Geochemical research on C-O and Sr-Nd isotopes of mantle-derived rocks from Shandong Province, China
文献类型：期刊论文
| 作者 | Liu, JM; Zhang, HF; Sun, JG; Ye, J |
| 刊名 | SCIENCE IN CHINA SERIES D-EARTH SCIENCES
 |
| 出版日期 | 2004-02-01 |
| 卷号 | 47期号:2页码:171-180 |
| 关键词 | mantle-derived rocks carbonate minerals C-O isotope Sr-Nd isotope lithospheric mantle Shandong |
| ISSN号 | 1006-9313 |
| DOI | 10.1360/02yd0432 |
| 文献子类 | Article |
| 英文摘要 | This paper presents systematic studies on the C-O and Sr-Nd isotopic compositions for Cretaceous Badou carbonatites, Fangcheng basalts, and Jiaodong lamprophyres and Paleozoic Mengyin kimberlites in Shandong Province, China. Paleozoic kimberlites have normal and uniform C-O isotopic compositions with delta(13)C and delta(18)O in the range of -4.8% - -7.6% and +9.9% - +13.2%, respectively. However, Cretaceous three different types of mantle-derived rocks have quite different C-O isotopic compositions, indicating that the mantle sources are probably partially contaminated with organic carbon-bearing crustal materials. These Cretaceous rocks show uniform and EMII-like Sr-Nd isotopic compositions and also indicate that the mantle sources were affected by recycled crustal materials. Comparative studies of C-O and Sr-Nd isotopes reveal that the lithospheric mantle beneath the eastern North China Craton had different isotope characteristics in the Paleozoic, the early Cretaceous, and the Tertiary time. This demonstrates that the lithospheric mantle beneath the region underwent at least twice reconstructions since the Paleozoic. Available data imply that the first reconstruction mainly happened during the Triassic-Jurassic time with gradual changes and the second in the Cretaceous with abrupt changes. Results also show that the early Cretaceous (especially at 120-130 Ma) was perhaps the key period leading to the dramatic change of the Mesozoic geodynamics on the eastern North China Craton. |
| WOS关键词 | NORTH CHINA ; EASTERN CHINA ; JIAODONG PENINSULA ; FLUID INCLUSIONS ; SILICATE ROCKS ; TRACE-ELEMENT ; CARBON ; CRATON ; XENOLITHS ; ALKALINE |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000188966500009 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/79285]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Liu, JM |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Jilin Univ, Sch Earth Sci, Changchun 130061, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, JM,Zhang, HF,Sun, JG,et al. Geochemical research on C-O and Sr-Nd isotopes of mantle-derived rocks from Shandong Province, China[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2004,47(2):171-180. |
| APA | Liu, JM,Zhang, HF,Sun, JG,&Ye, J.(2004).Geochemical research on C-O and Sr-Nd isotopes of mantle-derived rocks from Shandong Province, China.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,47(2),171-180. |
| MLA | Liu, JM,et al."Geochemical research on C-O and Sr-Nd isotopes of mantle-derived rocks from Shandong Province, China".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 47.2(2004):171-180. |
入库方式： OAI收割
来源：地质与地球物理研究所
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