Xi'an Center, China Geological SurveyHost
Advanced Search
Previous Article Next Article
2017 Vol. 50, No. 3
Article Contents
Article navigation > Northwestern Geology > 2017 > 50(3): 1-11
Next Article Previous Article

YU Xiaoliang, CAI Chenglong, WEI Xiaolin, LIU Xixi, YUE Xin, YANG Yanqian, TAN Yan, SHEN Juan. Geochemical Characteristics and Tectonic Significance of the Intrusive Rocks from Middle Triassic Heergetou Sequence in Heergetou Area, East Kunlun[J]. Northwestern Geology, 2017, 50(3): 1-11.
Citation: YU Xiaoliang, CAI Chenglong, WEI Xiaolin, LIU Xixi, YUE Xin, YANG Yanqian, TAN Yan, SHEN Juan. Geochemical Characteristics and Tectonic Significance of the Intrusive Rocks from Middle Triassic Heergetou Sequence in Heergetou Area, East Kunlun[J]. Northwestern Geology, 2017, 50(3): 1-11.
shu

Geochemical Characteristics and Tectonic Significance of the Intrusive Rocks from Middle Triassic Heergetou Sequence in Heergetou Area, East Kunlun

  • 1.

    Geological Survey of Qinghai Province, Xining 810001, Qinghai, China

  • 2.

    No 7 Geological Brigade, Qinghai Provincial Bureau of Nonferrous Metal and Geological Exploration, Xining 810001, Qinghai, China

  • 3.

    Qaidam Integrated Geological Exploration Institute of Qinghai Province, Golmud 816000, Qinghai, China

Received Date:  06 December 2016
Revised Date:  19 July 2017
Publish Date:  15 September 2017
    Abstract
  • The middle Triassic intrusive rocks from Heergetou area in East Kunlun consist of quartz diorite, granodiorite and monzogranite. Based on the study of lithological and geochemistry characteristics of major elements and trace elements, the results show that these rocks are characterized by SiO2-rich (63.82%~72.68%), K-rich (3.55%~4.86%) and alkali-rich (6.67%~8.23%). Their rock Rittmann indexes (δ) range from 2.109 to 2.714, with the characteristic of calc-alkaline series, while their aluminum saturation indexes (A/CNK) vary from 0.94 to 1.03, with the characteristics of metaluminous or weakly peraluminous rocks. Geochemical analysis reveals that their REE is slightly lower (ΣREE is 145.90×10-6~238.35×10-6), and they are enriched in LREE (LREE/HREE ratios are 8.11~13.23), with obvious fractionation of LREE/HREE (LaN/YbN is 9.12~16.49) and moderate negative Eu anomaly (δEu is 0.41~0.72). Spider diagrams of trace elements displays a significant positive Rb-anomaly, a slight negative Ba-anomaly, the enrichments of K and Th, while the values of Ce,Hf,Zr,Sm,Y,Yb are lower than the ridge granitoids obviously. Petrology and elemental geochemistry suggest that the middle Triassic intrusive rocks belong to the high K, cal-alkaline S-type granite and have the characteristics of volcanic arc granite, which is the product of the melting of the crust material in the subduction stage.
    • FullText(HTML)
  • 加载中
    • References
  • 罗照华,邓晋福,曹永清,等. 青海省东昆仑地区晚古生代-早中生代火山活动与区域构造演化[J].现代地质,1999,13(1):51-56.

    Google Scholar

    LUO Zhaohua,DENG Jinfu,CAO Yongqing,et al. On late Palezoic-Early Mesozoic volcanism and regional tectonic evolution of eastern Kunlun,Qinghai Province[J]. Geoscience,1999,13(1):51-56(in Chinese with English abstract).

    Google Scholar

    谌宏伟,罗照华,莫宣学,等.东昆仑造山带三叠纪岩浆混合成因花岗岩的岩浆底侵作用机制[J].中国地质,2005,32(3):386-395.

    Google Scholar

    CHEN Hongwei,LUO Zhaohu,MO Xuanxue,et al. Underplating mechanism of Triassic granite of magma mixing origin in the East Kunlun orogenic belt[J]. Geology in China,2005,32(3):386-395(in Chinese with English abstract).

    Google Scholar

    莫宣学,罗照华,邓晋福,等.东昆仑造山带花岗岩及地壳生长[J].高校地质学报,2007,13(3):403-414.

    Google Scholar

    MO Xuanxue,LUO Zhaohua,DENG Jinfu,et al. Granitoids and Crustal Growth in the East-Kunlun Orogenic Belt[J]. Geological Journal of China Universities,2007,13(3):403-414(in Chinese with English abstract).

    Google Scholar

    罗照华,柯珊,曹永清,等.东昆仑印支晚期幔源岩浆活动[J].地质通报,2002,21(6):292-297.

    Google Scholar

    LUO Zhaohua,KE Shan,CAO Yongqing,et al. Mantle-derived magma activity in the Indosinian,East Kunlun[J]. Geological Bulletin,2002,21(6):292-297(in Chinese with English abstract).

