Magmatic pulses of the Tatun Volcano Group, northern Taiwan, revisited: Constraints from zircon U-Pb ages and Hf isotopes
文献类型：期刊论文
| 作者 | Chu, Mei-Fei1; Lai, Yu-Ming2; Li, Qiuli3; Chen, Wen-Shan4; Song, Sheng-Rong4; Lee, Hao-Yang5; Lin, Te-Hsien4 |
| 刊名 | JOURNAL OF ASIAN EARTH SCIENCES
 |
| 出版日期 | 2018-11-01 |
| 卷号 | 167页码:209-217 |
| 关键词 | Taiwan Tatunvolcano Zircon U-Pb geochronology Hf isotope |
| ISSN号 | 1367-9120 |
| DOI | 10.1016/j.jseaes.2018.05.028 |
| 英文摘要 | The initiation and duration of magmatism in the Tatun Volcano Group (TVG), likely resulting from extensional collapse of the northern Taiwan mountain belt, remains an important issue of debates in the Taiwan orogeny. Here we report a detailed study of U-Pb ages determined by SIMS and LA-ICPMS, together with Hf isotopic data, of zircon separates from a total of 22 extrusive rocks from the TVG lava flow and additional two andesites from Keelungyu (KLY), a volcanic islet off NE Taiwan. Magmatic zircons from the TVG are characterized by uniform and high Hf isotopic ratios, with epsilon(Hf)(T) mostly from +20 to +10. Their overall Pb-206/U-238 ages suggest that the TVG magmatism was initiated similar to 3 Ma but more active <= 0.8 Ma with a flare up <= 0.35 Ma. Magmatic zircons from the two KLY samples reveal identical Pb-206/U-238 ages (0.41 Ma), coupled with Hf isotopes [epsilon(Hf)(T): +25 to +9] comparable to those of the TVG. Thus, KLY is proposed as part of the TVG. Consequently, we argue that the main body of the TVG formed <= 0.8 Ma by post-collisional volcanism, but the mechanism resulting in the magmatic episodes >= 1.0 Ma remains obscure due to the scarcity of rock exposures. |
| WOS关键词 | POSTCOLLISIONAL MAGMATISM ; GEOCHEMICAL CONSTRAINTS ; EVOLUTION ; GEOCHRONOLOGY ; PETROGENESIS ; GENERATION ; ANDESITE ; GENESIS ; ROCKS ; LEAD |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000451492800015 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/89632]  |
| 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 | Chu, Mei-Fei |
| 作者单位 | 1.Natl Taiwan Univ, Inst Oceanog, Taipei, Taiwan 2.Natl Taiwan Normal Univ, Dept Earth Sci, Taipei, Taiwan 3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China 4.Natl Taiwan Univ, Dept Geosci, Taipei, Taiwan 5.Acad Sinica, Inst Earth Sci, Taipei, Taiwan |
| 推荐引用方式 GB/T 7714 | Chu, Mei-Fei,Lai, Yu-Ming,Li, Qiuli,et al. Magmatic pulses of the Tatun Volcano Group, northern Taiwan, revisited: Constraints from zircon U-Pb ages and Hf isotopes[J]. JOURNAL OF ASIAN EARTH SCIENCES,2018,167:209-217. |
| APA | Chu, Mei-Fei.,Lai, Yu-Ming.,Li, Qiuli.,Chen, Wen-Shan.,Song, Sheng-Rong.,...&Lin, Te-Hsien.(2018).Magmatic pulses of the Tatun Volcano Group, northern Taiwan, revisited: Constraints from zircon U-Pb ages and Hf isotopes.JOURNAL OF ASIAN EARTH SCIENCES,167,209-217. |
| MLA | Chu, Mei-Fei,et al."Magmatic pulses of the Tatun Volcano Group, northern Taiwan, revisited: Constraints from zircon U-Pb ages and Hf isotopes".JOURNAL OF ASIAN EARTH SCIENCES 167(2018):209-217. |
入库方式： OAI收割
来源：地质与地球物理研究所
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