Petrochronological Evidence for a Three-Stage Magmatic Evolution of the Youngest Nepheline Syenites from the Ditrau Alkaline Massif, Romania
文献类型：期刊论文
| 作者 | Kloetzli, Urs4; Burda, Jolanta3; Li, Qiu-Li2; Liu, Yu2; Jakab, Gyula1; Ionescu, Lucian6; Tibuleac, Paul5 |
| 刊名 | MINERALS
 |
| 出版日期 | 2022-05-01 |
| 卷号 | 12期号:5页码:27 |
| 关键词 | zircon petrochronology Ditrau Alkaline Massif Eastern Carpathians syenite |
| DOI | 10.3390/min12050657 |
| 英文摘要 | The Ditrau Alkaline Massif (DAM) is an igneous massif in the Eastern Carpathian Mountains of Romania. Numerous geochronological and geochemical studies have proposed a long formation history (ca. 70 m.y.) of the DAM from Middle Triassic to Cretaceous times, which is hardly reconcilable with geochemical evolutionary models and the geotectonic environment during the Mesozoic in this part of the Eastern Carpathian Mountains. In order to put tighter age constraints on the igneous processes forming the DAM, two nepheline syenites from the so-called Ghidut and Lazarea suites were investigated. Based on field and geochemical evidence, the two rock suites represent the younger part of the DAM intrusives. Detailed zircon characterization, in situ zircon SIMS U-Pb dating, and geochemical modelling were used to establish the timing of zircon crystallization and thus to set time constraints on the igneous formation of these parts of the DAM. The intrusion of the dated Ghidut suite sample took place at 232 +/- 1 Ma in the Karnium, whereas the Lazarea suite nepheline syenite sample was intruded at 225 +/- 1 Ma in the Norium. Together with published geochemical and geochronological data, three different magmatic events can thus be identified: Ghidut suite at 231.1 +/- 0.8 Ma, Ditrau suite at 230.7 +/- 0.2 Ma, and Lazarea suite at 224.9 +/- 1.1 Ma. Although the ages of the events 1 and 2 are statistically indistinguishable, the combination of geochemical and petrochronological data certainly favor independent intrusion events. Thus, the igneous events forming the younger parts of the DAM encompassed a time span of ca. 13 m.y. Additionally, each igneous event can tentatively be divided in an older syenitic stage and a younger nepheline syenitic one, each with an age difference of some 100,000 years. No indication of any post 215 Ma igneous or hydrothermal activity was found. The new data and interpretation significantly improve our understanding of the temporal and geochemical evolution of the DAM and of alkaline complexes as such, demonstrating that the underlying igneous processes (melt generation, assimilation, fractionation, and the duration of plumbing systems) work on the same time scale for both sorts of magmatic rock suites. |
| WOS关键词 | PB ZIRCON GEOCHRONOLOGY ; U-PB ; EASTERN CARPATHIANS ; ILIMAUSSAQ COMPLEX ; AR-40/AR-39 ; ROCKS ; U/PB ; TEMPERATURE ; MOUNTAINS ; DURATION |
| 资助项目 | Research Excellence Initiative of the University of Silesia in Katowice ; National Nature Sciences Foundation of China[41673059] |
| WOS研究方向 | Geochemistry & Geophysics ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000803356300001 |
| 出版者 | MDPI |
| 资助机构 | Research Excellence Initiative of the University of Silesia in Katowice ; Research Excellence Initiative of the University of Silesia in Katowice ; National Nature Sciences Foundation of China ; National Nature Sciences Foundation of China ; Research Excellence Initiative of the University of Silesia in Katowice ; Research Excellence Initiative of the University of Silesia in Katowice ; National Nature Sciences Foundation of China ; National Nature Sciences Foundation of China ; Research Excellence Initiative of the University of Silesia in Katowice ; Research Excellence Initiative of the University of Silesia in Katowice ; National Nature Sciences Foundation of China ; National Nature Sciences Foundation of China ; Research Excellence Initiative of the University of Silesia in Katowice ; Research Excellence Initiative of the University of Silesia in Katowice ; National Nature Sciences Foundation of China ; National Nature Sciences Foundation of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/105976]  |
| 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 | Kloetzli, Urs |
| 作者单位 | 1.Mineral Land, Str Spitalului 6, Gheorgheni 535500, Romania 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 3.Univ Silesia Katowice, Fac Nat Sci, Inst Earth Sci, PL-41200 Sosnowiec, Poland 4.Univ Vienna, Dept Lithospher Res, Josef Holaubek Pl 2, A-1090 Vienna, Austria 5.Univ Alexandru Ioan Cuza Iasi, Dept Geol, Blvd Carol I 20 A, Iasi 700506, Romania 6.Romanian Waters Natl Adm Olt Water Directorate, Str Progresului 16, Miercurea Ciuc 530240, Romania |
| 推荐引用方式 GB/T 7714 | Kloetzli, Urs,Burda, Jolanta,Li, Qiu-Li,et al. Petrochronological Evidence for a Three-Stage Magmatic Evolution of the Youngest Nepheline Syenites from the Ditrau Alkaline Massif, Romania[J]. MINERALS,2022,12(5):27. |
| APA | Kloetzli, Urs.,Burda, Jolanta.,Li, Qiu-Li.,Liu, Yu.,Jakab, Gyula.,...&Tibuleac, Paul.(2022).Petrochronological Evidence for a Three-Stage Magmatic Evolution of the Youngest Nepheline Syenites from the Ditrau Alkaline Massif, Romania.MINERALS,12(5),27. |
| MLA | Kloetzli, Urs,et al."Petrochronological Evidence for a Three-Stage Magmatic Evolution of the Youngest Nepheline Syenites from the Ditrau Alkaline Massif, Romania".MINERALS 12.5(2022):27. |
入库方式： OAI收割
来源：地质与地球物理研究所
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