Magnetic Properties and Sedimentary Environment of Core XL2 on Xinglong Sand in the North Branch, the Yangtze Estuary

详细信息   

• 责任者：Zhou Kaisheng (Department of Foodstuff & Bioengineering ; Bengbu College ; Bengbu 233030 ; China) ; Meng Yi
• 刊名：Acta Sedimentologica Sinica
• 出版年：2008
• 卷期：26(2)
• 关键词：河口湾沉积作用 ; estuarine sedimentation ; 长江口 ; Yangtze River Mouth
• 页码：p.300-307
• 图表：3 illus., 1 table, 15 refs.
• 分类号：0200
• issnNo：ISSN1000-0550
• isbnNo：CN62-1038/P

摘要

Magnetic measurements were conducted on Core XL2 from Xinglong Sand, the Yangtze Estuary. The result indicates that ferromagnetic mineral of multi-domain (MD)/pseudo-single domain (PSD) in size dominates the magnetic properties of the samples. The core of XL2 can be divided into four layers according to the variations of magnetic susceptibility and other magnetic parameters. On the basis of magnetic properties, lithofacies and foraminifer and assembled character, it can be found that the mode of environmental evolvement of Xinglong sand bar: tidal current ridge- tidal channel-tidal current ridge-supratidal zone (intertidal zone and supertidal zone), forming the sedimentary facial sequence of the filled estuary.