    Google Scholar

    丰成友,张德全,王富春,等.青海东昆仑复合造山过程及典型造山型金矿地质[J].地球学报,2004,25(4):415-422.

    Google Scholar

    FENG Chengyou,ZHANG Dequan,WANG Fuchun,et al. Multiple Orogenic Processes and Geological Characteristics of the Major Orogenic Gold Deposits in East Kunlun Area,Qinghai Province[J]. Acta Geoscientica Sinica,2004,25(4):4115-422(in Chinese with English abstract).

    Google Scholar

    刘成东,莫宣学,罗照华,等.东昆仑壳-幔岩浆混合作用:来自锆石SHRIMP年代学的证据[J].科学通报,2004,49(6):596-602.

    Google Scholar

    LIU Chengdong,MO Xuanxue,LUO Zhaohua,et al. Crust Mantle Magma Mixing of Eastern Kunlun:Evidence from Zircon SHRIMP chronology[J]. Chinese Science Bulletin,2004,49(6):596-602(in Chinese with English abstract).

    Google Scholar

    李瑞保,裴先治,李佐臣,等.东昆仑东段晚古生代-中生代若干不整合面特征及其对重大构造事件的响应[J].地学前缘,2012,19(5):244-254.

    Google Scholar

    LI Ruibao,PEI Xianzhi,LI Zuochen,et al. Geological characteristics of Late Palaeozoic-Mesozoic unconformities and their response to some significant tectonic events in eastern part of Eastern Kunlun[J]. Earth Science Frontiers,2012,19(5):244-254(in Chinese with English abstract).

    Google Scholar

    潘裕生,周伟明,许荣华,等.昆仑山早古生代地质特征与演化[J].中国科学(D辑),1996,26(4):302-307.

    Google Scholar

    PAN Yusheng,ZHOU Weiming,XU Ronghua,et al. Early Paleozoic Geological Characteristic and Evolution of Kunlun Mountain[J]. Science in China(Series D),1996,26(4):302-307(in Chinese with English abstract).

    Google Scholar

    古凤宝,吴向农,姜常义.东昆仑华力西-印支期花岗岩组合及构造环境[J].青海地质,1996,5(1):18-36.

    Google Scholar

    GU Fengbao,WU Xiangnong,JIANG Changyi. Assemblages and tectonic environment of the variscanindosinian granitoid in the eastern Kunlun[J]. Qinghai Geology,1996,5(1):18-36(in Chinese with English abstract).

    Google Scholar

    李荣社,计文化,杨永成,等.昆仑山及邻区地质[M].北京:地质出版社,2008.

    Google Scholar

    LI Rongshe,JI Wenhua,YANG Yongcheng,et al. Geology of Kunlun and its adjacent areas[M]. Beijing:Geological Publishing House,2008(in Chinese with English abstract).

    Google Scholar

    王秉璋,罗照华,李怀毅,等.东昆仑祁漫塔格走廊域晚古生代-早中生代侵入岩岩石组合及时空格架[J].中国地质,2009,36(4):769-782.

    Google Scholar

    WANG Bingzhang,LUO Zhaohua,LI Huaiyi,et al. Petrotectonic assemblages and temporal-spatial framework of the Late Paleozoic-Early Mesozoic intrusions in the Qimantage Corridor of the East Kunlun belt[J]. Geology in China,2009,36(4):769-782(in Chinese with English abstract).

    Google Scholar

    崔美慧,孟繁聪,吴祥珂.东昆仑祁漫塔格早奥陶世岛弧:中基性火成岩地球化学、Sm-Nd同位素及年代学证据[J].岩石学报,2011,27(11):3365-3379.

    Google Scholar

    CUI Meihui,MENG Fancong,WU Xiangke. Early Ordovician Island Arc of Qimantag Mountaim,Eastern Kunln:Evidences from Geochemistry,Sm-Nd Isotope and Geochronology of Intermediate-Basic Igneous Rocks[J]. Acta Petrologica Sinica,2011,27(11):3365-3379(in Chinese with English abstract).

