| 变质核杂岩中高Sr低Y型花岗岩的发现及其地质意义 |
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| 引用本文： | 张海祥,张伯友.变质核杂岩中高Sr低Y型花岗岩的发现及其地质意义[J].矿物岩石,2002,22(4):16-20. |
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| 作者姓名： | 张海祥 张伯友 |
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| 作者单位： | 中国科学院广州地球化学研究所,广东,广州,510640 |
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| 基金项目： | 中国科学院创新重要方向性项目 (KZCX2 -10 2 ),国家自然科学基金 (4 9873 0 0 8) |
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| 摘 要： | 在星子变质核杂岩和武功山变质核杂岩中发现了高Sr低Y型花岗岩。这是变质核杂岩构造中高Sr低Y型花岗岩的首次报道。地球化学研究结果表明,它们具有与adakite相似的地球化学特性。在时空分布上,属于中国东部adakite。它们是由玄武岩岩浆底侵到加厚的陆壳底部导致下地壳麻粒岩部分熔融形成的。结合花岗岩的地球化学特片及现有的资料探讨高Sr低Y型花岗岩的形成与变质核杂岩构造之间的成因关系。
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| 关 键 词： | 花岗岩 变质核杂岩 成因关系 地球化学 麻粒岩 |
| 文章编号： | 1001-6872(2002)04-0016-05 |
THE HIGH Sr,LOW Y GRANITE IN THE METAMORPHIC CORE COMPLEX AND ITS GEOLOGICAL SIGNIFICANCE |
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| ZHANG Hai-xiang,ZHANG Bo you.THE HIGH Sr,LOW Y GRANITE IN THE METAMORPHIC CORE COMPLEX AND ITS GEOLOGICAL SIGNIFICANCE[J].Journal of Mineralogy and Petrology,2002,22(4):16-20. |
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| Authors: | ZHANG Hai-xiang ZHANG Bo you |
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| Abstract: | The high Sr and low Y granites were found for the first time in Xingzi and Wugongshan metamorphic core complexes.Geochemical studies indicate that the geochemical characteristics of these granites are similar to those of the adakite. They belong to "Yanshan adakites area" in east China. It is probably a product of partial melting of the lower crust granulite in the thickened crust resulted from underplating of basaltic magma. This paper presents the geochemical characteristics of these granites and discusses the genetic relationship between high Sr,low Y granite and metamorphic core complex. |
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| Keywords: | high Sr low Y granite metamorphic core complex genetic relationship |
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