . 1978 (1)
[8] Geochemical evidence for the genesis and eruption setting of lavas from Tethyan ophiolites .2 Pearce JA. . 1980
[9] Tholeiites, basaltic andesites, and andesites from Leg 60 sites: geochemistry, mineralogy, and low partition coefficient elements .2 Bougault,H,Maury,RC,El,Azzouzi,M,Joron,J-L,Cotten,J,Treuil,M. Initial Report of the Deep Sea Drilling Project . 1982

← 1 →