新疆博格达东段阿克铁克协山地区辉绿岩岩石地球化学特征及其SHRIMP U-Pb测年意义
Geochemical Characteristics and SHRIMP U-Pb Age Significance of Diabase in Aketiekexie Moutain Area, East of Bogda, Xinjiang
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摘要: 通过对阿克铁克协山地区的辉绿岩研究,发现其既具有板内玄武岩的特征(由主量元素特征显示强过铝质, 碱性系列), 又显示出板块边缘的“假象”特征(主要是由于陆壳物质的混染造成的Nb、Ti等高场强元素的亏损), 而且辉绿岩REE分布模式明显以Nd/Pm、Gd、Ho/Er为分界点, 形成4条曲线, 明显具有“MM”型, 显示出了良好的四分组效应或四重效应。阿克铁克协山地区的辉绿岩SHRIMP U-Pb测年, 显示具有2期年龄, 上交点年龄为(408±10)Ma,时间为早泥盆世, 代表岩浆的结晶年龄;下交点年龄为(301±10)Ma, 应为晚石炭世一次热构造事件。结合前人研究, 认为博格达造山带属于裂谷而并非岛弧环境, 博格达裂谷演化始于东段, 而且东段早于西段, 东段的演化是以早泥盆世的辉绿岩岩浆活动为标志。Abstract: Based on the study of diabase in Aketiekexie Mountain region, intraplate basalt characteristics(strong peraluminous and alkaline series), and illusion of the plate boundary(mainly caused by contamination of continental crustal material loss of the Nb, Ti high field strength elements) were identified. In addition, the REE distribution patterns of the diabase were four MM-type curves divided by Nd/Pm, Gd and Ho/Er, showing tetrad effect or quadruple effect. SHRIMP U-Pb dating results display two ages, which are upper intersection point age of (408±10)Ma in early Devonian, representing magma crystallization periods, and lower intersection age of (301±10)Ma, coinciding the thermal tectonic event in late Carboniferous. Combining with previous researches, Bogda orogenic belt belongs to rift tectonic setting rather than island arc environment. Bogda rift evolution first begins in the east section and the evolution is marked by diabase magma activities in early Devonian.
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Key words:
- geochemistry /
- diabase /
- U-Pb dating /
- Bogda
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陈登超, 赵省民, 邓坚.新疆东部博格达山北侧石炭系碎屑锆石U-Pb定年及其地质意义[J].地质学报, 2010, 84(12):1770-1780.
CHEN Dengchao, ZHAO Shengming, DENG Jian.U-Pb dating of carboniferous sandstone detrital zircon and geological singnificance from the north of the Bogda mountains, eastern Xinjiang, and its geological significances[J].Acta Geologica Sinica, 2010, 84(12):1770-1780.
陈邦学, 穆利修, 赵同阳, 等.新疆博格达山侵入岩地质特征及构造意义[J].西部探矿工程, 2014, 26(5):166-170.
CHEN Bangxue, MU Lixiu, ZHAO Tongyang, et al.Intrusive rocks geological features and structure significance in Bogda[J].West China Exploration Engineering, 2014, 26(5):166-170.
陈超, 吕新彪, 曹晓峰, 等.新疆库米什地区晚石炭世-早二叠世花岗岩年代学, 地球化学及其地质意义[J].地球科学:中国地质大学学报, 2013(2):218-232.
CHEN Chao, Lü Xinbiao, CAO Xiaofeng, et al.Geochronology, geochemistry and geological significance of late carboniferous-Early permian grabites in Kumishi area, Xinjiang[J].Eerth Science-Journal of China University of Geosciences, 2013(2):218-232.
成守德, 王广端, 杨树德, 等.新疆古板块构造[J].新疆地质, 1986, 4(2):1-26.
CHENG Shoude, WANG Guangrui, YANG Shude, et al.The traditional block structure, Xinjiang[J].Xinjiang Geology, 1986, 4(2):1-26.
第鹏飞, 李泰德, 王金荣, 等.新疆博格达造山带东段二叠纪流纹岩地球化学特征及地质意义[J].兰州大学学报:自然科学版, 2010, 46(3):8-13.
DI Pengfei, LI Taide, WANG Jinrong, et al.Geolgical signficance and geochemical characteristics of permian rhyolite from the eastern section of bogdaOrogenic belt, Xinjiang[J].Journal of Lanzhou University(Natural Sciences) , 2010, 46(3):8-13.
方国庆.博格达晚古生代岛弧的沉积岩石学证据[J].沉积学报, 1993, 11(3):31-36.
FANG Guoqin.Sedimentological evidence of the late paleozoic Bogda island arc [J].Journal of Sediment Research, 1993, 11(3):31-36.
