China Geological Survey Chinese Academy of Geological SciencesHost
科学出版社Publish
Advanced Search
Previous Article Next Article
2023 Vol. 50, No. 6
Article Contents
Article navigation > Geology in China > 2023 > 50(6): 1837-1847
Next Article Previous Article

ZHANG Jinming, CHEN Guangting, CAI Hangjia, TIAN Chengxiu, LEI Xiaoqing. 2023. Geochemical characteristics and zircon U-Pb age of gabbros in the Zhaqiaohe ophiolite mélange, and its limitation on the ocean ridge environment[J]. Geology in China, 50(6): 1837-1847. doi: 10.12029/gc20200416002
Citation: ZHANG Jinming, CHEN Guangting, CAI Hangjia, TIAN Chengxiu, LEI Xiaoqing. 2023. Geochemical characteristics and zircon U-Pb age of gabbros in the Zhaqiaohe ophiolite mélange, and its limitation on the ocean ridge environment[J]. Geology in China, 50(6): 1837-1847. doi: 10.12029/gc20200416002
shu

Geochemical characteristics and zircon U-Pb age of gabbros in the Zhaqiaohe ophiolite mélange, and its limitation on the ocean ridge environment

  • Qinghai Institute of Geological Survey/Qinghai Province Key Laboratory of Geological Process and Mineral Resources of Northern Qinghai-Tibet Plateau, Xining 810012, Qinghai, China

    • Fund Project: Supported by the Qinghai Scholars Project (No.QHS201802) and the 1:50000 Regional Geological Survey of Suli Area, Tianjun County, Qinghai Province (No.1212011140088)
More Information
  • Author Bio: ZHANG Jinming, male, born in 1982, master, senior engineer, majors in mineralogy and petrology; E-mail: 271883992@qq.com
Received Date:  16 April 2020
Revised Date:  02 June 2020
Publish Date:  25 December 2023
    Abstract

  • This paper is the result of geological survey engineering.

     Objective

    Zhaqiaohe ophiolite is located at the junction of the Middle Qilian and South Qilian tectonic belt. The ophiolite in the belt is composed of serpentinite, serpentinized pyroxene peridotite, gabbro, diabase, block bedded altered basalt, a small amount of pillow basalt and lenticular silicite. It is the west extension of the Lachishan ophiolite melange belt in Qinghai Province.

     Methods

    In this paper, the study on the chronology and petrogeochemistry of gabbro in Zhaqiaohe ophiolite has been carried out.

     Results

    According to the characteristic judgment of the main chemical components of the gabbro, such as SiO2, Na2O, K2O, (Fe2O3 + FeO) and MgO, the gabbro is tholeiitic series, belonging to tholeiite. According to the REE distribution pattern, there is no Eu anomaly or weak negative anomaly, indicating that the rock experienced the separation and crystallization of plagioclase in the melting process, and the REE distribution curve is approximately flat; the trace elements have obvious Ta and Sr positive anomaly characteristics, indicating that gabbro in ophiolite in this area has similar characteristics with E-MORB. The results of LA-ICP-MS zircon U-Pb dating show that the gabbro crystallization age is (524.0±2.5) Ma.

     Conclusions

    It is suggested that these gabbros originated from the initial slowness without large-scale melting. It is suggested that the Zhaqiaohe ophiolite may have formed in the oceanic ridge environment during the initial cracking stage of the paleo ocean basin.
    • FullText(HTML)
  • 加载中
    • References
  • Chen Xuanhua, Shao Zhaogang, Xiong Xiaosong, Gao Rui, Liu Xuejun, Wang Caifu, Li Bing, Wang Zengzhen, Zhang Yiping. 2019. Fault system, deep structure and tectonic evolution of the Qilian Orogenic Belt, Northwest China[J]. Geology in China, 46(5): 995-1020 (in Chinese with English abstract).

    Google Scholar

    Coleman R G. 1977. Ophiolites: Ancient oceanic lithosphere?[J]. Mineralogical Magazine, 42(322): 308-308.

    Google Scholar

    Feng Yimin, Cao Xuanduo, Zhang Erpeng, Hu Yunxu, Yang Junlu, Pan Xiaoping, Jia Qunzi, Li Wenming. 2002. Structural Orogenic Process and Dynamics of the West Qinling Orogenic Belt[M]. Xi'an: Xi'an Map Publishing House, 263(in Chinese with English abstract).

    Google Scholar

    Feng Yimin, He Shiping. 1996. Geotectonics and Orogeny in Qilian Mountains[M]. Beijing: Geological Publishing House, 1-135(in Chinese with English abstract).

