img

QQ群聊

img

官方微信

高级检索

黄金科学技术 ›› 2017, Vol. 25 ›› Issue (5): 30-38.doi: 10.11872/j.issn.1005-2518.2017.05.030

• 矿产勘查与资源评价 • 上一篇    下一篇

桂西阳圩地区基性岩地球化学特征及区域构造背景分析

陈丽菲1,2,付伟 1,3*,黄祥林2,陈宏毅 1,同锐灵 2   

  1. 1.桂林理工大学地球科学学院,广西  桂林   541006;
    2.广西壮族自治区区域地质调查研究院,广西  桂林   541003
    3.广西隐伏金属矿产勘查重点实验室,广西  桂林   541006
  • 收稿日期:2017-07-19 修回日期:2017-08-29 出版日期:2017-10-30 发布日期:2018-02-12
  • 通讯作者: 付伟(1980-),男,山西太原人,教授,从事矿床学与地球化学方面的教学与研究工作。fuwei@glut.edu.cn
  • 作者简介:陈丽菲(1988-),女,山西长治人,硕士研究生,从事岩石学、矿物学和矿床学研究工作。769524528@qq.com
  • 基金资助:

    广西找矿突破战略行动地质矿产勘察项目“广西1∶5万者仙圩、大琶、剥隘、阳圩区域地质矿产调查”(编号:桂国土资函[2015]436号)和广西自然科学基金项目“广西离子吸附型稀土矿床的表生成矿系统研究”(编号:2014GXNSFAA118304)联合资助

Analysis on Geochemical Characteristics and Regional Tectonic Background of Mafic Rocks in Yangxu Area,Western Guangxi

CHEN Lifei 1,2,FU Wei 1,3,HUANG Xianglin 2,CHEN Hongyi 1,TONG Ruiling 2   

  1. 1.College of Earth Sciences,Guilin University of Technology,Guilin    541006,Guangxi,China;
    2.Institute of Regional Geological Survey of Guangxi,Guilin    541003,Guangxi,China;
    3.Guangxi Key Laboratory of Hidden Metallic Ore Deposits Exploration,Guilin    541006,Guangxi,China
  • Received:2017-07-19 Revised:2017-08-29 Online:2017-10-30 Published:2018-02-12

摘要:

桂西地区位于华南板块西南缘,越北地块以北。区内广泛发育的基性岩脉是扬子地块西部晚古生代构造—岩浆作用的重要组成部分。阳圩一带发育的基性岩与峨眉山火成岩具有相似的地球化学性质,轻、重稀土分馏明显,富集大离子亲石元素(LILE)和高场强元素(HFSE),显示出似OIB地球化学特征,与峨眉山高Ti玄武岩具高度亲缘性,同时也反映其源区具有板内岩浆作用的特征;从微量元素比值及相关图解对岩浆源区和构造环境进行判别,结果表明阳圩基性岩来自富集OIB地幔源区,结合岩石地球化学特征及区域地质背景,认为阳圩基性岩可能为峨眉山地幔柱岩浆作用的产物,总体上与板内岩浆环境有关,其成因可能受到板内岩浆和岛弧玄武岩浆的共同作用。

关键词: 基性岩, 地球化学, 地幔柱, 高Ti玄武岩, 岩浆作用, 阳圩, 桂西地区

Abstract:

Western Guangxi is located in the southwestern margin of the South China Block and the northern side of North Vietnam Block.Mafic dikes which widely developed in this region is an important component of the tectonic and magmatism in Late Paleozoic of Yangtze block.Yangxu mafic rocks have similar geochemical properties with Emeishan basalt,it shows an enrichment of LILE,HFSE,and significant fractionation between LREE and HREE,that akin to ocean island basalts OIB.These suggestive of an affinity with the Emeishan high-Ti basalts and also reflects the source have characteristics of intraplate magmatism.The ratio of trace elements and related diagrams may indicate that Yangxu mafic rocks came from the enriched OIB mantle source region.Combined with the geochemical characteristics of rocks and regional geological background,it is considered that Yangxu mafic rocks may be the products of magmatism of the mantle plume of Emeishan.On the whole,it is related to the intraplate magmatic environment,and its genesis may be affected by the interaction between intraplate magma and island arcbasalt.

