| 崇明岛CY孔沉积物的磁性特征及其环境意义 |
| |
| 引用本文： | 贾海林,刘苍宇,张卫国,孟翊,洪雪晴.崇明岛CY孔沉积物的磁性特征及其环境意义[J].沉积学报,2004,22(1):117-123. |
| |
| 作者姓名： | 贾海林 刘苍宇 张卫国 孟翊 洪雪晴 |
| |
| 作者单位： | 华东师范大学河口海岸国家重点实验室,河口海岸研究所,上海,200062;华东师范大学地理系,上海,200062 |
| |
| 基金项目： | 国家自然科学基金
,
国家重点基础研究发展计划(973计划) |
| |
| 摘 要： | 对崇明岛CY孔样芯磁性特征的研究表明,该孔沉积物的磁性矿物以假单畴/多畴晶粒的亚铁磁性矿物为主.按磁化率等磁参数的变化可将该孔划分为7个磁性层.同时,参照沉积物粒度、化学分析结果,探讨了磁参数与沉积动力环境、地球化学环境的关系,并以磁性层位划分与岩性岩相分析、 14C测年相结合,建立了长江河口中全新世以来的沉积相序和地层层序.
|
| 关 键 词： | 磁性特征 沉积动力 地球化学 沉积环境 崇明岛 |
| 文章编号： | 1000-0550(2004)01-0117-07 |
| 修稿时间： | 2003年3月12日 |
Magnetic Properties of Core CY from Chongming Island, the Yangtze Estuary and Its Environmental Significance |
| |
| JIA Hai lin,LIU Cang yu,ZHANG Wei guo,MENG Yi,HONG Xue qing.Magnetic Properties of Core CY from Chongming Island, the Yangtze Estuary and Its Environmental Significance[J].Acta Sedimentologica Sinica,2004,22(1):117-123. |
| |
| Authors: | JIA Hai lin LIU Cang yu ZHANG Wei guo MENG Yi HONG Xue qing |
| |
| Institution: | JIA Hai lin 1 LIU Cang yu 1 ZHANG Wei guo 1 MENG Yi 1 HONG Xue qing 2 1 |
| |
| Abstract: | Magnetic measurements were conducted on Core CY from Chongming Island, the Yangtze Estuary. The results indicate that ferrimagnetic mineral of multi domain (MD)/pseudo single domain (PSD) in size dominates the magnetic propertiesof the samples. The core can be divided into seven layers according to the variations of magnetic susceptibility and other magnetic parameters. In combination with particle size and geochemical analyses, the relationships between magnetic properties, sedimentary hydrodynamics and geochemical environment are discussed. On the basis of magnetic properties, lithofacies and 14 C dating, sedimentary facies and stratigraphy of the Yangtze Estuary since mid Holocene are established. |
| |
| Keywords: | magnetic properties sedimentary hydrodynamics geochemistry sedimentary environment Chongming Island |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
