摘要
用裂变径迹法对兰州九洲台黄土中同生石膏矿物作了年龄测定,得出年龄值为1.46—1.52Ma,从而推断九洲台黄土形成时代应早于1.5Ma。
The application of the fission track dating to the Jiuzhoutai loess profile in Lanzhou shows that the intergrowth gypsum on the bottom of the paofile was formed about 1.46 to 1.52 Ma ago, from which deducing that the age of loess accumulation at Jiuzhoutai was more than 1.5 Ma.
出处
《核技术》
CAS
CSCD
北大核心
1991年第7期426-427,共2页
Nuclear Techniques
关键词
黄土
石膏
裂变径迹年龄
Loess Gypsum Fission Track dating
