Petrogenetic diversity of continental subalkaline volcanic rocks: An example from the Dunhua-Mishan-Dongning volcanic belt.
文献类型：期刊论文
| 作者 | Qin XiuFeng1,2,4; Xu YiGang1; Zhang HuiHuang3; Yu SongYue1,2; Qiu HuaNing1 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2008-11-01 |
| 卷号 | 24期号:11页码:2501-2514 |
| 关键词 | Sub-alkaline basalts Geochemistry Mantle source Cenozoic Dunhua-Mishan NE China |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | Ar-Ar radiometric dating, elemental and Sr-Nd-Pb isotopic analyses have been carried out on three sub-alkaline basalt suites from Hailang (Muchijiang), Jilin (Jixi) and Laoheishan (Dongning), northeast China. Characterized as calc-alkaline series, the Eocene Hailang basaltic andesites are enriched in Si, Na, K, Rb, Ba, Sr and LREE, but are depleted in Fe, Ca, Th, U, Nb, Ta and HREE. These rocks also display similar isotopic compositions ((206)Pb/(204)Pb = 16.56 similar to 16.66, (207)Pb/(204)Pb = 15.44 similar to 15.47, (208)Pb/(204)Pb = 36.80 similar to 36.95; I(Sr) = 0.704882 similar to 0.705564; epsilon(Nd) = - 4.05 similar to 2.29) to the potassic volcanic rocks from Wudalianchi. It is suggested that the Hailang lavas were derived from relatively thick lithospheric mantle which had been modified by slab-released metasomatic fluids. Miocene tholeiites from Jilin show no depletion in Nb, Ta but display enrichment in Ba and Sr. Their Sr-Nd isotopes are similar to those of the Samoa basalts, indicating the involvement of EMII components in addition to the common asthenospheric source. Late Miocene tholeiites from Laoheishan are characterized by low No and K contents, modest enrichment in LREE and no anomalies in Nb and Ta. Their isotopic compositions resemble those of Miocene alkali basalts from Jinpohu, indicating a predominant derivation from the asthenosphere, with some contributions of the enriched EM1-type lithospheric mantle. The source of the Cenozoic magmas in NE China therefore changed from an enriched mantle component in the Eocene to a depleted mantle component in the Miocene. The diverse geochemical characteristics of Cenozoic sub-subalkaline volcanic rocks from NE China thus provide some clues to the petrogenesis of the continental tholeiites. |
| WOS关键词 | CENOZOIC BASALTS ; NORTHEAST CHINA ; CHEMICAL CLASSIFICATION ; LITHOSPHERIC MANTLE ; THOLEIITIC BASALTS ; EASTERN CHINA ; NE CHINA ; ORIGIN ; GEOCHEMISTRY ; CONSTRAINTS |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000262521300005 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/69304]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Qin XiuFeng |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Isotop Geochronol & Geochem, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 4.China Nonferrous Met Resource Geol Survey, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qin XiuFeng,Xu YiGang,Zhang HuiHuang,et al. Petrogenetic diversity of continental subalkaline volcanic rocks: An example from the Dunhua-Mishan-Dongning volcanic belt.[J]. ACTA PETROLOGICA SINICA,2008,24(11):2501-2514. |
| APA | Qin XiuFeng,Xu YiGang,Zhang HuiHuang,Yu SongYue,&Qiu HuaNing.(2008).Petrogenetic diversity of continental subalkaline volcanic rocks: An example from the Dunhua-Mishan-Dongning volcanic belt..ACTA PETROLOGICA SINICA,24(11),2501-2514. |
| MLA | Qin XiuFeng,et al."Petrogenetic diversity of continental subalkaline volcanic rocks: An example from the Dunhua-Mishan-Dongning volcanic belt.".ACTA PETROLOGICA SINICA 24.11(2008):2501-2514. |
入库方式： OAI收割
来源：地质与地球物理研究所
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