Zircon U-Pb geochronology and typological classification of eclogites in the hinterland of the central Dabie
文献类型：期刊论文
| 作者 | Xu XuFeng1; Shi YongHong2; Lin Wei3; Ji WenBin3 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2013-05-01 |
| 卷号 | 29期号:5页码:1559-1572 |
| 关键词 | The hinterland of the central Dabie Zircon U-Pb geochronology Lower-temperature and high-pressure eclogite The peak metamorphic P-T conditions |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | According to the petrological analysis for eclogites of JS249 and JS250, the eclogites in Huanggang-Niutuling area have a clear characteristic of high-pressure metamorphism, garnets with zoning of compositions contain inclusions of earlier stage, the main mineral assemblage of peak metamorphic is Grt + Omp + Phn + Rt + Qtz + Ep + Ky, meanwhile the main mineral assemblage of amphibolite-facies metamorphic is Di + Mg-Hbl + Ab + Prg + Bt. The result of P-T conditions from eclogites of JS249 and JS250 shows that, T = 594 +/- 61 degrees C and P =2. 58 +/- 0. 27GPa are for JS249, T = 616 +/- 56 degrees C and P = 2. 14 +/- 0. 14GPa are for JS250. LA-ICPMS zircon U-Pb geochronology and laser Raman spectroscopy of inclusions are determined for these two samples, the results show that, the inclusions of JS249 are amphibole, feldspar and other retrograde minerals with U-Pb age of 217. 3 +/- 3. 5Ma, which is timing the age of amphibolite-facies metamorphism. The inclusions of JS250 are garnet, rutile, omphacite and other peak-metamorphism minerals; the weighted average age is 235. 2 +/- 4. 2Ma, which is the age of peak metamorphism. Combined of petrology, thermodynamic and zircon U-Pb geochronology, Huanggang-Niutuling unit should be belong to lower-temperature and high-pressure unit, similar to the south Dabie Terrane. |
| WOS关键词 | ULTRAHIGH-PRESSURE ECLOGITE ; COESITE-BEARING ECLOGITES ; EAST-CENTRAL CHINA ; MINERAL CHEMISTRY ; UHP TERRANE ; RETROGRADE METAMORPHISM ; YANGTZE CRATONS ; LOW-TEMPERATURE ; FLUID-FLOW ; T PATH |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000321226200008 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/87234]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Xu XuFeng |
| 作者单位 | 1.Geol Survey Jiangsu Prov, Nanjing 210000, Jiangsu, Peoples R China 2.Hefei Univ Technol, Sch Resources & Environm Engn, Hefei 230009, 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 | Xu XuFeng,Shi YongHong,Lin Wei,et al. Zircon U-Pb geochronology and typological classification of eclogites in the hinterland of the central Dabie[J]. ACTA PETROLOGICA SINICA,2013,29(5):1559-1572. |
| APA | Xu XuFeng,Shi YongHong,Lin Wei,&Ji WenBin.(2013).Zircon U-Pb geochronology and typological classification of eclogites in the hinterland of the central Dabie.ACTA PETROLOGICA SINICA,29(5),1559-1572. |
| MLA | Xu XuFeng,et al."Zircon U-Pb geochronology and typological classification of eclogites in the hinterland of the central Dabie".ACTA PETROLOGICA SINICA 29.5(2013):1559-1572. |
入库方式： OAI收割
来源：地质与地球物理研究所
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