Key words: mafic rocks, geochemistry, mantle plume, high-Ti basalts, magmatism, Yangxu, western Guangxi Province

中图分类号: 

  • P596

[1] Song Xieyan,Wang Yulan,Gao Zhimin,et al.Emeishan basalts,Emei tafrogeny and mantle plume[J].Geology Geochemistry,1998(1):47-52.[宋谢炎,王玉兰,曹志敏,等.峨眉山玄武岩、峨眉地裂运动与幔热柱[J].地质地球化学,1998(1):47-52.]
[2] Zhang Zhaochong,Wang Fusheng,Fan Weiming,et al.A discussion on some problems concerning the study of the Emeishan basalts[J].Acta Petrologica et Mineralogica,2001,20(3):239-246.[张招崇,王福生,范蔚茗,等.峨眉山玄武岩研究中的一些问题的讨论[J].岩石矿物学杂志,2001,20(3):239-246.]
[3] Liu Chengying,Zhu Rixiang.Discussion on geodynamic significance of the Emeishan basalts[J].Earth Science Frontiers,2009,16(2):52-69.[刘成英,朱日祥.试论峨眉山玄武岩的地球动力学含义[J].地学前缘,2009,16(2):52-69.]
[4] Xu Y G,Chung S L,Jahn B,et al.Petrologic and geochemical constraints on the petrogenesis of Permian Triassic Emeishan flood basalts in southwestern China[J].Lithos,2001,58(3/4):145-168.
[5] Wang C Y,Zhou M F,Qi L.Permian flood basalts and maficintrusions in the Jinping(SW China)-Song Da (northernsulfide segregation[J].Chemical Geology,2007,243(3/4): Vietnam) district:Mantle sources,crustal contamination and 317-343.
[6] Huang Wenlong,Liu Xijun,Shi Yu,et al.Geochemistry of extreme high Ti/Y maficrocks from western Guangxi:Implications for the primitive magma of high Ti basalt of Emeishan mantle plume [J].Geological Bulletin of China,2015,34(2/3):474-486.[黄文龙,刘希军,时毓,等.桂西巴马地区极高Ti/Y值基性岩地球化学特征——来自峨眉山地幔柱高Ti母岩浆[J].地质通报,2015,34(2/3):474-486.
[7] Li Zhenglin,Liu Xijun,Xu Jifeng,et al.Geochemical evolution characteristics and regional tectonic significance of mafic rocks from Youjiang Basin[J].Journal of Guilin University of Technology,2015,35(4):727-735.[李政林,刘希军,许继峰,等.右江盆地基性岩的地球化学演化特征及其区域构造意义[J].桂林理工大学学报,2015,35(4):727-735.]
[8] Zhang Xiaojing,Xiao Jiafei.Zircon U-Pb geochronology,Hf isotope and geochemistry study of the late Permian diabases in the northwest Guangxi autonomous region[J].Bulletin of Mineralogy,Petrology and Geochemistry,2014,33(2):163-176.[张晓静,肖加飞.桂西北玉凤、巴马晚二叠世辉绿岩年代学、地球化学特征及成因研究[J].矿物岩石地球化学通报,2014,33(2):163-176.]
[9] Liu Yuandong,Pang Baocheng,Fu Wei,et al.REE characteristics and ore-forming indicator of the Shijia gold deposit in northwest of Guangxi[J].Mineral Resources and Geolo- gy,2011,25(4):317-323.[刘远栋,庞保成,付伟,等.桂西北世加金矿稀土元素特征及其成矿指示意义[J].矿产与地质,2011,25(4):317-323.]
[10] Liao Shuai,Liu Xijun,Shi Yu,et al.The interactive product of mantle plume and arc magmatism:Proofs of basic rock from mineral deposit of the gold mine of diabase in the north of Guangxi[J].Acta Mineralogica Sinica,2013,33(S2):111-113.[廖帅,刘希军,时毓,等.地幔柱与岛弧岩浆相互作用的产物:来自桂西辉绿岩型金矿中基性岩证据[J].矿物学报,2013,33(增2):111-113.]
[11] Wang Zhongcheng,Wu Haoruo,Kuang Guodun,et al.Characteristics of the Late Paleozoic oceanic basalts and their eruptive environments in west Guangxi[J].Acta Petrologica Sinica,1997,13(2):260-265.[王忠诚,吴浩若,邝国敦.桂西晚古生代海相玄武岩的特征及其形成环境[J].岩石学报,1997,13(2):260-265.]
[12] Zhang Qi,Qian Qing,Wang Yan,et al.Late Paleozoic basic magmatism from SW Yangtze Massif and evolution of the Paleo-Tethyan Ocean[J].Acta Petrologica Sinica,1999,15(4):576-583.[张旗,钱青,王焰,等.扬子地块西南缘晚古生代基性岩浆岩的性质与古特提斯洋的演化[J].岩石学报,1999,15(4):576-583.]
