| 巴楚瓦吉里塔格火成杂岩体岩石学研究 |
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| 引用本文： | 李昌年,路凤香,陈美华.巴楚瓦吉里塔格火成杂岩体岩石学研究[J].新疆地质,2001,19(1):38-42. |
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| 作者姓名： | 李昌年 路凤香 陈美华 |
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| 作者单位： | 中国地质大学地球科学学院, |
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| 基金项目： | 国家305项目（969150405）资助 |
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| 摘 要： | 根据地质学、岩石学、地球化学研究，确定瓦吉里塔克火成杂岩体由3部分组成；层状岩体、角砾岩岩筒和晚期脉岩，其形成的年龄分别为357．9－306Ma、252.7Ma、231.3Ma。证实层状岩体为岩浆房原地分离结晶作用形成，具有碱性岩浆的肯尼迪演化趋势并发育液态不混溶作用，最终形成具有实际矿物霞石的过碱性岩。确定角砾岩筒并非金伯质，实为角砾云母橄辉岩。确定晚期脉岩与角砾云母橄辉岩为同期岩浆活动的产物，而且均发生在层状岩体固结之后。此外，根据它们富含H2O和富集大离子亲石元素的特点推测，该岩浆来源于富含流体相且不同于层状岩体的源区。
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| 关 键 词： | 巴楚 瓦吉里塔克 火成杂岩体 岩石学 地质学 地球化学 层状岩体 角砾岩岩筒 脉岩 |
| 文章编号： | 1000-8845（2001）01-038-05 |
| 修稿时间： | 2000年11月22 |
RESEARCH ON PETROLOGY OF
THE WAJILITAG COMPLEX BODY IN NORTH EDGE IN THE TALIMU BASIN |
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| LI Chang-nian,LU Fung-siang,CHENG Mei-hua.RESEARCH ON PETROLOGY OF
THE WAJILITAG COMPLEX BODY IN NORTH EDGE IN THE TALIMU BASIN[J].Xinjiang Geology,2001,19(1):38-42. |
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| Authors: | LI Chang-nian LU Fung-siang CHENG Mei-hua |
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| Abstract: | based on reseach on geology.Petrology Geochimistry and geochronology this paper determines that the Wajilitag igneous complex body is composed of three parts: the super mafic-mafic layer dody; the rock thic of brecciated Mica-olivine pyroxenite and ; later alkalic dike,their age is 306~357.9 Ma, 252.7 Ma and 231.3 Ma, espectively.It indicated that layer body reseult from fractional crystallization in sutu;Showed that alkaline magma is a kennedy's evolution frmed peralkaline rocks with nepheline mode.We presume that thic of brecciated rocks in not Kimberlitic quality but is brecciated mica-olivine pyroxenite.We recognize that later vein rocks and brecciated mica-olivine Pyroxenite is a product of contemporaneous magmutizm beror solidification of layer body.Besids this;based on their aundance in H2O and LIL we determines that magma result from source abundance in flud phase and it is different form layer body. |
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| Keywords: | Basun Waijlitak the complex body the Petrology |
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