    Google Scholar

    Fu Changlei, Yan Zhen, Guo Xiaoqin, Niu Manlan. 2014. Geochemistry and SHRIMP zircon U-Pb age of diabases in the Lajishankou ophiolitic melange, South Qilian terrane[J]. Actor Petrologica Sinica, 30(6): 1695-1706

    Google Scholar

    Hou Qingye, Zhang Hongfei, Zhang Benren, Zhao Zhidan, Zhu Yunhai. 2005. Paleogeochronicity of the Laji Mountain in the middle Qilian orogenic belt and its attribution: Geochemical evidence from basic volcanic rocks[J]. Earth Science, 30(1): 61-70(in Chinese with English abstract).

    Google Scholar

    Li Chunyu, Liu Yangwen, Zhu Baoqing, Feng Yimin, Wu Hanquan. 1978. Tectonic History of Qinling and Qilian Mountains[M]. Beijing: Geological Publishing House, 174-187(in Chinese with English abstract).

    Google Scholar

    Li Jianfeng, Zhang Zhicheng, Han Baofu. 2010. Geochronolgy and geochemistry of Early Paleozoic plutons from Subei and Shibaocheng areas, the western segment of Central Qilian and their geological implications[J]. Acta Petrologica Sinica, 26(8): 2431-2344(in Chinese with English abstract).

    Google Scholar

    Li Huaikun, Geng Jianzhen, Hao Shuang, Zhang Yongqing, Li Huiming. 2009. Determination of zircon U-Pb isotope ages by laser Ablation Multi-receiver Plasma Mass Spectrometer (LA-MC-ICPMS)[J]. Acta Mineralogica Sinica, 29(S1): 600-601 (in Chinese with English abstract).

    Google Scholar

    Middlemost E A K. 1994. Naming materials in the magma/igneous rock system[J]. Earth-science Reviews, 37(3-4): 215-224. doi: 10.1016/0012-8252(94)90029-9

    CrossRef Google Scholar

    Miyashiro A, Shido F. 1975. Tholeiitic and calc-alkalic series in relation to the behaviors of titanium, vanadium, chromium, and nickel[J]. American Journal of Science, 275 (3): 265-277. doi: 10.2475/ajs.275.3.265

    CrossRef Google Scholar

    Nicolas A. 1989. Structures of Ophiolites and Dynamics of Oceanic Lithosphere[M]. Dordrecht: Kluwer. 1-367.

    Google Scholar

    Pearce J A, Lippard S J, Roberts S. 1984. Characteristics and tectonic significance of super-subduction zone ophiolites[J]. Geological Society, London, Special Publications, 16(1): 74-94.

    Google Scholar

    Qiu Jiaxiang, Zeng Guangce, Wang Siyuan, Zhu Yunhai. 1997. Early Paleozoic Marine Volcanic Rocks and Mineralization in Laji Mountain[M]. Wuhan: China University of Geosciences Press, 1-118(in Chinese with English abstract).

    Google Scholar

    Sun S S, McDonough W F. 1989. Chemical and isotopic systematics of oceanic basalts: Implications for mantle composition and processes[J]. Geological Society, London, Special Publications, 42(1): 313-345 doi: 10.1144/GSL.SP.1989.042.01.19

    CrossRef Google Scholar

    Tseng C Y, Yang H J, Yang H Y, Liu D Y, Tsai C L, Wu H Q, Zuo G C. 2007. The Dongcaohe ophiolite from the North Qilian Mountains: A fossil oceanic crust of the Paleo-Qilian Ocean[J]. Chinese Science Bulletin, 52(7): 2390-2401

    Google Scholar

    Wang Erqi, Zhang Qi, Burchfiel C B. 2000. Laji Mountain, Qinghai Province: A tectonic window of multi-stage uplift [J]. Chinese Journal of Geology, 35(4): 393-500(in Chinese with English abstract).

    Google Scholar

    Wang Jinrong, Zhang Xinhu, Zhang Xiang, Hui Xinwei, Zhang Benqi, Zhao Lei. 2021. Rock association, genesis and tectonic significance of Mustangshan structure in the western part of Middle Qilian[C]//Abstracts of the National Symposium on Petrology and Geodynamics, 466-468(in Chinese with English abstract).

