Preliminary study on K-Ar chronology, petrology and geochemistry of Yandunling volcanic rocks, Hepu county, Guangxi
文献类型：期刊论文
| 作者 | Li, N.; Fan, Q. C.; Wang, T. H.; Sun, Q.; Sui, J. L. |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2007-06-01 |
| 卷号 | 23期号:6页码:1423-1430 |
| 关键词 | yandurding volcano petrology and geochemistry Weizhou island north Hainan island |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | Yandunling volcano, which is located in Hepu county, the Guangxi Zhuang Autonomous Region, is a small volcano with central eruption style in the Quaternary Period. Its eruption represents the volcanic activity in south China in Quaternary. The products of Yandurling volcano are trachybasalt. Mg-# values (59 similar to 69) are from middle to high, and titanium and alkali are comparatively high. The chondrite-normalized abundances of REE diagrams of Yandurling and its neighbour Yantouling volcanic rocks are quite similar and the curves are almost overlapped. The curves show a little steep tilt to HREE, which belongs to LREE-enriched type. The primitive-mantle normalized trace element abundance curves are also similar, indicating they have the same magma source. The variations of Ba/Nb ratios of Yandurling volcanic rocks are smaller than those from north Hainan and Weizhou Islands, but La/Nb ratios are low and stable which are similar to those from OIB. The plot of incompatible elements of Nb/U and Th also shows that the rocks come from a magma source similar to OIB. The evidences from petrology and geochemistry suggest that the volcanic rocks in Yandunling are little evolved magma rather than primitive basalt from mantle source and they weren't affected by crystal differentiation, were they contaminated by crustal materials. These rocks have similar (87) Sr/(86) Sr and (143) Nd/(144) Nd ratios. The volcanic activities could be dated back to early Pleistocene according to K-Ar dating combined with geological characteristics of volcanic rocks and previous works, which correspond to early volcanic activities of Weizhou Island in Beibu Bay and Duowenling period of volcanic activities in north Hainan Island. |
| WOS关键词 | ISLAND |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000248791900018 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/67268]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Li, N. |
| 作者单位 | 1.China Earthquake Adm, Inst Geol, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, N.,Fan, Q. C.,Wang, T. H.,et al. Preliminary study on K-Ar chronology, petrology and geochemistry of Yandunling volcanic rocks, Hepu county, Guangxi[J]. ACTA PETROLOGICA SINICA,2007,23(6):1423-1430. |
| APA | Li, N.,Fan, Q. C.,Wang, T. H.,Sun, Q.,&Sui, J. L..(2007).Preliminary study on K-Ar chronology, petrology and geochemistry of Yandunling volcanic rocks, Hepu county, Guangxi.ACTA PETROLOGICA SINICA,23(6),1423-1430. |
| MLA | Li, N.,et al."Preliminary study on K-Ar chronology, petrology and geochemistry of Yandunling volcanic rocks, Hepu county, Guangxi".ACTA PETROLOGICA SINICA 23.6(2007):1423-1430. |
入库方式： OAI收割
来源：地质与地球物理研究所
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