中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
Geochemistry and zircon U-Pb chronology of charnockites in the Yinshan Block, North China Craton: tectonic evolution involving Neoarchaean ridge subduction

文献类型：期刊论文

作者Ma, Xudong1; Fan, Hong-Rui1; Santosh, M.2; Guo, Jinghui3
刊名INTERNATIONAL GEOLOGY REVIEW
出版日期2013-10-10
卷号55期号:13页码:1688-1704
关键词end of Archaean charnockites Hf isotopes zircon U-Pb geochronology Yinshan Block North China Craton
ISSN号0020-6814
DOI10.1080/00206814.2013.796076
文献子类Article
英文摘要The Yinshan Block, part of the Neoarchaean basement of the Western Block of the North China Craton, is composed of granite-greenstone and granulite-charnockite complexes. We report research on a suite of charnockites from the granulite-charnockite complex and characterize their geochemistry, zircon U-Pb geochronology, and Hf isotopic composition. The charnockites can be divided into intermediate (SiO2=59-63wt.%) and silicic (SiO2=69-71wt.%) groups. U-Pb zircon data yield protolith formation ages of 2524 +/- 4 Ma, 2533 +/- 15 Ma, followed by metamorphism at 2498 +/- 3 Ma, 2490 +/- 11 Ma, respectively, for these groups. Although the intermediate charnockites are characterized by higher Al2O3, TiO2, Fe2O3T, MnO, MgO, CaO, P2O5, K2O, Sr, and sigma REE content than the silicic charnockites, the ages and Hf isotopic composition of zircons and REE patterns of both intermediate and silicic charnockites are remarkably consistent, which indicates that they are genetically related. These charnockites are predominantly metaluminous to slightly peraluminous, calc-alkalic to calcic, and magnesian - characteristics generally related to a subduction setting. High-Sr+Ba granites with low K2O/Na2O characteristics, shown by these charnockites, imply a mixture of mafic and felsic magmas generated from an enriched mantle+lower crust. High MgO, Ni, Cr and Mg#, low K2O/Na2O, and metaluminous to slightly peraluminous natures imply that the source rocks most likely were amphibolites. Coeval calc-alkaline magmatism and high-T granulite-facies metamorphism under low-H2O activity in the area lead us to propose a model involving mid-ocean ridge subduction within a Neoarchaean convergent margin. The arc-related rocks accreted along the continent margin, and became a barrier when the lithospheric mantle ascended through the slab window. Melt derived from the decompressing mantle mixed with melt derived from the overlying, juvenile lower crust melt, which was warmed and metamorphosed by the ascending lithospheric mantle.
WOS关键词HIGH-PRESSURE GRANULITES ; ND ISOTOPIC COMPOSITIONS ; LA-ICP-MS ; WESTERN BLOCK ; KHONDALITE BELT ; INNER-MONGOLIA ; TRACE-ELEMENTS ; SLAB WINDOW ; KEY ISSUES ; GEOLOGICAL SIGNIFICANCE
WOS研究方向Geology
语种英语
WOS记录号WOS:000323919800007
出版者TAYLOR & FRANCIS INC
资助机构Major State Basic Research Development Programme(2012CB416605) ; Major State Basic Research Development Programme(2012CB416605) ; Major State Basic Research Development Programme(2012CB416605) ; Major State Basic Research Development Programme(2012CB416605) ; Natural Science Foundation of China(41202138 ; Natural Science Foundation of China(41202138 ; Natural Science Foundation of China(41202138 ; Natural Science Foundation of China(41202138 ; China Postdoctoral Science Foundation(2012M510539) ; China Postdoctoral Science Foundation(2012M510539) ; China Postdoctoral Science Foundation(2012M510539) ; China Postdoctoral Science Foundation(2012M510539) ; 41023009 ; 41023009 ; 41023009 ; 41023009 ; 40730315) ; 40730315) ; 40730315) ; 40730315) ; Major State Basic Research Development Programme(2012CB416605) ; Major State Basic Research Development Programme(2012CB416605) ; Major State Basic Research Development Programme(2012CB416605) ; Major State Basic Research Development Programme(2012CB416605) ; Natural Science Foundation of China(41202138 ; Natural Science Foundation of China(41202138 ; Natural Science Foundation of China(41202138 ; Natural Science Foundation of China(41202138 ; China Postdoctoral Science Foundation(2012M510539) ; China Postdoctoral Science Foundation(2012M510539) ; China Postdoctoral Science Foundation(2012M510539) ; China Postdoctoral Science Foundation(2012M510539) ; 41023009 ; 41023009 ; 41023009 ; 41023009 ; 40730315) ; 40730315) ; 40730315) ; 40730315) ; Major State Basic Research Development Programme(2012CB416605) ; Major State Basic Research Development Programme(2012CB416605) ; Major State Basic Research Development Programme(2012CB416605) ; Major State Basic Research Development Programme(2012CB416605) ; Natural Science Foundation of China(41202138 ; Natural Science Foundation of China(41202138 ; Natural Science Foundation of China(41202138 ; Natural Science Foundation of China(41202138 ; China Postdoctoral Science Foundation(2012M510539) ; China Postdoctoral Science Foundation(2012M510539) ; China Postdoctoral Science Foundation(2012M510539) ; China Postdoctoral Science Foundation(2012M510539) ; 41023009 ; 41023009 ; 41023009 ; 41023009 ; 40730315) ; 40730315) ; 40730315) ; 40730315) ; Major State Basic Research Development Programme(2012CB416605) ; Major State Basic Research Development Programme(2012CB416605) ; Major State Basic Research Development Programme(2012CB416605) ; Major State Basic Research Development Programme(2012CB416605) ; Natural Science Foundation of China(41202138 ; Natural Science Foundation of China(41202138 ; Natural Science Foundation of China(41202138 ; Natural Science Foundation of China(41202138 ; China Postdoctoral Science Foundation(2012M510539) ; China Postdoctoral Science Foundation(2012M510539) ; China Postdoctoral Science Foundation(2012M510539) ; China Postdoctoral Science Foundation(2012M510539) ; 41023009 ; 41023009 ; 41023009 ; 41023009 ; 40730315) ; 40730315) ; 40730315) ; 40730315)
源URL[http://ir.iggcas.ac.cn/handle/132A11/87580]  
专题中国科学院地质与地球物理研究所
通讯作者Fan, Hong-Rui
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
2.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100080, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Ma, Xudong,Fan, Hong-Rui,Santosh, M.,et al. Geochemistry and zircon U-Pb chronology of charnockites in the Yinshan Block, North China Craton: tectonic evolution involving Neoarchaean ridge subduction[J]. INTERNATIONAL GEOLOGY REVIEW,2013,55(13):1688-1704.
APA Ma, Xudong,Fan, Hong-Rui,Santosh, M.,&Guo, Jinghui.(2013).Geochemistry and zircon U-Pb chronology of charnockites in the Yinshan Block, North China Craton: tectonic evolution involving Neoarchaean ridge subduction.INTERNATIONAL GEOLOGY REVIEW,55(13),1688-1704.
MLA Ma, Xudong,et al."Geochemistry and zircon U-Pb chronology of charnockites in the Yinshan Block, North China Craton: tectonic evolution involving Neoarchaean ridge subduction".INTERNATIONAL GEOLOGY REVIEW 55.13(2013):1688-1704.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。