Study on geochemistry and development mechanism of Proterozoic chert from Xiong'er Group in southern region of North China Craton
文献类型：期刊论文
| 作者 | Li HongZhong1,2; Zhou YongZhang2,3; Zhang LianChang1; He JunGuo2,3; Yang ZhiJun2,3; Liang Jin2,3; Zhou LiuYu2,3; Waxi LaLi2,3 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2012-11-01 |
| 卷号 | 28期号:11页码:3679-3691 |
| 关键词 | Chert Proterozoic Xiong'er Group Volcanic activity Hydrothermal sedimentation |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | Xiong'er Group, mainly composed of weakly-basic intermediate rocks, is the production of paleoproterozoic stretching-cracking of southern region in North China platform. The sedimentary rocks, mainly in the top and bottom layers of Xiong'er Group, exist as interlayers in the volcanic rocks. Through the geochemical analysis and SEM-EDS analysis of cherts sandwich in volcanic rocks, from Xiong'er Group of top Majiahe Formation, the results show that the cherts, in low degree of crystallization, SiO2 are 65.55% similar to 80.33% with 73.41% as its average, are hydrothermal sedimentary genesis for their geochemical characteristics, such as the Ba, U, Sigma REE, Al/(Al + Fe + Mn), Fe/Ti, (Fe + Mn)/Ti, Ba/Sr values. The charts, are formed in marine sedimentary environment, at the continental margin, for their values of Al/(Al + Fe + Mn), MnO/TiO2, Al/(Al + Fe), Al2O3/(Al2O3 + Fe2O3), Sc/Th, U/Th, (La/Yb)(N), delta Ce, (La/Ce)(N). The cherts have closing relationship to volcanic eruption, supported by the values of K2O/Na2O, SiO2/(K2O + Na2O) and SiO2/Al2O3. Revealed by the cherts' Al2O3/Tio(2), V/Cr and Ni/Co values, the magmatism to charts are basic-intermediate magma. The chert sedimentary system is controlled by the endogenic geological process, whose hydrothermal sediment system come from the heating effect of the magma. The hydrothermal system is enriched during the dissolution and leaching, and works as the primary material source to cherts. |
| WOS关键词 | RARE-EARTH ELEMENTS ; EAST PACIFIC RISE ; DEPOSITIONAL-ENVIRONMENTS ; QINLING OROGEN ; VENT-FIELD ; SEDIMENTS ; CALIFORNIA ; ROCKS ; BASIN ; FRANCISCAN |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000312572600018 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/84140]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Li HongZhong |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Mineral Resource, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Guangdong Prov Key Lab Geol Proc & Mineral Resour, Guangzhou 510275, Guangdong, Peoples R China 3.Sun Yat Sen Univ, Dept Earth Sci, Guangzhou 510275, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li HongZhong,Zhou YongZhang,Zhang LianChang,et al. Study on geochemistry and development mechanism of Proterozoic chert from Xiong'er Group in southern region of North China Craton[J]. ACTA PETROLOGICA SINICA,2012,28(11):3679-3691. |
| APA | Li HongZhong.,Zhou YongZhang.,Zhang LianChang.,He JunGuo.,Yang ZhiJun.,...&Waxi LaLi.(2012).Study on geochemistry and development mechanism of Proterozoic chert from Xiong'er Group in southern region of North China Craton.ACTA PETROLOGICA SINICA,28(11),3679-3691. |
| MLA | Li HongZhong,et al."Study on geochemistry and development mechanism of Proterozoic chert from Xiong'er Group in southern region of North China Craton".ACTA PETROLOGICA SINICA 28.11(2012):3679-3691. |
入库方式： OAI收割
来源：地质与地球物理研究所
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