Polymetamorphism of the Chupa Sequence of the Belomorian Mobile Belt (Fennoscandia): Evidence from the Isotope-Geochemical (U-Pb, REE, O) Study of Zircon
文献类型：期刊论文
| 作者 | Skublov, S. G.1,2; Azimov, P. Ya.1; Li, X. -H.3; Glebovitskii, V. A.1,4; Melnik, A. E.1,2 |
| 刊名 | GEOCHEMISTRY INTERNATIONAL
 |
| 出版日期 | 2017 |
| 卷号 | 55期号:1页码:47-59 |
| 关键词 | Belomorian Mobile Belt Chupa Sequence Zircon U-pb Method Oxygen Isotope Composition Ree Composition Local Methods |
| ISSN号 | 0016-7029 |
| DOI | 10.1134/S0016702917010098 |
| 文献子类 | Article |
| 英文摘要 | U-Pb age and isotope-geochemical features were determined for zircon from kyanite gneisses and amphibolites of the Chupa Sequence of the Belomorian mobile belt (BMB) of the Fennoscandian shield. The cores of the zircon from the gneisses marks the Neoarchean events within 2700-2800 Ma known in the BMB, while those of the amphibolites correspond to the age of magmatic crystallization (2775 +/- 12 Ma). The inner rims of zircon from the amphibolites and gneisses likely record two different Neoarchean metamorphic events (2650 +/- 8 and 2599 +/- 10 Ma, respectively). The outer rims record Paleoproterozoic metamorphism with an age of 1890 Ma, which formed the modern appearance and mineral assemblages of the rock association. The value of delta O-18 in the zircon from the gneiss is 8.6% in cores, slightly decreases to 8.0% in inner rims, and sharply decreases to 3.9% in outer rims. The value of delta O-18 in the zircon from the amphibolite is around 6.2% in cores, increases up to 8.6 in inner rims, and decreases to 5.2% in outer rims. A significant decrease of delta O-18 is likely related to the anomalous composition of Svecofennian metamorphic fluid restricted to local shear zones. The geochemical features of the zircons in combination with their morphology and anatomy make it possible to distinguish zircon generations of different age and change in metamorphic environments. |
| WOS关键词 | CORUNDUM-BEARING ROCKS ; NORTHERN KARELIA ; BALTIC SHIELD ; EARTH ; GEOCHRONOLOGY ; METAMORPHISM ; ORIGIN ; OXYGEN ; AGE ; PETROLOGY |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000394355900006 |
| 出版者 | MAIK NAUKA/INTERPERIODICA/SPRINGER |
| 资助机构 | Russian Foundation for Basic Research(16-35-60092 ; Presidium of the Russian Academy of Sciences(I.5P ; Ministry of Education and Science of the Russian Federation(5.2115.2014/K) ; 16-05-00125 ; IV.8.8) ; 14-05-31294 ; 14-05-00376 ; 13-05-91162-GFEN) ; Russian Foundation for Basic Research(16-35-60092 ; Presidium of the Russian Academy of Sciences(I.5P ; Ministry of Education and Science of the Russian Federation(5.2115.2014/K) ; 16-05-00125 ; IV.8.8) ; 14-05-31294 ; 14-05-00376 ; 13-05-91162-GFEN) ; Russian Foundation for Basic Research(16-35-60092 ; Presidium of the Russian Academy of Sciences(I.5P ; Ministry of Education and Science of the Russian Federation(5.2115.2014/K) ; 16-05-00125 ; IV.8.8) ; 14-05-31294 ; 14-05-00376 ; 13-05-91162-GFEN) ; Russian Foundation for Basic Research(16-35-60092 ; Presidium of the Russian Academy of Sciences(I.5P ; Ministry of Education and Science of the Russian Federation(5.2115.2014/K) ; 16-05-00125 ; IV.8.8) ; 14-05-31294 ; 14-05-00376 ; 13-05-91162-GFEN) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/53071]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Skublov, S. G.; Azimov, P. Ya. |
| 作者单位 | 1.Russian Acad Sci, Inst Precambrian Geol & Geochronol, Nab Makarova 2, St Petersburg 199034, Russia 2.St Petersburg Min Univ, Dvadtsat Pervaya Liniya 2, St Petersburg 199106, Russia 3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beitucheng West Roud 19, Beijing 100029, Peoples R China 4.St Petersburg State Univ, Inst Earth Sci, Univ Skaya Nab 7-9, St Petersburg 199034, Russia |
| 推荐引用方式 GB/T 7714 | Skublov, S. G.,Azimov, P. Ya.,Li, X. -H.,et al. Polymetamorphism of the Chupa Sequence of the Belomorian Mobile Belt (Fennoscandia): Evidence from the Isotope-Geochemical (U-Pb, REE, O) Study of Zircon[J]. GEOCHEMISTRY INTERNATIONAL,2017,55(1):47-59. |
| APA | Skublov, S. G.,Azimov, P. Ya.,Li, X. -H.,Glebovitskii, V. A.,&Melnik, A. E..(2017).Polymetamorphism of the Chupa Sequence of the Belomorian Mobile Belt (Fennoscandia): Evidence from the Isotope-Geochemical (U-Pb, REE, O) Study of Zircon.GEOCHEMISTRY INTERNATIONAL,55(1),47-59. |
| MLA | Skublov, S. G.,et al."Polymetamorphism of the Chupa Sequence of the Belomorian Mobile Belt (Fennoscandia): Evidence from the Isotope-Geochemical (U-Pb, REE, O) Study of Zircon".GEOCHEMISTRY INTERNATIONAL 55.1(2017):47-59. |
入库方式： OAI收割
来源：地质与地球物理研究所
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