| Autor: |
Wen, Qizhong, Zheng, Honghan, Han, Jiamao, Wang, Junda, Lin, Shaomeng, Qiao, Yulou, Wei, Lanying, Diao, Guiyi |
| Zdroj: |
Chinese Geographical Science; Dec1991, Vol. 1 Issue 4, p370-380, 11p |
| Abstrakt: |
The Nuanquangou loess section in the Longxi Basin has been examined in terms of stratigraphic investigation, includingC dating, paleomagnetic polarity, spore-pollen diagram, and mineral and chemical analyses. The results indicate that the section is one of the ancient loess sections with a continuous sedimentation and composed of homogeneous materials with abundant carbonate. The Brunhes / Matuyama boundary and the Jaramillo event were recorded in the section. Stratigraphically, this section can be divided into the Holocene and the Pleistocene loess. The latter includes Malan, Lishi and Wucheng loess in descending order. They were developed at about 1.2 Ma ago, whereas the Nuanquangou loess section possesses some local characteristics different from those observed in other areas. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
Full text from SpringerLink