[13] Fan Weiming,Wang Yuejun,Peng Touping,et al.Basalt geochronology of Ar-Ar and U-Pb the Late Paleozoic in the west of Guangxi and its constraint on Eruptive Time of Emei[J].Chinese Science Bulletin,2004,49(18):1892- 1900.[范蔚茗,王岳军,彭头平,等.桂西晚古生代玄武岩Ar-Ar和U-Pb年代学及其对峨眉山玄武岩省喷发时代的约束[J].科学通报,2004,49(18):1892-1900.]
[14] Chen Xuefeng,Liu Xijun,Xu Jifeng,et al.Geochemistry of mafic rocks in the Napo area,western Guangxi,South China:Evidence for interaction between the Emeishan mantle plume and Paleotethyan Subduction[J].Geotectonica et Me- tallogenia,2016,40(3):531-548.[陈雪峰,刘希军,许继峰,等.桂西那坡基性岩地球化学:峨眉山地幔柱与古特提斯俯冲相互作用的证据[J].大地构造与成矿学,2016,40(3):531-548.]
[15] The Guangxi Zhuang Autonomous Region Bureau of Geology and Mineral Resources.Regional Geology of the Guangxi[M].Beijing:Geological Publishing House,1985.[广西壮族自治区地质矿产局.广西壮族自治区区域地质志[M].北京:地质出版社,1985.]
[16] Survey Team of Guangxi Bureau of Geology Mineral.The report of regional geology in Tianlin with a proportional scale 1∶200 000[R].Nanning:Guangxi Bureau of Geology Mineral 1971.[广西地质矿产局区域地质调查测量队.1∶20万田林幅区域地质调查报告[R].南宁:广西壮族自治区地质矿产局,1971.]
[17] Hofmann A W.Chemical differentiation of the Earth:The relationship between mantle,continental crust,and oceanic crust[J].Earth and Planetary Science Letters,1988,90(3): 297-314.
[18] Huang Xianglin,Lu Gang,Wu Lihe,et al.The Report of regional geology in Xiatang,Longchuan,Baise and Kunxu with a proportional scale 1∶50 000[R].Nanning:Institute of Regional Geological of Guangxi,2014.[黄祥林,陆刚,吴立河,等.1∶5万下塘幅、龙川幅、百色市幅、坤圩幅区域地质调查报告[R]. 南宁:广西壮族自治区地质调查院,2014.]
[19] Castillo P R,Clague D A,Davis A S,et al.Petrogenesis of Davidson Seamount lavas and its implications for fossil sp-reading center and intraplate magmatism in the eastern Pa- cific[J].Geochemistry Geophysics Geosystems,2010,11(2):481-492.
[20] Lei Min,Zhao Zhidan,Hou Qingye,et al.Geochemical and Sr-Nd-Pb isotopic characteristics of Dalabute ophiolite,Xinjiang:Comparison between the Paleo-Asian ocean and the Tethyan mantle domains[J].Acta Petrologica Sinica,2008,24(4):661-672.[雷敏,赵志丹,侯青叶,等.新疆达拉布特蛇绿岩带玄武岩地球化学特征:古亚洲洋与特提斯洋的对比[J].岩石学报,2008,24(4):661-672.]
[21] Sun S S,Mc Donough W F.Chemical and isotopic systematics of oceanic basalts:Implications for  mantle composition and processes[J].Geological Society London,Special Publications,1989,42(1):313-345.
[22] Boynton W V.Cosmochemistry of the rare earth elements[J].Developments in Geochemistry,1984,2(2):63-114.
[23] Zhang Yunqiang,Chen Haiyan,Li Xian,et al.Geochemistry of the Mesoproterozoic diabase sills from Yanshan Mountain area in the northern part of North China Plate[J].Geology in China,2014,41(2):351-360.[张运强,陈海燕,李先,等.华北陆块北部燕山地区中元古代辉绿岩地球化学特征及成因意义[J].中国地质,2014,41(2):351-360.]
[24] Pearce J A,Norry M J.Petrogenetic implications of Ti,Zr,Y,and Nb variations in volcanic rocks[J].Contributions to Mineralogy and Petrology,1979,69(1):33-47.
[25] Wood D A.A variably veined suboceanic upper mantlegenetic significance for mid-ocean ridge basalts from geochemical evidence[J].Geology,1979(7):499-503.
[26] Meschede M.A method of discriminating between different types of mid-ocean ridge basalts and continental tholeiites with the Nb-Zr-Y diagram[J].Chemical Geology,1986,56(3):207-218.