    Google Scholar

    丰成友,王松,李国臣,等.青海祁漫塔格中晚三叠世花岗岩:年代学、地球化学及成矿意义[J].岩石捦犥椬洲椰渱愲琬椲漸渨′搩椺愶朶爵愭洶猷?昮漼牢?琾框故?瑇攠捃瑨潥湮楧捹?極測瑗敁牎灇爠敓瑯慮瑧椬潌湉?潇晵?杣牨慥湮椬瑥楴挠?牬漮挠歍獩孤?嵬???潯甠牌湡慴汥?潔晲?偡敳瑳物潣氠潧杲祡?????????????????????扡牧?匠啡乲?卡?卑????佡乩传啐???坩?????桨敩浮楡挺慃汨?慯湮摯?楯獧潹琬潧灥楯捣?獥祭獩瑳整浲慹琠楡据獤?潭晥?潡捬敬慯湧楥据?扣愠獳慩汧瑮獩??浣灡汮楣捥慳瑛楊潝渮猠?晣潴牡?浐慥湴瑲汯敬?捧潩浣灡漠獓楩瑮楩潣湡?愲渰搱′瀬爲漸挨攲猩猺收猶嬵?崶???敩潮氠潃杨楩据慥汳?匠潷捩楴敨琠祅?潧晬??潨渠摡潢湳?卲灡散捴椩愮氼?偲甾战汬椬捬愌瑍椬澋溢?????????ㄟ???????????戨犄?偢????剓?坁?匨???狁慮湛楊瑝攮?瓳祦炥攬′愰渱搳?琲改挨琶漩渺椲挰?攳渭瘲椱爰漶渮洼敢湲琾孌?嵕???潮畧測瑍慁椠湃??畮楧汱摩楡湮本?偉牁潎捇攠獈獯敮獧孡?崬???潡湬搮漠湅??捬慹搠敐浡楬捥?灺牯敩獣猠??????????ひ??扳物?????剦??????湥捡汮愠癓敵獢?晵牣潴浩?瑮栠整??至?瑬祬灩敳?杯牮慡湬椠瑏敲?潧晥?瑹栠敩??整杨慥渠楅捡??潥浲灮氠敋硵?坬桵楮琠敒??潩畯湮琺慅楶湩?浥慮杣浥愠?獲敯牭椠效獵??污畯敱獩?琠潍?杦物慣渠楒瑯散?浳慛杊浝愮?杁散湴敡猠楐獥孴?嵯???潩畣牡渠慓汩?潩晣??攲漰瀱栳礬猲椹挨愶氩??????????ㄨ????????????????扅牮???女???乢??牲畡散杴攩爮???圾??狋攬慨现礑???圜???栭攟淣榱掗愨汫?猭疵扥摂榩瘐槠猎椰濳渔‖潛晍?琮栗斬???瓺祈瀾攬′朰爰愲渺椱琶漰椭搱猸?倮攼瑢牲漾杗敁湎敇琠楄捥?慩測摚?瑏敕挠瑘潩湮業捩?椮洠灃汲極捳慴瑡楬漠湅獶孯?嵵???敮漠污潮杤礠???????の??????????扴牥?卍奥?噯?卯呩?删?偲????偩潣猠瑖?捬潣污汮楩獣椭潉湮慴汲?獳瑩牶潥渠权汯祭?灬敥牸慳氠畩浮椠湓潯畵獴?来牡慳湴楥瑲敮猠孃?嵩???楍瑝栮潂獥????????????????扥牳???丰??刬?倶‰???倸???传???偮????呷敩捴瑨漠湅楮捧?摩楳獨挠牡楢浳楴湲慡瑣楴漩渮?潢晲￣枓牋憏測楗瑧潎椬擏猚寽?嵉??旳漐泠漁构椠掯憃氎‐叿潜挨楛敍瑝礮?澬昺‰?淺效爾椬挲愰渰??甼汢汲放瑄楅湎?ㄠ?????????????????戬牓???周????併副刬????佬圮??乥?健??偳攠瑯牦漠杒敯湣敫琬楔捥?楴湯瑮敩牣瀠牓敥瑴慴瑩楮潧渠?潮晤?杍物慮湥楲瑡潬楩摺?牴潩捯歮?獍敝爮椠敂獥?番獩楮湧机?浥畯汬瑯楧捩慣瑡楬漠湐極换?灩慳牨慩浮敧琠效牯獵孳?崬?‰?栴攨浩楮挠慃汨??敥潳汥漠杷祩??????????????????t).

    Google Scholar

    张旗,王焰,熊小林,等.埃达克岩和花岗岩:挑战和机遇[M].北京:中国地质大学出版社,2008:45-68.

    Google Scholar

    ZHANG Qi,WANG Yan,XIONG Xiaolin,et al. Adakite and Granite:Challenge and Opportunity[M]. Beijing, China University of Geoscience Press,2008:45-68(in Chinese with English abstract).

    Google Scholar

    PECCERILLO R,TAYLOR S R. Geochemistry of Eocene calc-alkaline volcanic rocks from the Kastamonu area,Northern Turkey[J]. Contributions to Mineralogy and Petrology,1976,58:63-81.

    Google Scholar

    IRVINE T N, BARAGAR W R A. A guide to the chemical classification of the common volcanic rocks[J]. Canadian Journal of Earth Sciences,1971,8:523-548.

    Google Scholar

    MANIAR P D,PICCOLI P M. Tectonic discrimination of granitoids[J]. Geological Society of America Bulletin,1989,101:635-643.

    Google Scholar

    RUSHMER T. Partial melting of two amphibolites:contrasting experimental results under fluid absent conditions[J]. Contrib Mineral Petrol,1991,107:41-59.

    Google Scholar

    PEARCE J A,HARRIS B W, TINDLE A G. Trace element dis

    Google Scholar

    • Relative Articles
  • Cited by
  • Supplements
    • Proportional views
  • 加载中
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索
Export Citation
PDF
XML

Article Metrics

Article views(2464) PDF downloads(2133) Cited by(0)

Access History

Other Articles By Authors

Catalog

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    版权所有：中国地质调查局发展研究中心 copyright @2020