|本期目录/Table of Contents|

[1]解小龙,牛漫兰,吴齐,等.秦祁昆结合部三叠纪岩浆岩岩石学特征及其构造环境[J].地球科学与环境学报,2015,37(06):72-81.
　XIE Xiao-long,NIU Man-lan,WU Qi,et al.Petrological Characteristics of Triassic Magmatic Rocks from the Conjunction of Qinling, Qilian and Kunlun Orogens and Their Tectonic Environment[J].Journal of Earth Sciences and Environment,2015,37(06):72-81.
点击复制

秦祁昆结合部三叠纪岩浆岩岩石学特征及其构造环境(PDF)
分享到：

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第37卷
期数:
2015年第06期
页码:
72-81
栏目:
基础地质与矿产地质
出版日期:
2015-11-15

文章信息/Info

Title:
Petrological Characteristics of Triassic Magmatic Rocks from the Conjunction of Qinling, Qilian and Kunlun Orogens and Their Tectonic Environment
文章编号:
1672-6561(2015)06-0072-10
作者:
解小龙; 牛漫兰; 吴齐; 闫臻; 李秀财; 夏文静; 付长垒
1. 合肥工业大学 资源与环境工程学院，安徽 合肥 230009； 2. 中国地质科学院地质研究所，北京 100037
Author(s):
XIE Xiao-long;  NIU Man-lan;  WU Qi;  YAN Zhen;  LI Xiu-cai;  XIA Wen-jing;  FU Chang-lei
1. School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, Anhui, China; 2. Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China
关键词:
岩石学; 三叠纪; 岩浆岩; 构造环境; 大陆边缘弧; 古特提斯洋; 后碰撞; 秦祁昆结合部
Keywords:
petrology;  Triassic;  magmatic rock;  tectonic environment;  continental margin arc;  Palaeo-Tethys ocean;  post-collision;  the conjunction of Qinling;  Qilian and Kunlun orogens
分类号:
P588.1
DOI:
-
文献标志码:
A
摘要:
秦祁昆结合部发育了大量三叠纪岩浆岩，主要沿青海南山断裂、瓦洪山断裂和多禾茂断裂周边分布，总体呈NW—SE向展布。岩石类型复杂多样，包括火山岩和侵入岩。火山岩主要以玄武岩、安山岩、英安岩、流纹岩和火山角砾岩为主；侵入岩主要为辉长岩、闪长岩、花岗闪长岩、花岗岩、石英斑岩等。同位素年代学研究表明：秦祁昆结合部三叠纪岩浆活动主要集中在早—中三叠世和晚三叠世；233~253 Ma代表早—中三叠世岩浆活动，205~225 Ma代表晚三叠世岩浆活动。空间上，岩浆活动呈现出由NW向SE逐渐年轻化的趋势。岩石组合及岩石地球化学特征表明：秦祁昆结合部早—中三叠世岩浆岩形成于古特提斯洋由南向北俯冲的大陆边缘弧环境下，而晚三叠世可能已经逐渐进入后碰撞阶段。
Abstract:
Triassic magmatic rocks widely develop in the conjunction of Qinling, Qilian and Kunlun orogens along Nanshan fault, Wahongshan fault and Duohemao fault in Qinghai with a NW-SE-trending. The types of rocks are complicated and various, including volcanic and intrusive rocks. Volcanic rocks consist of basalt, andesite, dacite, rhyolite and volcanic breccias; intrusive rocks consist of gabbro, diorite, granodiorite, granite and quartz porphyry, etc. Isotopic chronology research reveals that the forming ages of these Triassic igneous rocks are mostly concentrated in Early-Middle Triassic (233-253 Ma) and Late Triassic (205-225 Ma), and gradually decreased from NW to SE. Geochemistry characteristics and rock assemblages suggest that the Early-Middle Triassic magmatic rocks in the conjunction of Qinling, Qilian and Kunlun orogens are formed in continental margin arc setting by the northern subduction of Palaeo-Tethys ocean; however, the Late Triassic magmatic rocks are formed in post-collisional stage.

参考文献/References:

-

相似文献/References:

[1]高林,陈斌.鲁西地块济南辉长岩岩石学、地球化学和Os-Nd-Sr同位素研究[J].地球科学与环境学报,2013,35(02):19.
　GAO Lin,CHEN Bin.Study on Petrology, Geochemistry and Os-Nd-Sr Isotopes of Jinan Gabbro in Luxi Block[J].Journal of Earth Sciences and Environment,2013,35(06):19.
[2]翟明国.大陆动力学的物质演化研究方向与思路[J].地球科学与环境学报,2015,37(04):1.
　ZHAI Ming-guo.New Research Interests and Concept of Material Evolution for Continental Dynamics[J].Journal of Earth Sciences and Environment,2015,37(06):1.
[3]吴荣泽,张树栋,来林.内蒙古乌兰五台地区三叠纪铝质A型花岗岩年代学及地球化学特征[J].地球科学与环境学报,2015,37(06):47.
　WU Rong-ze,ZHANG Shu-dong,LAI Lin.Geochronological and Geochemical Characteristics of Triassic Aluminous Atype Granites in Wulanwutai Area of Inner Mongolia[J].Journal of Earth Sciences and Environment,2015,37(06):47.
[4]N I Volkova,李有柱.中国东北黑龙江杂岩体蓝闪石片岩岩石学研究[J].地球科学与环境学报,2010,32(02):111.
　N I Volkova,LI You-zhu.Petrology of Blueschists of Heilongjiang Complex in Northeast China[J].Journal of Earth Sciences and Environment,2010,32(06):111.
[5]王晓赛,杜瑾雪,王根厚.青藏高原羌塘中部榴辉岩岩石学研究进展[J].地球科学与环境学报,2017,39(05):620.
　WANG Xiao-sai,DU Jin-xue,WANG Gen-hou.Review on Petrology of Eclogites in Central Qiangtang of Qinghai-Tibet Plateau[J].Journal of Earth Sciences and Environment,2017,39(06):620.
[6]王义天*,毛景文**,胡乔青,等.西秦岭西成和凤太矿集区三叠纪多金属成矿作用特征、规律及找矿方向[J].地球科学与环境学报,2021,43(03):409.[doi:10.19814/j.jese.2021.02014]
　WANG Yi-tian*,MAO Jing-wen**,HU Qiao-qing,et al.Characteristics and Metallogeny of Triassic Polymetallic Mineralization in Xicheng and Fengtai Ore Cluster Zones, West Qinling, China and Their Implications for Prospecting Targets[J].Journal of Earth Sciences and Environment,2021,43(06):409.[doi:10.19814/j.jese.2021.02014]

备注/Memo

备注/Memo:
收稿日期:2015-01-22
基金项目:国家自然科学基金项目(41272221);中国地质调查局地质大调查项目(1212011120159)
作者简介:解小龙(1988-),男,山西朔州人,理学硕士研究生,E-mail:462542854@qq.com。
通讯作者:牛漫兰(1972-),女,陕西凤县人,教授,博士研究生导师,理学博士,E-mail:hfnml@163.com。
更新日期/Last Update: 2015-11-27