| 沉积磁组构在长江三角洲晚第四纪古土壤研究中的应用 |
| |
| 引用本文： | 刘宝柱,丛友滋.沉积磁组构在长江三角洲晚第四纪古土壤研究中的应用[J].海洋地质与第四纪地质,1994,14(2):55-62. |
| |
| 作者姓名： | 刘宝柱 丛友滋 |
| |
| 作者单位： | 同济大学海洋地质与地球物理系，国家海洋局第一海洋研究所 |
| |
| 摘 要： | 本文研究了长江三角洲的地区晚第四纪古土壤的沉积磁组构，其磁化率各向异性度Ｐ值较低，一般在１．０２０左右；磁线理Ｌ值和磁面理Ｆ值，也较低，均＜１．０２０；基质颗粒度ｑ值主要分布在＜０．５和＞０．７两个范围之内，代表正常沉积之中夹杂着相当量的事件，沉积。由此得出结，长江三角洲地区晚第四纪古土壤的母质是河流冲积物。
|
| 关 键 词： | 晚第四纪 古土壤 磁组构 长江 沉积 |
APPLICATIONS OF MAGNETIC FABRICS TO THE STUDIES FO LATE QUATERNARY PALEOSOLS IN THE CHANGJIANG REVER DELTA AREA |
| |
| Liu Baozhu Li Congxian Ye Zhizheng.APPLICATIONS OF MAGNETIC FABRICS TO THE STUDIES FO LATE QUATERNARY PALEOSOLS IN THE CHANGJIANG REVER DELTA AREA[J].Marine Geology & Quaternary Geology,1994,14(2):55-62. |
| |
| Authors: | Liu Baozhu Li Congxian Ye Zhizheng |
| |
| Abstract: | This paper deals with the characteristics of the Late Quaternary paleosols in the Changjiang River Delta area. The paleosols here have a P value about 1.020 which repre- sents low energy,a L value between 1.004 and 1.020,and a F value between 1.003 and 1.020,which are different from those of the loess paleosol sequences on the Loess Plateau of China,The most of the q values are less than 0.5 or greater than 0.7,indicat- ing quite a few abnormal sediments among normal sediments.The author concluded that the parent material of the Late Quaternary paleosols in the Changjiang River Delta area was alluvium,of which those with a q value greater than 0.7 might be formed during flood. |
| |
| Keywords: | Changjiang River Delta Late Quaternary paleosols magnetic fabrics |
| 本文献已被 CNKI 维普 等数据库收录！ |
