摘要
通过滑坡形成期次的划分 ,确定区域滑坡灾害旋回周期 ,对制定区域滑坡防治对策具有重要意义。借助已较成熟的地貌发育史、气候史和新构造运动演化史 ,再应用14 C和热释光等绝对测年法 ,将陇中地区的滑坡划分为古滑坡 (Q13 )、老滑坡 (Q14 )、新滑坡 (Q24 )和现代滑坡 (Q3 4)四个活跃期。
It is very significant for regional landslide prevention and remediation to divide the landslide into stages and analyze landslide cycle. With 14 C and thermoluminescent dating, analysis of history of geomorphic development, climate and neotectonic movement, the landslides in Middle Gansu Province are divided into four dynamic stages: ancient landslide(Q 1_3), old landslide(Q 1_4), new landslide(Q 2_4) and modern landslide(Q 3_4).
出处
《华南地质与矿产》
CAS
2002年第2期24-28,共5页
Geology and Mineral Resources of South China
关键词
甘肃
滑坡
古环境
第四纪
新构造运动
地貌
landslide
paleoenvironment
Quaternary
neotectonic movement
