Zircon U-Pb age, whole-rock geochemistry and Nd-Sr-Pb isotope constraints on petrogenesis of the Eocene Zajkan gabbro-monzogranite intrusion, Tarom-Hashtjin magmatic belt, NW Iran
文献类型：期刊论文
| 作者 | Mokhtari, M. A. A.1; Kouhestani, H.1; Qin, K. Z.2,3 |
| 刊名 | AUSTRALIAN JOURNAL OF EARTH SCIENCES
 |
| 出版日期 | 2022-05-16 |
| 页码 | 18 |
| 关键词 | gabbro to granitoid series U-P zircon dating geochemistry Sr-Nd isotopes Zajkan intrusion Tarom-Hashtjin Alborz magmatic belt NW Iran |
| ISSN号 | 0812-0099 |
| DOI | 10.1080/08120099.2022.2068648 |
| 英文摘要 | The late Eocene high-K to shoshonitic Zajkan intrusion, situated in the Tarorn-Hashtjin magmatic belt (THMB), NW Iran, ranges in composition from gabbro to pyroxene quartz monzodiorite, pyroxene quartz monzonite and monzogranite, and is classified as an i-type metaluminous granitoid. On the primitive mantle-normalised spider diagram, these rocks demonstrate negative high field strength element (HFSE) anomalies, large-ion lithophile element (LILE) enrichment, and positive Pb anomaly, indicating a subduction-related signature. Furthermore, the granitoids are characterised by coherent chondrite-normalised rare earth element patterns with high light rare earth elements/heavy rare earth elements (LREE/HREE) and moderate to weakly negative Eu anomalies (Eu/Eu* = 0.6-0.86). LA-ICP-MS zircon U-Pb datirtg . demonstrates that the Zajkan intrusion crystallised at ca 36.5 Ma. Relatively low to moderate Sr-87/Sr-86 ratios (0.7046-0.7061) and positive epsilon Nd-(t) values (1.52-1.88) of the Zajkan samples are consistent with an enriched lithospheric mantle source that was metasomatised by an earlier subducted slab. Geochemical features show that the parental magma of the Zajkan intrusion likely resulted from a partial melting of metasomatised amphibolebearing mantle source. Sr-Nd isotope modelling is consistent with the Zajkan intrusion formed from a mix of similar to 80% of a mantle-derived magma and similar to 20% of a juvenile lower crustal-derived magma. Partial melting of the metasomatised mantle may have resulted from late Eocene lithospheric thinning and hot asthenospheric upwelling through slab roll-back or lithospheric delamination. |
| WOS关键词 | ARABIA-EURASIA COLLISION ; A-TYPE GRANITOIDS ; PLUTONIC COMPLEX ; PORPHYRY CU ; POSTCOLLISIONAL MAGMATISM ; ALKALINE MAGMATISM ; ALBORZ MOUNTAINS ; VOLCANIC-ROCKS ; TRACE-ELEMENTS ; OROGENIC BELT |
| 资助项目 | Second Tibetan Plateau Scientific Expedition and Research[2019QZKK0806] ; Office of Vice Chancellor for Research and Technology, University of Zanjan, Iran |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000796469300001 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 资助机构 | Second Tibetan Plateau Scientific Expedition and Research ; Second Tibetan Plateau Scientific Expedition and Research ; Office of Vice Chancellor for Research and Technology, University of Zanjan, Iran ; Office of Vice Chancellor for Research and Technology, University of Zanjan, Iran ; Second Tibetan Plateau Scientific Expedition and Research ; Second Tibetan Plateau Scientific Expedition and Research ; Office of Vice Chancellor for Research and Technology, University of Zanjan, Iran ; Office of Vice Chancellor for Research and Technology, University of Zanjan, Iran ; Second Tibetan Plateau Scientific Expedition and Research ; Second Tibetan Plateau Scientific Expedition and Research ; Office of Vice Chancellor for Research and Technology, University of Zanjan, Iran ; Office of Vice Chancellor for Research and Technology, University of Zanjan, Iran ; Second Tibetan Plateau Scientific Expedition and Research ; Second Tibetan Plateau Scientific Expedition and Research ; Office of Vice Chancellor for Research and Technology, University of Zanjan, Iran ; Office of Vice Chancellor for Research and Technology, University of Zanjan, Iran |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/105930]  |
| 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 |
| 通讯作者 | Mokhtari, M. A. A. |
| 作者单位 | 1.Univ Zanjan, Fac Sci, Dept Geol, Zanjan, Iran 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mokhtari, M. A. A.,Kouhestani, H.,Qin, K. Z.. Zircon U-Pb age, whole-rock geochemistry and Nd-Sr-Pb isotope constraints on petrogenesis of the Eocene Zajkan gabbro-monzogranite intrusion, Tarom-Hashtjin magmatic belt, NW Iran[J]. AUSTRALIAN JOURNAL OF EARTH SCIENCES,2022:18. |
| APA | Mokhtari, M. A. A.,Kouhestani, H.,&Qin, K. Z..(2022).Zircon U-Pb age, whole-rock geochemistry and Nd-Sr-Pb isotope constraints on petrogenesis of the Eocene Zajkan gabbro-monzogranite intrusion, Tarom-Hashtjin magmatic belt, NW Iran.AUSTRALIAN JOURNAL OF EARTH SCIENCES,18. |
| MLA | Mokhtari, M. A. A.,et al."Zircon U-Pb age, whole-rock geochemistry and Nd-Sr-Pb isotope constraints on petrogenesis of the Eocene Zajkan gabbro-monzogranite intrusion, Tarom-Hashtjin magmatic belt, NW Iran".AUSTRALIAN JOURNAL OF EARTH SCIENCES (2022):18. |
入库方式： OAI收割
来源：地质与地球物理研究所
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