    Google Scholar

    Wood D A. 1980. The application of a Th-Hf-Ta diagram to problems of tectonomagmatic classification and to establishing the nature of crustal contamination of basaltic lavas of the British Tertiary Volcanic Yrovince[J]. Earth and Planetary Science Letters, 50(1): 1-30. doi: 10.1016/0012-821X(80)90115-6

    CrossRef Google Scholar

    Xia Linqi, Xia Zuchun, Ren Youxiang, Peng Ligui, Zhang Cheng, Yang Jinghua, Wang Xingan, Li Zhipei, Han Song, Huang Zhongxiang. 1991. Marine Volcanic Kocks from Qilian and Qinling Mountains[M]. Wuhan: China University of Geosciences Press, 1-304 (in Chinese with English abstract)

    Google Scholar

    Xiao Xuechang, Chen Guoming, Zhu Zhizhi. 1978. Geological tectonic significance of the ancient ophiolite belt in Qilian Mountains[J]. Acta Geologica Sinica, 52(4): 281-295 (in Chinese with English abstract).

    Google Scholar

    Xiao W, Windley B F, Yong Y, Yan Z, Yuan C, Liu C, Li J. 2009. Early Paleozoic to Devonian multiple-accretionary model for the Qilian Shan, NW China[J]. Journal of Asian Earth Sciences, 35: 323-333. doi: 10.1016/j.jseaes.2008.10.001

    CrossRef Google Scholar

    Xu Zhiqin, Xu Huifen, Zhang Jianxin, Li Haibing, Zhu Zhizhi, Qu Jingchuan, Chen Daizhang, Chen Jinlu, Yang Kaichun. 1994. The proliferative terrane of Caledonian subduction complex in Nanshan of North Qilian Corridor and its dynamics[J]. Acta Geologica Sinica, 68 (1): 1-15 (in Chinese with English abstract).

    Google Scholar

    Yan Zhen, Wang Zongqi, Li Jiliang, Xu Zhiqin, Deng Jinfu. 2012. Tectonic properties and accretionary orogeny of West Qinling wedge[J]. Acta Petrologica Sinica, 28(6): 1808-1828(in Chinese with English abstract)

    Google Scholar

    Zhang Jianxin, Xu Zhiqin, Chen Wen, Xu Huifen. 1995. Discussion on the age of subduction-accretion complex/volcanic arc in the middle part of North Qilian [J]. Journal of Rock and Minerals, 16(2): 112-119 (in Chinese with English abstract)

    Google Scholar

    Zhang Xueting, Yang Shengde. 2007. Qinghai Province Plate Tectonics Research 1/1 Million Qinghai Province Geotectonic Map Description [M]. Beijing: Geological Publishing House, 1-221 (in Chinese with English abstract).

    Google Scholar

    Zhao Wenjin, Mechie J, Feng Mei, Shi Danian, Xue Guangqi, Shu Heping, Song Yang, Yang Hongwei, Liu Zhiwei. 2014. Orogeny in Qilian Mountains and the characteristic structure of the lithospheric mantle[J]. Geology in China, 41(5): 1411-1423(in Chinese with English abstract).

    Google Scholar

    Zheng Ying, Chen Guangting, Zhang Xiaoyong, Song Taizhong, Liang Kunxian. 2017. Geochemical characteristics and chronological significance of Ordovician quartz diorite in Suli area, Middle Qilian [J]. Northwest Geology, 50(4): 588-597 (in Chinese with English abstract).

    Google Scholar

    Zhong Mingjie. 1994. Discovery of Paleozoic in Laji Mountain, Qinghai Province[J]. Geological Review, 22(5): 347-347 (in Chinese with English abstract).

    Google Scholar

    Zuo Guochao, Zhang Shuling, Cheng Jiansheng, Gong Yanxue, Wang Yanbin, Wu Hanquan. 1996. Division of ophiolite belt in Qilian area and its tectonic significance [C]//Proceedings of the Symposium on Ophiolite and Geodynamics, 129-134(in Chinese with English abstract).

    Google Scholar

    陈宣华, 邵兆刚, 熊小松, 高锐, 刘雪军, 王财富, 李冰, 王增振, 张义平. 2019. 祁连造山带断裂构造体系、深部结构与构造演化[J]. 中国地质, 46(5): 995-1020.

    Google Scholar

    冯益民, 曹宣铎, 张二朋, 胡云绪, 杨军禄, 潘晓萍, 贾群子, 李文明. 2002. 西秦岭造山带结构造山过程及动力学[M]. 西安: 西安地图出版社, 263.

    Google Scholar

    冯益民, 何世平. 1996. 祁连山大地构造与造山作用[M]. 北京: 地质出版社, 1-135.

