摘要
本文通过对包头地区地质时期自然环境演变的分析 ,着重阐述了第三纪和第四纪自然地理环境演化的情况 ,以及现代自然景观形成的地质原因 。
The article discusses emphatically the situation of the chenge of natural geography and the geographical reason of modern natural view at the third and fourth leuturies, by analyzing the natural change in geological period in Baotou area. which could be the basis for dividing natural geography in Baotou.
出处
《阴山学刊》
2000年第5期36-38,共3页
Yinshan Academic Journal
关键词
自然环境演变
第三纪
第四纪
包头地区
Natual geography evolution
the third century
the forth century
