摘要
兰州地区最古老黄土剖面露头良好,地层出露较齐全,通过剖面磁性地层研究,确定兰州地区最古老黄土形成于1.84MaBP以前,对山城湾岭黄土剖面进行了粒度及孢粉的研究,探讨了第四纪沉积环境的演化。
The oldest loess section in the Lanzhou area outcrops very well,with complete strata exposed.
Based on the magnetostratigraphic study,the oldest loess in this area is dated to 1.84 Ma ago.This paper
deals mainly with study of the granulity and sporo-pollen and probes into the evolution of the Quaternary
sedimentary environments.
出处
《地层学杂志》
CSCD
北大核心
2004年第2期148-151,共4页
Journal of Stratigraphy
关键词
粒度学
孢粉学
最古老黄土
兰州地区
甘肃
granulity
sporo-pollen
the oldest loess section
Quaternary
Lanzhou
Gansu