[1] 王斌, 宋明春, 刘志宁, 李健, 董磊磊, 张艺多, 蒋雷, 王润生, 董小涛, 刘家良. 胶东地区早白垩世周官高镁闪长岩体年代学、地球化学特征及其构造意义[J]. 黄金科学技术, 2024, 32(5): 798-812.
[2] 周晓萍, 宋明春, 刘向东, 闫春明, 胡兆君, 苏海岗, 胡秉谦, 周宜康. 胶东三山岛金矿床巨斑花岗岩的形成时代、成因及对金成矿的启示[J]. 黄金科学技术, 2024, 32(5): 813-829.
[3] 张勇, 李水平, 荆鹏, 冯攀. 河南嵩县九仗沟金矿床地球化学特征与勘查模式[J]. 黄金科学技术, 2024, 32(2): 258-269.
[4] 刘风龙, 王加恩, 刘远栋, 孙大亥, 程海燕, 胡艳华, 黄雯, 王振, 潘少军. 浙江衢州九华山侵入岩年代学和地球化学特征[J]. 黄金科学技术, 2024, 32(1): 31-40.
[5] 李利, 王国光, 李海立, 肖惠良, 陈乐柱. 赣南印支期白石钨(铜)矿床成矿岩体地球化学特征及地质意义[J]. 黄金科学技术, 2023, 31(5): 736-751.
[6] 王振, 杨镇熙, 陈海云, 方成豪, 樊新祥. 甘肃北山华窑山一带1/5万水系沉积物地球化学特征及金、钨找矿远景[J]. 黄金科学技术, 2023, 31(4): 546-559.
[7] 崔文玮,晁会霞,何虎军,杨兴科,杨俊杰,朱昊磊,吴旭. 海南富文金矿床矿石、围岩及地层元素地球化学特征及地质意义[J]. 黄金科学技术, 2023, 31(3): 423-432.
[8] 张勇,张爱奎,何书跃,刘智刚,刘永乐,张鹏,孙非非. 东昆仑祁漫塔格地区库德尔特金矿区花岗闪长岩的时代、成因及其构造意义[J]. 黄金科学技术, 2023, 31(1): 1-14.
[9] 曹振梁,刘学龙,李守奎,刘思晗,李方兰,周博文. 滇西北燕山期含矿花岗岩与全球埃达克岩地球化学特征对比[J]. 黄金科学技术, 2023, 31(1): 15-25.
[10] 陈海云,龚振中,杨镇熙,任长旭,周兆明. 甘肃北山音凹峡地区水系沉积物测量地球化学特征及找矿靶区优选[J]. 黄金科学技术, 2023, 31(1): 37-49.
[11] 王建国,张世珍,邢佳,王志男,魏生云,胡建. 乌兰茶卡北山含矿伟晶岩地球化学特征及地质意义[J]. 黄金科学技术, 2022, 30(6): 809-821.
[12] 符安宗,余欣朗,李成禄,杨文鹏,杨元江,郑博,赵瑞君. 元素比值在嫩江—黑河地区金成矿预测的应用初探[J]. 黄金科学技术, 2022, 30(6): 822-834.
[13] 张玉鹏,史冬岩,吕明奇,李成禄,张坤,唐伟. 岩屑地球化学测量在黑龙江省三道湾子浅覆盖区的找矿应用效果[J]. 黄金科学技术, 2022, 30(5): 651-663.
[14] 邢佳,王建国,王志男,胡建,魏生云. 青海赛坝沟金矿辉长岩地球化学组成及成因分析[J]. 黄金科学技术, 2022, 30(5): 664-675.
[15] 胡宝群,高海东,王运,张宝林,吕古贤,申玉科,郭涛. 玲珑金矿田含矿断裂的基岩地球化学特征及找矿潜力评价[J]. 黄金科学技术, 2022, 30(4): 518-531.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
No Suggested Reading articles found!