LA-ICP-MS U-Pb geochronology of detrital zircons from the Huade Group in the northern margin of the North China Craton and its tectonic significance.
文献类型：期刊论文
| 作者 | Hu Bo1,2; Zhai MingGuo1,2; Guo JingHui1,2; Peng Peng1,2; Liu Fu1,2; Liu Shuang1,2 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2009 |
| 卷号 | 25期号:1页码:193-211 |
| 关键词 | Huade Group Detrital zircon U-Pb age North China Craton Continental margin rift |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | The Huade Group, consisting of low-grade and un-metamorphosed sedimentary rocks without volcanic rock, is located at the northern margin of the North China Craton and adjoining the south part of the Central Asian Orogenic Belt. It is east to the Paleo-Mesoproterozoic Bayan Obo and Zhaertai-Langshan rifts and :northwest to the Paleo-Neoproterozoic Yanshan aulacogen, in which the typical Changcheng, Jixian and Qingbaikou systems are developed. The Fengzhen Group (khondalite series), which were metamorphosed to granulite facies with 1.9 similar to 1.8Ga U-Pb isotopic ages, occur south to the Hustle Group. The Paleozoic rocks of the Central Asian Orogenic Belt outcrop north to the Huade Group. The stratigraphic sequences show several cycles of deposition. Each of them developed pebbly sandstones, sandstones, carbonate rocks, pelites from bottom upward. The rock association indicates the sedimentary environments evolving from fluvial through littoral to shallow marine facies. The stratigraphic sequences of the Huade Group are comparable to those of the Banyan Obo Group and the Zhaertai Group. The LA-ICP-MS U-Pb ages of the detrital zircons from four samples of the Huade Group show two main age peaks at 1800 +/- 50Ma and 1850 +/- 50Ma, as well as two other minor age peaks at 2500Ma and similar to 2000Ma. All the four age populations correspond to significant tectonic-thermal events of the North China Craton. The youngest concordant age of the detrital zircons from meta-pebbly arkosite at the bottom of the Huade Group is 1758 +/- 7Ma, which constrains the oldest sedimentary age of this group. According to the Cl, images of the zircon grains, the main peaks at 1800 50Ma and 1850 50Ma are mostly of metamorphic grains, and a few of magmatic ones. This indicates that the provenances of the Huade Group are mainly Paleoproterozoic metamorphic rocks, with minor magmatic rocks. The detrital zircons of similar to 2500Ma and similar to 2000Ma represent older provenances of the Huade Group. The U-Pb ages of detrital zircons constrain the sedimentary age of the Huade Group from Late Paleeoproterozoic to Mesoproteozoic. The age populations correspond to significant tectonic-thermal events of the North China Craton and there is no Palcozoic age information related to geological events of the Central Asian Orogenic Belt. The stratigraphic characteristics indicate the Huade Group is a stable shallow-hypabyssal sedimentary basin. The Huade basin, Zhaertai-Langshan basin and Bayan Obo basin commonly constitute a passive continental margin rift system at the northern margin of the North China Craton. This rift would have. initiated coeval with the Yanshan and Xionger aulacogens. It is reasonable to suggest that the boundary between the North China Craton and the Central Asian Orogenic Belt is further north to the Huade Basin. Based on detailed analyses of the characteristics of detrital zircons, we suggest that the khondalite series south to the Huade Group were likely to be the main provenance of the Halide Group. |
| WOS关键词 | PALEO-ASIAN OCEAN ; INNER-MONGOLIA ; INDICATING SIGNIFICANCE ; VOLCANIC-ROCKS ; SANGGAN AREA ; CONSTRAINTS ; EVOLUTION ; AGE ; BELT ; HF |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000264381800017 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/70880]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Hu Bo |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Key Lab Mineral Resources, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu Bo,Zhai MingGuo,Guo JingHui,et al. LA-ICP-MS U-Pb geochronology of detrital zircons from the Huade Group in the northern margin of the North China Craton and its tectonic significance.[J]. ACTA PETROLOGICA SINICA,2009,25(1):193-211. |
| APA | Hu Bo,Zhai MingGuo,Guo JingHui,Peng Peng,Liu Fu,&Liu Shuang.(2009).LA-ICP-MS U-Pb geochronology of detrital zircons from the Huade Group in the northern margin of the North China Craton and its tectonic significance..ACTA PETROLOGICA SINICA,25(1),193-211. |
| MLA | Hu Bo,et al."LA-ICP-MS U-Pb geochronology of detrital zircons from the Huade Group in the northern margin of the North China Craton and its tectonic significance.".ACTA PETROLOGICA SINICA 25.1(2009):193-211. |
入库方式： OAI收割
来源：地质与地球物理研究所
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