西准噶尔都伦河东岩体镁铁质微粒包体的发现及成因探讨
Discovery and Origin of Mafic Microgranular Enclaves of the Dulunhe Magma Mixing Granite in West Junggar
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摘要: 西准噶尔地区晚古生代岩浆活动强烈, 在达尔布特构造带形成带状展布的花岗岩带。近年来, 对该区域大岩基研究较多, 而对区域内小岩体的研究较为局限, 主要集中在包古图一带成矿斑岩上。都伦河东岩体位于西准噶尔扎依尔山阔依塔斯地区, 其寄主岩石主要为一套中粒石英闪长岩、中粗粒花岗闪长岩、中粗粒黑云母花岗闪长岩组合。于其中新发现丰富的镁铁质微粒包体, 通过对暗色包体的野外展布特征、岩石学等特征研究, 确定其为岩浆混合成因, 是高温的幔源基性岩浆和温度相对较低的壳源酸性岩浆混合作用的产物, 这一认识为探讨都伦河东岩体的成因及壳-幔岩浆的混合作用提供了重要的佐证, 对于西准噶尔地区花岗岩类的成因类型和多样性的研究也具有区域性意义。Abstract: As a result of intensive magmatic activity in Neopaleozoic, large amount of intrusive granites exposed along the Daerbute fault in the center of western Junggar. Many researches have been conducted with the batholites, few focused on the small granite intrusions which mainly distributed in porphyry mineralization belt of the Baogutu region. Dulunhe granite is located in Kuoyitasi area of Zhayi'er Mountain, and its host rock mainly consists of medium-grain quartz diorite, medium-coarse granodiorite and medium-coarse biotite granodiorite. Abundant mafic microgranular enclaves can be found in the host rocks.Field distribution and petrology features of mafic enclave suggest that the Dulunhe granite is resulted from mixing of hyperthermal mantle-derived basic magma and crustal acid magma of relatively lower temperature, which provides important evidence for the origin of Dulunhe granite and crust-mantle magma migmatization in the study area, and also has great regional significance for the studies of the genetic type and diversity of the granite in west Junggar.
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Key words:
- mafic microgranular enclave /
- magma mixing /
- granitoid /
- Dulunhe /
- west Junggar
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庞振甲, 李永军, 赵玉梅, 等.西准阿克巴斯陶铝质A型花岗岩厘定及意义[J].新疆地质, 2010, 28(2):119-124.
PANG Zhenjia, LI Yongjun, ZHAO Yumei, et al.The Determination and Its Significance of Akebasitao Aluminous A-type Granites inwest Junggar, Xinjiang[J].Xinjiang Geology, 2010, 28(2):119-124.
冯乾文, 李锦轶, 刘建峰, 等.新疆西准噶尔红山岩体及其中闪长质岩墙的时代——来自锆石LA-ICP-MS定年的证据[J].岩石学报.2012, 028(09):2935-2949.
FENG Qianwen, LI Jinyi, LIU Jianfeng, et al.Ages of the Hongshan granite and intruding dioritic dyke swarms, in western Junggar, Xinjiang, NW China: Evidence form LA-ICP-MS zircon chronology[J].Acta Petrologica Sinica.2012, 028(09):2935-2949.
魏少妮, 程军峰, 喻达兵, 等.新疆包古图Ⅲ号岩体岩石学和锆石SHRIMP年代学研究[J].地学前缘.2011, 18(02):212-222.
WEI Shaoni, CHENG Junfeng, YU Dabing, et al.Petrology and SHRIMP zircon ages of intrusive body Ⅲ in Baogutu Area, Xinjiang[J].Earth Science Frontiers, 2011, 18(02):212-222.
尹继元, 陈文, 喻顺, 等.西准噶尔包古图富镁闪长质岩墙的时代、地球化学特征以及铜金成矿意义[J].中国地质, 2013, 40(04):1030-1043.
YIN Jiyuan, CHEN Wen, YU Shun, et al.Age, geochemical features and Cu-Au mineralization significance of the magnesiandioritic dykes in Baogutu area of west Junggar[J].Geology in China.2013, 40(04):1030-1043.
张兵, 康磊, 王晓刚, 等.新疆西准噶尔夏尔莆岩体中微粒镁铁质包体特征及意义[J].新疆地质, 2009, 27(3):207-211.
