Mesozoic high-Sr, low-Y and low-Sr, low-Y types granitoids in the northern Hebei province: Geochemistry and petrogenesis and its relation to mineralization of gold deposits
文献类型：期刊论文
| 作者 | Li, CD; Zhang, Q; Miao, LC; Meng, XF |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2004-03-01 |
| 卷号 | 20期号:2页码:269-284 |
| 关键词 | mesozoic magmatism high-Sr and low-Y type granitoids low-Sr and Y type granitoids gold deposit North Hebei |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | North Hebei is one of important gold-producing areas in China. Most gold deposits in the northern Hebei are related to Mesozoic intermediate -acid intrusions, although they are different in genetic types. Based on the studies of this paper, these intrusions can proximately be divided into two types: a high-Sr and low-Y type and a low-Sr and Y type. The first type of intrusions has the geochemical features of adakite, and therefore it is inferred to be a possible product of partial melting of the over-thickened continental lower crust with a residual phase of eclogite or amphibole eclogite. The second type, ontke one hand, is different from the first one by its low Sr and Al contents and obviously negative Eu anomaly; on the other hand, it is similar to adakite by its low Y and HREE contents. Therefore, it is suggested that the low-Sr, low-Y type intrusions were generated by partial melting of relatively thick lower crust under high pressure granulite facies conditions with plagioclase to be the dominant residual phase. Considering that the gold deposits are spatio-temporally associated with the two types of intrusions and previous S, Pb, H, O and C isotopic data of the gold deposits in the North Hebei, which indicate that the mineralizing fluids and/or materials are most likely derived from mantle-lower crustal source, we concluded that the gold deposits have genetic relationships with high-Sr, low-Y type and- low-Sr, low-Y type intrusions. This will be helpful in understanding the genesis and exploring mineral deposits in the northern Hebei Province. |
| WOS关键词 | UNDERPLATED BASALTIC CRUST ; NB-ENRICHED LAVAS ; CALC-ALKALINE ; EXPERIMENTAL CONSTRAINTS ; VOLCANIC-ROCKS ; EASTERN CHINA ; MANTLE WEDGE ; SLAB ; ADAKITES ; MAGMAS |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000221036700009 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/79291]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Li, CD |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 10029, Peoples R China 2.Reg Geol & Mineral Resources Survey Hebei Prov, Langfang 065000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, CD,Zhang, Q,Miao, LC,et al. Mesozoic high-Sr, low-Y and low-Sr, low-Y types granitoids in the northern Hebei province: Geochemistry and petrogenesis and its relation to mineralization of gold deposits[J]. ACTA PETROLOGICA SINICA,2004,20(2):269-284. |
| APA | Li, CD,Zhang, Q,Miao, LC,&Meng, XF.(2004).Mesozoic high-Sr, low-Y and low-Sr, low-Y types granitoids in the northern Hebei province: Geochemistry and petrogenesis and its relation to mineralization of gold deposits.ACTA PETROLOGICA SINICA,20(2),269-284. |
| MLA | Li, CD,et al."Mesozoic high-Sr, low-Y and low-Sr, low-Y types granitoids in the northern Hebei province: Geochemistry and petrogenesis and its relation to mineralization of gold deposits".ACTA PETROLOGICA SINICA 20.2(2004):269-284. |
入库方式： OAI收割
来源：地质与地球物理研究所
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