高景刚, 李文渊, 周义, 等.新疆博格达东缘色皮口地区柳树沟组流纹岩地球化学, LA-MC-ICP-MS锆石U-Pb年代学及地质意义[J].地质与勘探, 2013, 49(4):665-675.
GAO Jingang, LI Wenyuan, ZHOU Yi, et al.Geochemistry, zircon U-Pb ages and geological significance of the Liushugou formation rhyolite in the Sepikou region, eastern Bogda, Xinjiang[J].Geology and Exploration, 2013, 49(4):665-675.
高景刚, 李文渊, 郭新成, 等.新疆博格达东缘色皮口一带辉绿岩地球化学, 锆石U-Pb年龄及地质意义[J].新疆地质, 2013, 31(2):117-123.
GAO Jingang, LI Wenyuan, GUO Xincheng, et al.Studies on the geochemistry, zircon U-Pb age and geological significance of diabase in the Sepikou region, eastern Bogda, Xinjiang[J].Xinjiang Geology, 2013, 31(2):117-123.
顾连兴, 胡受奚, 于春水, 等.东天山博格达造山带石炭纪火山岩及其形成地质环境[J].岩石学报, 2000, 16(3):305-316.
GU Lianxing, HU Shouxi, YU Chunshui, et al.Carboniferous volcanites in the Bogda orogenic belt of eastern Tianshan:their tectonic implications[J].Acta Petrologica Sinica, 2000, 16(3):305-316.
顾连兴, 于春水, 李宏宇, 等.博格达上大河沿铷-锶同位素年龄及其地质意义[J].矿物岩石地球化学通报, 2000, 19(1):19-22.
GU Lianxing, YU Chunshui, LI Hongyu, et al.Rb-Sr isotope age of the Shangdaheyan intrusion in the Bogda region and its geological implication[J].Bull.Miner.Petr.Geochem., 2000, 19(1):19-22.
顾连兴, 胡受奚, 于春水, 等.论博格达俯冲撕裂型裂谷的形成与演化[J].岩石学报, 2001, 17(4):585-597.
GU Lianxing, HU Shouxi, YU Chunshui, et al.Inltiation and evolution of the Bogda subduction-torn-type Rift[J].Acta Petrologica Sinica, 2001, 17(4):585-597.
何国琦, 李茂松, 刘德权, 等.中国新疆古生代地壳演化及成矿[M].乌鲁木齐:新疆人民出版社, 1994:1-437.
HE Guoqi, LI Maosong, LIU Dequan, et al.Evolution and mineralization of paleozoic crustal in the Xinjiang, China[M].Urimqi:Xinjiang People's Publishing House, 1994:1-437.
靳刘圆, 刘伟, 朱志新, 等.博格达三个山地区基性岩墙U-Pb年龄, 地球化学特征及地质意义[J].新疆地质, 2014, 32(3):316-321.
JIN Liuyuan, LIU Wei, ZHU Zhixin, et al.U-Pbage,geochemistry and tectonic implications of mafic dyke in Sangeshan,Bogda[J].Xinjiang Geology, 2014, 32(3):316-321.
李锦轶, 王克卓, 李亚萍, 等.天山山脉地貌特征地壳组成与地质演化[J].地质通报, 2006, 25(8): 895-909.
LI Jinyi, WANG Kezhuo, LI Yaping, et al.Geomorphological features, crustal composition and geological evolution of the Tianshan mountains[J].Geological Bulletin of China, 2006, 25(8):895-909.
李源, 杨经绥, 张健, 等.新疆东天山石炭纪火山岩及其构造意义[J].岩石学报, 2011, 27(1):193-209.
LI Yuan, YANG Jinsui, ZHANG Jian, et al.Tectonical significance of the carboniferous volcanic rocks in eastern Tianshan[J].Acta Petrologica Sinica, 2011, 27(1):193-209.
李平, 刘伟, 朱志新, 等.博格达西段三个山石英闪长岩体地球化学特征,年代学及地质意义[J].新疆地质, 2013, 31(3):162-166.
LI Ping, LIU Wei, ZHU Zhixin, et al.Geochemical characteristics, geochronology and its geological significance of quartz diorite in Sangeshan area, West of Bogda, Xinjiang[J].Xinjiang Geology, 2013, 31(3):162-166.
李昌年.火成岩微量元素化学[M].武汉:中国地质大学出版社, 1992:1-195.
LI Changnian. Trace Element Geochemistry of Igneous Rock [M].Wuhan:China University of Geosciences press, 1992:1-195.
李长民.锆石成因矿物学与锆石微区定年综述[J].地质调查与研究, 2009, 32(3):161-174.
LI Changmin.A Review on the Minerageny and Situ Microanalytical Dating Techniques of Zircons[J].Geological Survey and Research, 2009, 32(3):161-174.
