Correlating metamorphic mineral assemblages with metamorphic ages in rocks recording multiple tectonothermal events: A case study of the Jiaobei terrane, eastern North China Craton
文献类型：期刊论文
| 作者 | Zhang, Rucheng1,2; Zhai, Mingguo2; Zhao, Lei2 |
| 刊名 | PRECAMBRIAN RESEARCH
 |
| 出版日期 | 2022-08-01 |
| 卷号 | 377页码:15 |
| 关键词 | Jiaobei terrane Zircon U-Pb dating Trace element Metamorphism O isotope |
| ISSN号 | 0301-9268 |
| DOI | 10.1016/j.precamres.2022.106731 |
| 英文摘要 | Interpretations of high-grade terranes recording more than one episode of metamorphism can often be problematic due to the difficulties in assigning the metamorphic conditions to the time of metamorphism. The Jiaobei terrane as a typical Precambrian metamorphic terrane in the North China Craton (NCC) records multiple high-grade metamorphic events. Resolving the timing and features of each metamorphic event can cast light on the above issue and also play a key role in understanding the geological evolution of the Jiaobei terrane and the NCC. This study reports paired U-Pb dating with in-situ trace elements and oxygen isotope compositions of metamorphic zircons in meta-mafic rocks from the Qixia area of Jiaobei terrane. The zircons develop core-rim structures with both of them exhibiting metamorphic features. Zircon rims, although widely developed, are mostly too thin for in-situ age dating. LA-ICPMS as well as SIMS zircon U-Pb analysis of zircon cores yielded metamorphic ages of similar to 2500 Ma, whereas the rims yielded Pb-207/Pb-206 ages of 1915-1717 Ma. The rare earth elements (REE) patterns and delta O-18 values measured in the Paleoproterozoic metamorphic zircon rims are distinct from those measured in the Archean cores. Distinct features of the cores and rims imply that the garnet-bearing (high-pressure) mineral assemblages were formed during late Paleoproterozoic metamorphic event and absent during the Neoarchean event. These new geochronological data further confirm that the Jiaobei terrane records both the late Neoarchean metamorphism and the late Paleoproterozoic tectonic thermal event. Also, our study argues for the existence of global subduction network geological records in the NCC during Paleoproterozoic , rather than during Neoarchean. The influence of the overprinted late Paleoproterozoic metamorphism should be fully considered when estimating P-T conditions of the earlier tectonothermal event (Neoarchean metamorphism). |
| WOS关键词 | P-T PATH ; PRESSURE PELITIC GRANULITES ; LIAO-JI BELT ; U-PB ; MAFIC GRANULITES ; LU-HF ; TRACE-ELEMENT ; ZIRCON AGES ; GEOLOGICAL SIGNIFICANCE ; TECTONIC IMPLICATIONS |
| 资助项目 | National Nature Science Foundation of China[41890834] ; National Nature Science Foundation of China[41872197] ; CAS priority strategic program[XDB18030205] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000832990700001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; CAS priority strategic program ; CAS priority strategic program ; CAS priority strategic program ; CAS priority strategic program ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; CAS priority strategic program ; CAS priority strategic program ; CAS priority strategic program ; CAS priority strategic program ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; CAS priority strategic program ; CAS priority strategic program ; CAS priority strategic program ; CAS priority strategic program ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; CAS priority strategic program ; CAS priority strategic program ; CAS priority strategic program ; CAS priority strategic program |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/108457]  |
| 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 | Zhao, Lei |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 2.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 | Zhang, Rucheng,Zhai, Mingguo,Zhao, Lei. Correlating metamorphic mineral assemblages with metamorphic ages in rocks recording multiple tectonothermal events: A case study of the Jiaobei terrane, eastern North China Craton[J]. PRECAMBRIAN RESEARCH,2022,377:15. |
| APA | Zhang, Rucheng,Zhai, Mingguo,&Zhao, Lei.(2022).Correlating metamorphic mineral assemblages with metamorphic ages in rocks recording multiple tectonothermal events: A case study of the Jiaobei terrane, eastern North China Craton.PRECAMBRIAN RESEARCH,377,15. |
| MLA | Zhang, Rucheng,et al."Correlating metamorphic mineral assemblages with metamorphic ages in rocks recording multiple tectonothermal events: A case study of the Jiaobei terrane, eastern North China Craton".PRECAMBRIAN RESEARCH 377(2022):15. |
入库方式： OAI收割
来源：地质与地球物理研究所
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