    Google Scholar

    付长垒, 闰臻, 郭现轻, 牛漫兰. 2014. 拉脊山口蛇绿混杂岩中辉绿岩的地球化学特征及SHRIMP锆石U-Pb年龄[J]. 岩石学报, 30(6): 1695-1706.

    Google Scholar

    侯青叶, 张宏飞, 张本仁, 赵志丹, 朱云海. 2005. 祁连造山带中部拉脊山古地慢特征及其归属: 来自基性火山岩的地球化学证据[J]. 地球科学, 30(1): 61-70.

    Google Scholar

    李春昱, 刘仰文, 朱宝清, 冯益民, 吴汉泉. 1978. 秦岭及祁连山构造发展史[M]. 北京: 地质出版社, 174-187.

    Google Scholar

    李建锋, 张志诚, 韩宝福. 2010. 中祁连西段肃北、石包城地区早古生代花岗岩年代学、地球化学特征及其地质义[J]. 岩石学报, 26(8): 2431-2444.

    Google Scholar

    李怀坤, 耿建珍, 郝爽, 张永清, 李惠民. 2009. 用激光烧蚀多接收器等离子体质谱仪(LA-MC-ICPMS)测定锆石U-Pb同位素年龄的研究[J]. 矿物学报, 29(增刊): 600-601.

    Google Scholar

    丘家骧, 曾广策, 王思源, 朱云海. 1997. 拉脊山早古生代海相火山岩与成矿[M]. 武汉: 中国地质大学出版社, 1-118.

    Google Scholar

    王二七, 张旗, Burchfiel C B. 2000. 青海拉鸡山: 一个多阶段抬升的构造窗[J]. 地质科学, 35(4): 393-500.

    Google Scholar

    王金荣, 张新虎, 张翔, 翟新伟, 张本旗, 赵磊. 2012. 中祁连西段野马南山构造岩石组合、成因及其构造意义[C]//全国岩石学与地球动力学研讨会论文摘要集, 466-468.

    Google Scholar

    夏林圻, 夏祖春, 任有祥, 彭礼贵, 张诚, 杨静华, 王兴安, 李智佩, 韩松, 黄忠祥. 1991. 祁连、秦岭山系海相火山岩[M]. 武汉: 中国地质大学出版社, 1-304.

    Google Scholar

    肖序常, 陈国铭, 朱志直. 1978. 祁连山古蛇绿岩带的地质构造意义[J]. 地质学报, 52(4): 281-295.

    Google Scholar

    许志琴, 徐惠芬, 张建新, 李海兵, 朱志直, 曲景川, 陈代璋, 陈金禄, 杨开春. 1994. 北祁连走廊南山加里东俯冲杂岩增生地体及其动力学[J]. 地质学报, 68(1): 1-15.

    Google Scholar

    闫臻, 王宗起, 李继亮, 许志琴, 邓晋福. 2012. 西秦岭楔的构造属性及其增生造山过程[J]. 岩石学报, 28(6): 1808-1828.

    Google Scholar

    张建新, 许志琴, 陈文, 徐惠芬. 1995. 北祁连中段俯冲-增生杂岩/火山弧的时代探讨[J]. 岩石矿物杂志, 16(2): 112-119.

    Google Scholar

    张雪亭, 杨生德. 2007. 青海省板块构造研究1/100万青海省大地构造图说明书[M]. 北京: 地质出版社, 1-221.

    Google Scholar

    赵文津, Mechie J, 冯梅, 史大年, 薛光琪, 宿和平, 宋洋, 杨宏伟, 刘志伟. 2014. 祁连山造山作用与岩石圈地幔的特型结构构造[J]. 中国地质, 41(5): 1411-1423.

    Google Scholar

    郑英, 陈光庭, 张小永, 宋泰忠, 梁坤先. 2017. 中祁连苏里地区奥陶纪石英闪长岩地球化学特征及年代学意义[J]. 西北地质, 50(4): 588-597.

    Google Scholar

    钟明杰. 1994. 青海拉脊山下古生界的发现[J]. 地质论评, 22(5): 347-347.

    Google Scholar

    左国朝, 张淑玲, 程建生, 巩彦学, 王彦斌, 吴汉泉. 1996. 祁连地区蛇绿岩带划分及其构造意义[C]//蛇绿岩与地球动力学研讨会论文集, 129-134.

    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

Figures(7)

Tables(2)

Export Citation
PDF
XML

Article Metrics

Article views(782) PDF downloads(27) 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