ZHANG Bing, KANG Lei, WANG Xiaogang, et al.Features and Meaning of mafic microgranular enclaves in Xiaerpu granite in western Junggar, Xinjiang[J].Xinjiang Geology, 2009, 27(3):207-211.
金成伟, 张秀棋.新疆西准噶尔花岗岩类的时代及成因[J].地质科学, 1993, 28(1):28-36.
JIN Chengwei, ZHANG Xiuqi.A geochronology and geneses of the western Junggar granitods, Xinjiang, China[J].
Geological Sciences, 1993, 28(1):28-36.
尹继元, 袁超, 王毓婧, 等.新疆西准噶尔晚古生代大地构造演化的岩浆活动记录[J].大地构造与成矿学, 2011, 35(2):278-291.
YIN Jiyuan, YUAN Chao, WANG Yujing, et al.Magmatic Records on the Late Paleozoic Tectonic Evolution of Western Junggar, Xinjiang[J].Geotectonica et Metallogenia, 2011, 35(2):278-291.
刘成东, 张文秦, 莫宣学, 等.东昆仑约格鲁岩体暗色微粒包体特征及成因[J].地质通报, 2002, 21(11):739-744.
LIU Chengdong, ZHANG Wenqin, MO Xuanxue, et al.Features and origin of mafic microgranular enclaves in the Yuegelu granite in the Eastern Kunlun[J].Geological Bulletin of China, 2002, 21(11):739-744.
李永军, 王冉, 李注苍, 等.西秦岭糜署岭岩体镁铁质微粒包体的特征及成因[J].地质通报, 2003, 22(7):506-511.
LI Yongjun, WANG Ran, LI Zhucang, et al. Features and origin of mafic microgranular inclusions in the Mishuling intrusion in the West Qinling[J].Geological Bulletin of China, 2003, 22(7):506-511.
周珣若.花岗岩混合作用[J].地学前缘, 1994, 1(1-2):87-97.
ZHOU Xunruo.Hybridization in the genesis of granitoids[J].Earth Science Frontiers, 1994, 1(1-2):87-97.
王涛.花岗岩混合成因研究及大陆动力学意义[J].岩石学报, 2000, 16(2):161-168.
WANG Tao.Origin of hybrids and the implications for continental dynamics[J].Acta Petrologica Sinica.2000, 16(2):161-168.
李昌年.岩浆混合作用及其研究评述[J].地质科技情报, 2002, 21(4):49-54.
LI Changnian.Comment on the magma mixing and their research[J].Geological Science and Technology Information.2002, 21(4):49-54.
齐有强, 胡瑞忠, 刘燊.岩浆混合作用岩浆综述[J].西北地, 2008, 27(4):409-416.
QI Youqiang, HU Ruizhong, LIU Shen. Comment on the magma mixing and magma summarize[J].Northwestern Geology.2008, 27(4):409-416.
肖庆辉, 邓晋福, 马大铨, 等.花岗岩研究思维与方法[M].北京:地质出版社, 2012, 53-63.
XIAO Qinghui, DENG Jinfu, MA Daquan, et al.Granite research thinking and method[M].Beijing: Geological Publishing House, 2012:53-63.
王德滋, 周新民, 徐夕生, 等.微粒花岗岩类包体的成因[J].桂林冶金地质学院学报, 1992, 12(3):235-240 WANG Dezi, ZHOU Xinmin, XU Xisheng, et al.On Genses of microgranitoid enclaves[J].Journal of Guilin Coliege of Geology, 1992, 12(2);235-241.
马昌前, 杨坤光, 唐仲华.花岗岩类岩浆动力学—理论方法及鄂东花岗岩类例析[M].武汉:中国地质大学出版社, 1994:1-260.
MA Changqian, YANG Kunguang, TANG Zhonghua. Magma-dynamics of granitoids-Theory, method and a case study of the eastern Hubei granotoids[M].Wuhan:Chinese University of Geosciences Press, 1994:1-260.
江万.中酸性侵入岩中铁镁质微粒包体及其意义[J].地质科技情报, 1996, 15(1):13-18.
JIANG Wan.MME and their significance in Crust-Mantle interaction[J].Geological Science and Technology Information, 1996, 15(1):13-18.
王德滋, 谢磊.岩浆混合作用:来自包体的证据[J].高校地质学报, 2008, 14(1):16-21.
WANG Dezi, XIE Lei.Magma Mingling: Evidence from Enclaves[J].Geological Journal of China Universities, 2008, 14(1):16-21.
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