李娟, 王德贵.巴里坤下涝坝一带辉长岩锆石SHRIMP U-Pb定年及地质意义[J].新疆地质, 2012, (S1): 17-19.
LI Juan, WANG Degui.The Geological Sense of SHRIMP U-Pb Dating of Zircons From Gabbros in Xialaoba,Balikun[J].Xinjiang Geology, 2012, (S1):17-19.
欧阳征健, 周鼎武, 林晋炎, 等.博格达山白杨河地区中基性岩墙地球化学特征及其地质意义[J].大地构造与成矿学, 2007, 30(4):495-503.
OUYANG Zhengjian, ZHOU Dingwu, LIN Jinyan, et al.Geochemistry and Geological Imlications of the Baiyanghe Basic-intermediate Dyke Swarm in the Bogda orogenic Belt in Xinjiang, China[J].Geotectonica et Metallogenia, 2007, 30(4):495-503.
宋彪, 张玉海, 万渝生, 等.锆石SHRIMP样品靶制作, 年龄测定及有关现象讨论[J].地质论评, 2002, 48(1):26-30.
SONG Biao, ZHANG Yuhai, WAN Yusheng, et al.Mount Making and Procedure of The SHRIMP Dating[J].Geological Review,2002, 48(1):26-30.
史仁灯.蛇绿岩研究进展存在问题及思考[J].地质论评, 2006, 51(6):681-693.
SHI Rendeng.Comment on the Progress in and Problems on Ophiolite Study[J].Geological Review, 2006, 51(6):681-693.
王银喜, 顾连兴, 张遵忠, 等.博格达裂谷双峰式火山岩地质年代学与Nd-Sr-Pb同位素地球化学特征[J].岩石学报, 2006, 22(5):1215-1224.
WANG Yinxi, GU Lianxing, ZHANG Zunzhong, et al.Geochronology and Nd-Sr-PbIsotops of the Bimodal Volcanic Rocks of the Bogda Rift[J].Acta Petrologica Sinica, 2006, 22(5):1215-1224.
王银喜, 顾连兴, 张遵忠, 等.博格达裂谷闭合和区域隆起的同位素年代学证据及地质意义[J].地球学报, 2005, 26(增刊):102-104.
WANG Yinxi, GU Lianxing, ZHANG Zunzhong, et al.Isotopic Chronologic Evidence of Bogda Rift Closure and Regional Uplift and Its Geological Significance[J].Acta Geoscientica Sinica, 2005, 26(sup.):102-104.
王金荣, 李泰德, 田黎萍, 等.新疆博格达造山带晚古生代构造-岩浆演化过程, 火山岩组合及地球化学证据[J].岩石学报, 2010, 26(4):1103-1115.
WANG Jinrong, LI Taide, TIAN Lipin, et al.Late Paleozoic Tectono-magmatic Evolution in Bogda orogenic Belt, Xinjiang:Evidence From Geochemistry of Volcanic Rocks[J].Acta Petrologica Sinica, 2010, 26(4):1103-1115.
吴元保, 郑永飞.锆石成因矿物学研究及其对U-Pb年龄解释的制约[J].科学通报, 2004, 49(16):1589-1604.
WU Yuanbao, ZHENG Yongfei.Genesis of Zircon and Its Constraints onInterpretation of U-Pb Age[J].Chinese Science Bulletin, 2004, 49(16):1589-1604.
吴庆福.准噶尔盆地构造演化及含油气远景[J].新疆地质, 1986, 4(3):1-19.
WU Qinfu.Structurl Evolution and Prospects of BasinJunggae microanalytical techniques to Understanding猠前剩ne彲恡li驮晧輠Pr筯c入噳屳癛坊卝缮癒来遶潩卥牷彳卩呮氠汅顣浯nomi散甠睇汥坯赬ogy, 1998, 7:1-35.
Wu F, Sun D, Jahn B, et al.A Jurassic garnet-bearing granitic pluton from NE China showing tetrad REE patterns[J].Journal of Asian Earth Sciences, 2004, 23(5):731-744.
Wood D A, Joron J L, Treuil M, et 煡卬挮El来繭繥nt赡歬 a筮d攠畓卲栠轩癳杯汴癯杰牥焠屶a屲睩坡瑴卩孯呮s in bas呩佣素牬彡vas 书噲坯赭 Iceland and the surrounding ocean floor[J].Contributions to Mineralogy and Petrology, 1979, 70(3):319-339.
Sun S S, McDonough W F.Chemical and isotopic systematics of oceanic basalts:implications for mantl聥帠幣o敭異卯遳卩兴適卯奮圠条遮d pr卯乣e坳赳入牳祛J].Geological Society, London, Special Publications, 1989, 42(1):313-345.ts Adjacent Areas[M].Beijing:Geological Publishing House, 1992.
