|本期目录/Table of Contents|

[1]杨高学,李永军,司国辉,等.东准噶尔卡拉麦里地区黄羊山岩体岩石学特征[J].地球科学与环境学报,2009,31(01):34-41.
　YANG Gao-xue,LI Yong-jun,SI Guo-hui,et al.Petrological Characteristic of the Huangyangshan Intrusion in Kalamaili Area, East Junggar, Xinjiang[J].Journal of Earth Sciences and Environment,2009,31(01):34-41.
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第31卷
期数:
2009年第01期
页码:
34-41
栏目:
基础地质与矿产地质
出版日期:
2009-03-15

文章信息/Info

Title:
Petrological Characteristic of the Huangyangshan Intrusion in Kalamaili Area, East Junggar, Xinjiang
文章编号:
1672-6561(2009)01-0034-08
作者:
杨高学1; 李永军1; 司国辉1;  吴宏恩2; 张永智2; 金 朝1
(1.长安大学 地球科学与资源学院,陕西 西安 710054; 2.新疆维吾尔自治区有色地质矿产勘查院,新疆 乌鲁木齐 830000)
Author(s):
YANG Gao-xue1;  LI Yong-jun1;  SI Guo-hui1;  WU Hong-en2;  ZHANG Yong-zhi2;  JIN Zhao1
(1.School of Earth Sciences and Resources, Chang'an University, Xi'an 710054, Shaanxi, China; 2.Xinjiang Institute of Geological Exploration for Nonferrous Resources, Urumqi 830000, Xinjiang, China)
关键词:
岩石学特征; 包体; 岩浆混合作用; 黄羊山岩体; 东准噶尔
Keywords:
petrological characteristic;  enclaves;  magma mixing;  Huangyangshan intrusion;  East Junggar
分类号:
P581
DOI:
-
文献标志码:
A
摘要:
在前人研究基础上,对黄羊山岩体取得了新的认识:萨北岩体和苏吉泉岩体只是黄羊山岩体的一个组成部分,并非单独岩体。黄羊山岩体寄主岩石划分为中粒黑云母碱长花岗岩、中粒角闪石碱长花岗岩、中粒钠铁闪石碱长花岗岩、中细粒钠铁闪石碱长花岗岩、细粒黑云母碱长花岗岩和细粒混合花岗岩(含石墨)6个单元。岩石学及矿物特征表明,岩体有从黑云母碱长花岗岩向钠铁闪石碱长花岗岩演化的趋势,可能是幔源重熔分异的碱性花岗岩(A型花岗岩),而闪长质微细粒包体及大量发育的闪长(玢)岩脉和辉绿(玢)岩脉提供了有力的佐证,初步研究认为黄羊山岩体形成于后碰撞张性环境,其就位与卡拉麦里断裂有关,其形成和演化标志了准噶尔地区显生宙幔源岩浆活动及其分异产物导致大陆地壳垂向生长过程。
Abstract:
Based on predecessor's research work, new understanding about Huangyangshan intrusion has been got. Sabei and Sujiquan granites are only parts of the Huangyangshan intrusion, but not the single intrusion. The host rock of Huangyangshan intrusion may be divided into 6 units, that is, medium-grain biotite alkali-feldspar granite,medium-grain amphibole alkali-feldspar granite, medium-grain arfvedsonite alkali-feldspar granite, medium-fine grain arfvedsonite alkali-feldspar granite, fine grain biotite alkali-feldspar granite and fine-grain mixing granite(including graphite). Petrological and mineralogical Characteristics show that the rock evolution presents the tendency from biotite alkali-feldspar granite to arfvedsonite alkali-feldspar granite that may belong to alkali granite(A-type granite)produced by remelting differentiation from mantle magma, which is powerfully evidenced by the existence of microgranular dioritic enclaves,massive dioritic(porphyrite)dike and diabase(porphyrite)dike. It is thought that the emplacement of Huangyangshan intrusion took place in post-collision environment and is related with the Kalamaili fault. The formation and evolution of both enclaves and host granites in Junggar region prove that the process of vertical growth of continental crust resulted from the post-collision mantle-derived magmas and differentiation product in late Paleozoic.

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备注/Memo

备注/Memo:
收稿日期:2008-04-20
基金项目: 国家自然科学基金项目(40534020); 新疆维吾尔自治区国土资源厅国土资源大调查项目(QD200508)
作者简介: 杨高学(1980-),男,宁夏固原人,理学硕士研究生,从事造山带与盆地分析研究。E-mail:mllygx@126.com

更新日期/Last Update: 2009-03-20