Trace element redistributed patterns in rock-forming minerals of mafic granulite as indicators for metamorphic history: A case study of high-pressure granulite from the Jiaobei terrane, North China Craton
文献类型：期刊论文
| 作者 | Wang HaoZheng1,2; Zhang HuaFeng3; Zhai MingGuo1 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2015-06-01 |
| 卷号 | 31期号:6页码:1694-1710 |
| 关键词 | Mafic granulite Metamorphism Major element thermobarometry and trace element thermometer Jiaobei terrane North China craton |
| 文献子类 | Article |
| 英文摘要 | Metamorphism history of high-grade metamorphic rocks is an important clue to shed light on crust tectono-thermal events. However, intra-crystalline diffusion and recrystallization induced element re-distribution between rock-forming minerals, which have important influence on inversion of peak metamorphic history. On the contrary, intra-crystalline diffusion rates of trace elements are relatively slower than those of the major elements. Therefore, trace elements distribution and partition patterns in rock-forming minerals might be useful tools to shed light on metamorphic history of mafic high-pressure granulites. Major and trace elements of major rock-forming minerals in mafic high-pressure granulite are analyzed by in-situ LA-ICP-MS measurement to learn about trace element redistribution patterns between minerals and their indication of metamorphism. Our results show major elements (Mg, Fe, Ca) in peak stage minerals including garnet, clinopyroxene and plagioclase are homogenized by diffusion and recrystallization distribution, so P-T condition in peak stage can't get good inversion through minerals thermobarometry, but rare earth elements and trace elements distributed in garnet and clinopyroxene as bell shape to infer peak history recorded by trace elements and REE. Compiling major element thermobarometry and trace element thermometer results, we estimate P-T conditions of the peak and retrograde metamorphism of >828 degrees C and 1. 27GPa, 810 similar to 840 degrees C and 0. 6 1. 0GPa, respectively. Deduced amphibolite facies metamorphism took place after retrograde medium pressure granulite metamorphism. Integreting with previous data, we suggest that our mafic granulite experienced an ITD metamorphic history. |
| WOS关键词 | PB ZIRCON GEOCHRONOLOGY ; LIAO-JI BELT ; LA-ICP-MS ; RARE-EARTH-ELEMENTS ; HIGH-FIELD-STRENGTH ; U-PB ; EASTERN BLOCK ; GARNET GROWTH ; SHANDONG PENINSULA ; SILICATE MELT |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000357547700014 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/62334]  |
| 专题 | 地质与地球物理研究所_中国科学院矿产资源研究重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang HaoZheng,Zhang HuaFeng,Zhai MingGuo. Trace element redistributed patterns in rock-forming minerals of mafic granulite as indicators for metamorphic history: A case study of high-pressure granulite from the Jiaobei terrane, North China Craton[J]. ACTA PETROLOGICA SINICA,2015,31(6):1694-1710. |
| APA | Wang HaoZheng,Zhang HuaFeng,&Zhai MingGuo.(2015).Trace element redistributed patterns in rock-forming minerals of mafic granulite as indicators for metamorphic history: A case study of high-pressure granulite from the Jiaobei terrane, North China Craton.ACTA PETROLOGICA SINICA,31(6),1694-1710. |
| MLA | Wang HaoZheng,et al."Trace element redistributed patterns in rock-forming minerals of mafic granulite as indicators for metamorphic history: A case study of high-pressure granulite from the Jiaobei terrane, North China Craton".ACTA PETROLOGICA SINICA 31.6(2015):1694-1710. |
入库方式： OAI收割
来源：地质与地球物理研究所
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