杨梅珍, 吴宏恩, 杨高学.东准噶尔卡拉麦里SSZ型蛇绿岩地球化学及其构造意义[J].岩石矿物学杂志, 2009, 28(3):251-263.
YANG Minzhen, WU Hongen, YANG Gaoxue.Geochemical Characteristics and Tectonic Significance of Kalamaili SSZ Ophiolite From Eastern Junggar[J].Acta Petrologica et Mineralogica, 2009, 28(3):251-263.
赵振华, 熊小林, 韩小东.花岗岩稀土元素四分组效应形成机理探讨——以千里山和巴尔哲花岗岩为例[J].中国科学:D辑, 1999, 29(4):331-338.
ZHAO Zhenhua, XIONG Xiaolin, HAN Xiaodong.The Formation Mechanism ofTetrad Effect of the Rare Elements of Granite-Taking Qianlishan and Barze Granites as an Example [J].Science in China(Series D), 1999, 29(4):331-338.
赵振华.稀有金属花岗岩的稀土元素四分组效应[J].地球化学, 1992(3):221-233.
ZHAO Zhenhua.Tetrad Effects of Rare-earth Elements in Rare-metalGranitea[J].Geochimica, 1992(3):221-233.
张辉, 刘丛强.新疆阿尔泰可可托海3号伟晶岩脉磷灰石矿物中稀土元素四分组效应及其意义[J].地球化学, 2001, 30(4):323-334.
ZANG Hui, LIU Congqiang.Tetrad effect of REE in apatites from pegmatite No. 3, Altay, Xinjiang and its implications[J].Geochimica, 2001, 30(4):323-334.
钟玉芳, 马昌前, 佘振兵.锆石地球化学特征及地质应用研究综述[J].地质科技情报, 2006, 25(1):27-34.
ZHONG Yufang, MA Changqian, YU Zhenbing.Geochemical Characteristics of Zircon and Its Applications in Geosciences[J].Geological Science and Technology Information, 2006, 25(1):27-34.
夏林圻,李向民,夏祖春,等.天山石炭—二叠纪大火成岩省裂谷火山作用与地幔柱[J].西北地质,2006,39(1):1-49.
XIA Linxi,LI Xiangmin,XIA Zuchun,et al.Carboniferous-Permian Rift-Related Volcanism and Mantle Plume in the Tianshan, Northwestern China[J].Northwestern Geology,2006,39(1):1-49.
夏林圻,夏祖春,徐学义,等.天山及邻区石炭纪—早二叠世裂谷火山岩岩石成因[J].西北地质,2009,41(4):1-68.
XIA Linxi,XIA Zuchun, XU Xueyi,et al.Petrogenesis of Caboniferous-Early Permian Rift-Related Volcanic Rocks in the Tianshan and its Neighboring Areas,Northwestern China[J].Northwestern Geology, 2009,41(4):1-68.
Bau M.Controls on the fractionation of isovalent trace elements in magmatic and aqueous systems:evidence from Y/Ho, Zr/Hf, and lanthanide tetrad effect[J].Contributions to Mineralogy and Petrology, 1996, 123(3): 323-333.
Compston W, Williams I S, Meyer C.U-Pb geochronology of zircons from lunar breccia 73217 using a sensitive high mass-resolution ion microprobe[J].Journal of Geophysical Research: Solid Earth (1978–2012), 1984, 89(S02):B525-B534.
Coleman.Continental growth of north China[J].Tectionics, 1989, 8(1):621-625.
Han B, He G, Wang S.Postcollisional mantle-derived magmatism, underplating and implications for basement of the Junggar Basin[J].Science in China Series D:Earth Sciences, 1999, 42(2):113-119.
Holm P E.The geochemical fingerprints of different tectonomagmatic environments using hygromagmatophile element abundances of tholeiitic basalts and basaltic andesites[J].Chemical Geology, 1985, 51(3):303-323.
Irber W.The lanthanide tetrad effect and its correlation with K/Rb, Eu/Eu*, Sr/Eu, Y/Ho, and Zr/Hf of evolving peraluminous granite suites[J].Geochimica et Cosmochimica Acta, 1999, 63(3):489-508.
Jakes P, White A J R.Major and trace element abundances in vol-canic rocks of orogenic areas[J].Bull GeolSoc Am, 1972, 83:29-40.
Ludwig K R.Using isoplot/EX, version2, a Geolocronolgical toolkit for Microsoft excel[J].Berkeley Geochronological Center Special Publication, 1999, 47:151-181.
Williams I S.U–Th–Pb geochronology by ion microprobe[J].Reviews in Economic Geology, 1998, 7(1):1-35.
McKibben M A, Shanks W C, Ridley W I,eds.Applications of
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