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
  4. 岩石圈演化国家重点实验室
Geochemistry and Petrogenesis of Shoshonitic Dyke Swarm in the Northeast of Meshkinshahr, NW Iran

文献类型：期刊论文

作者Fadaeian, Mohammad1; Jahangiri, Ahmad2; Ao, Songjian3; Kamali, Amin Allah4; Xiao, Wenjiao3
刊名MINERALS
出版日期2022-03-01
卷号12期号:3页码:27
关键词dyke swarms geochemistry shoshonite Sr-Nd isotope U-Pb zircon dating post collisional magmatism Iran
DOI10.3390/min12030309
英文摘要The study area is located in Ardabil province in the northeast of Meshkinshahr city. More than 200 small and large Eocene-age dykes form outcrops in this area. Laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) U-Pb zircon analyses yield a consistent age of 44.3 +/- 1.8 Ma for the dyke swarms. These dykes include tephritic, andesitic and basaltic compositions, and show enrichment in LREEs (relative to HREEs) and are characterized by enrichment in LILEs and depletion in HFSEs. Petrological observations, along with major, rare earth and trace elements geochemistry, suggest that the dykes have a shoshonitic signature. All the rocks are highly enriched in incompatible trace elements and have variable Sr-Nd isotopes. Enrichment in incompatible elements and other geochemical features for the dyke swarm rocks suggest that a metasomatized subcontinental lithospheric mantle is the magma source. The negative Nb-Ta-Ti anomalies in the rocks are comparable with the features of subduction-related magmatism and contamination with ancient crustal components. The radiogenic Sr-87/Sr-86 isotopic values of the rocks imply the involvement of slab terrigenous sediments and/or a continental lithosphere. Isotopically, the volcanic rocks exhibit a binary trend, representing 1-5% mixing between the primary mantle and sediment melts. Our melting models suggest that there are residual garnet + spinel in the source, which are incompatible with the partial melting of amphibole- and/or phlogopite-bearing lherzolites. The geochronological, geochemical and isotopic data for the northeast Meshkinshahr dyke swarms suggest that these Late Eocene magmas were derived from a small degree of partial melting of a subduction-metasomatized lithospheric mantle source in a post-collisional setting.
WOS关键词ALKALINE VOLCANIC-ROCKS ; EAST PACIFIC RISE ; TRACE-ELEMENT ; WESTERN ANATOLIA ; CALC-ALKALINE ; GEODYNAMIC EVOLUTION ; GEOLOGICAL SAMPLES ; TECTONIC EVOLUTION ; POTASSIC VOLCANISM ; BENEATH HAWAII
资助项目National Natural Science Foundation of China[41822204] ; National Natural Science Foundation of China[41888101]
WOS研究方向Geochemistry & Geophysics ; Mineralogy ; Mining & Mineral Processing
语种英语
WOS记录号WOS:000774141700001
出版者MDPI
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/105042]  
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Ao, Songjian
作者单位1.Payame Noor Univ, Dept Geol, Tehran 19395, Iran
2.Univ Tabriz, Dept Geol, Tabriz 51664, Iran
3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
4.Res Ctr Conservat Culture Rel RCCCR, Res Inst Cultural Heritage & Tourism, Tehran 11456, Iran
推荐引用方式
GB/T 7714		 Fadaeian, Mohammad,Jahangiri, Ahmad,Ao, Songjian,et al. Geochemistry and Petrogenesis of Shoshonitic Dyke Swarm in the Northeast of Meshkinshahr, NW Iran[J]. MINERALS,2022,12(3):27.
APA Fadaeian, Mohammad,Jahangiri, Ahmad,Ao, Songjian,Kamali, Amin Allah,&Xiao, Wenjiao.(2022).Geochemistry and Petrogenesis of Shoshonitic Dyke Swarm in the Northeast of Meshkinshahr, NW Iran.MINERALS,12(3),27.
MLA Fadaeian, Mohammad,et al."Geochemistry and Petrogenesis of Shoshonitic Dyke Swarm in the Northeast of Meshkinshahr, NW Iran".MINERALS 12.3(2022):27.

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。