LA-MC-ICP MS zircon U-Pb geochronology and petrological geochemistry of scientific deep drilling in Zhuanqiao, Lujiang-Zongyang volcanic basin

被引：0
|
作者：
Jia LiQiong [1 ,2 ,3 ]
Xu WenYi [3 ]
Lu QingTian [3 ]
Mo XuanXue [1 ,2 ]
Xiong Xin [3 ]
Li Jun [1 ,3 ]
Wang Liang [1 ,4 ]
机构：
[1] China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China
[2] China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China
[3] Chinese Acad Geol Sci, MLR, Inst Mineral Resources, Key Lab Metallogeny & Mineral Assessment, Beijing 100037, Peoples R China
[4] Chinese Armed Police Force, Gold Geol Inst, Langfang 065000, Peoples R China
来源：
ACTA PETROLOGICA SINICA | 2014年 / 30卷 / 04期
关键词：
SinoProbe; Science deep drilling; Shoshonite series; Zhuanqiao; Lujiang-Zongyang volcanic basin; LUZONG BASIN; YANGTZE-RIVER; BAJIATAN INTRUSION; EASTERN CHINA; LOWER REACHES; ROCKS; ANHUI; BELT; CONSTRAINTS; PROVINCE;
D O I：
暂无
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
LA-MC-ICP MS zircon U-Pb datings yield the ages of 131.29 +/- 0.85Ma, 130.95 +/- 0. 56Ma, 130. 88 +/- 0. 41Ma for trachyandesite, syenite and biotite monzonite from scientific deep drilling ZK01 in Zhuanqiao, Lujiang-Zongyang volcanic basin. Major and trace elements suggest, belonging to metaluminous-peraluminous series, these igneous rocks in ZK01 are characterized by high content of potassium (K2O averaged at 3. 7%), rich alkali (K2O + Na2O averaged at 8.4%) and LREEs but depleted strong incompatible elements. Most samples plot in the field of shoshonite in SiO2-K2O diagram, indicating the volcanic and intrusive rocks are shoshonite series. Mineral fractional crystallization occured during the evolution of magma. epsilon(Hf)(t) values of trachyandesite, syenite and biotite monzonite are -12.9 similar to -7.6, -10.1 similar to -6.5 and -11.1 similar to -3.4, respectively. It has been inferred that igneous rocks in ZK01 derived from enriched mantle produced by fluid metasomatism of subduction slab, less contaminated by continental material, and magma formed in the tectonic setting of lithosphere tension.
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页码：995 / 1016
页数：22
相关论文
共 78 条
  • [31] [刘洪 Liu Hong], 2002, [地球化学, Geochimica], V31, P129
  • [32] Liu J, 2007, ACTA PETROL SIN, V23, P2615
  • [33] Reappraisement and refinement of zircon U-Pb isotope and trace element analyses by LA-ICP-MS
    Liu YongSheng
    Hu ZhaoChu
    Zong KeQing
    Gao ChangGui
    Gao Shan
    Xu Juan
    Chen HaiHong
    [J]. CHINESE SCIENCE BULLETIN, 2010, 55 (15): : 1535 - 1546
  • [34] Lu QT, 2010, ACTA PETROL SIN, V26, P2598
  • [35] Middlemost E.A.K., 1985, Magma and Magmatic Rocks, P1
  • [36] Hafnium isotope characterization of the GJ-1 zircon reference material by solution and laser-ablation MC-ICPMS
    Morel, M. L. A.
    Nebel, O.
    Nebel-Jacobsen, Y. J.
    Miller, J. S.
    Vroon, P. Z.
    [J]. CHEMICAL GEOLOGY, 2008, 255 (1-2) : 231 - 235
  • [37] CHARACTERISTICS AND TECTONIC SETTING OF THE SHOSHONITE ROCK ASSOCIATION
    MORRISON, GW
    [J]. LITHOS, 1980, 13 (01) : 97 - 108
  • [38] Muller D., 1995, POTASSIC IGNEOUS ROC, P1
  • [39] Nb/Ta fractionation in a Cambrian arc back arc system, New Zealand: source constraints and application of refined ICPMS techniques
    Munker, C
    [J]. CHEMICAL GEOLOGY, 1998, 144 (1-2) : 23 - 45
  • [40] Geochemistry of amphibolites and quartzofeldspathic gneisses in the Pan-African Zambezi belt, northwest Zimbabwe: Evidence for bimodal magmatism in a continental rift setting
    Munyanyiwa, H
    Hanson, RE
    Blenkinsop, TG
    Treloar, PJ
    [J]. PRECAMBRIAN RESEARCH, 1997, 81 (3-4) : 179 - 196
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