Rare earths, trace element characteristics of high-Mg volcanic rocks of yixian formation in sihetun west liaoning province and its apocalypse
文献类型：期刊论文
| 作者 | Hong, Z; Qi, Z |
| 刊名 | JOURNAL OF RARE EARTHS
 |
| 出版日期 | 2005-08-01 |
| 卷号 | 23期号:4页码:502-506 |
| 关键词 | Sanukite Trace Element Characteristics High-mg Volcanic Rocks Yixian Formation Sihetun Rare Earths |
| ISSN号 | 1002-0721 |
| 文献子类 | Article |
| 英文摘要 | The high-Mg volcanic rocks of the Yixian Formation in the Sihetun area have the obvious characteristics of mantle-derived lava in rare earth, trace element characteristics with high Mg # (62 similar to 70) and high content of compatible elements. In the meantime, the volcanic rocks also have the obvious characteristics of Crust-source material in rare earth, trace element characteristics with high Sigma REE (158.78 x 10(-6) similar to 359.66 x 10(-6)), high (La/Yb)(N)(14.61 similar to 29.60), high La/Nb(2.37 similar to 7.52) and high Ba/Nb(67.58 similar to 205.96), obvious positive anomaly of Pb and negative anomaly of Nb, Ta in trace element spider-gram. In Sr-Nd-Pb isotope the (Sr-87/Sr-86)(i) ratio is higher than 0.706 and the epsilon(Nd)(t) ratio is from - 3.4 to - 13, both reflect enriched Mantle characteristics. The characteristics above of the volcanic rocks combined with the content of Sr, Ba, Y, Yb and the ratio of Sr/Y show that the volcanic rocks have the property of the Sanukite rocks in Setouchi Japan beside subduction zone, and illuminate that the Sanukite rocks can be formed not only in island-are near subduction zone but also in intro-plate. The analysis indicates that the high-Mg volcanic rocks in the Sihetun area result from the collective function of mantle-derived lava and crust-source materials. The result illuminates that the West Liaoning region is very special in tectonic geochemical background in Cretaceous in East China, and is an ideal region for us to further study the characteristics of magmatic activity as well as the process of Crust-Mantle interaction in Eastern China. |
| WOS关键词 | FEATHERED DINOSAURS ; CHINA ; ORIGIN ; TRACHYANDESITES ; GRANODIORITE ; EVOLUTION |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000232021000025 |
| 出版者 | METALLURGICAL INDUSTRY PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/65608]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Hong, Z |
| 作者单位 | 1.NW Univ Xian, Key Lab Continental Dynam, Xian 710069, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hong, Z,Qi, Z. Rare earths, trace element characteristics of high-Mg volcanic rocks of yixian formation in sihetun west liaoning province and its apocalypse[J]. JOURNAL OF RARE EARTHS,2005,23(4):502-506. |
| APA | Hong, Z,&Qi, Z.(2005).Rare earths, trace element characteristics of high-Mg volcanic rocks of yixian formation in sihetun west liaoning province and its apocalypse.JOURNAL OF RARE EARTHS,23(4),502-506. |
| MLA | Hong, Z,et al."Rare earths, trace element characteristics of high-Mg volcanic rocks of yixian formation in sihetun west liaoning province and its apocalypse".JOURNAL OF RARE EARTHS 23.4(2005):502-506. |
入库方式： OAI收割
来源：地质与地球物理研究所
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