| 隐藏在苏鲁地体斜长角闪岩锆石中超高压变质作用的信息 |
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| 引用本文： | 刘福来,张泽明,许志琴,杨经绥,S．Maruyama.隐藏在苏鲁地体斜长角闪岩锆石中超高压变质作用的信息[J].地球学报,2003,24(5):409-414. |
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| 作者姓名： | 刘福来 张泽明 许志琴 杨经绥 S．Maruyama |
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| 作者单位： | 中国地质科学院地质研究所，北京100037;中国地质科学院地质研究所，北京100037;中国地质科学院地质研究所，北京100037;中国地质科学院地质研究所，北京100037;Department of Earthand Planetary Science, Tokyo Institute of Technology, Tokyo 152-8551, Japan |
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| 基金项目： | 国土资源部百名优秀青年科技人才计划，国土资源部科技项目“中国大陆科学钻探工程综合研究”(项目编号:2002207) |
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| 摘 要： | 运用激光拉曼和阴极发光技术，配备电子探针测试，发现苏鲁地体地表露头和中国大陆科学钻探工程预先导孔CCSD-PP1和CCSD-PP2斜长角闪岩锆石中均保存以柯石英为代表的典型超高压矿物组合：柯石英 石榴石 绿辉石 金红石；柯石英 石榴石 绿辉石；柯石英 石榴石 绿辉石 多硅白云母 金红石 磷灰石；柯石英 绿辉石 金红石；柯石英 菱镁矿。该类矿物包体组合与苏鲁地体超高压榴辉岩的峰期矿物组合十分相似，表明斜长角闪岩可能是由超高压变质的榴辉岩在构造抬升过程中退变质而成。
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| 关 键 词： | 超高压矿物包体 锆石 激光拉曼 斜长角闪岩 苏鲁地体 |
Ultrahigh Pressure Metamorphic Traces Hidden in Zircons from Amphibolites of Sulu Terrane,Eastern China |
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| Institution: | Institute of Geology, CAGS, Beijing 100037;Institute of Geology, CAGS, Beijing 100037;Institute of Geology, CAGS, Beijing 100037;Institute of Geology, CAGS, Beijing 100037;Department of Earthand Planetary Science, Tokyo Institute of Technology, Tokyo 152-8551, Japan |
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| Abstract: | Using the Laser Raman spectroscopy,cathodoluminescence method and electron microprobe analysis,the authors recognized coesite inclusions together with garnet, omphacite, phengite, magnesite, rutile and apatite inclusions in zircons from all amphibolite samples in pre pilot drillhole CCSD PP1 and CCSD PP2 as well as in outcrops of Sulu terrane. The mineral inclusion assemblage preserved in zircons is similar to that in the matrix of eclogites formed during the UHP metamorphism. These data indicate that amphibolites might have been formed by the retrogression of UHP eclogites in the uplifting of Sulu terrane. The research is of great significance in probing into the genetic mechanism of amphibolites and the fluid rock interaction during the tectonic uplift of Sulu terrane. |
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| Keywords: | UHP mineral inclusion zircon Laser Raman amphibolite Sulu terrane |
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