摘要
岩石中铀、钍和钾三元素的含量决定了岩石的自然伽马放射性强度,三元素的含量约占地层总自然放射性元素含量的99%以上,其他放射性元素含量不超过1%,且自然放射性能量低,半衰期短,几乎检测不到,可以忽略不计。对云南楚雄盆地晚三叠世的6条剖面进行了实测,并取得岩石样品,样品数共计105件,利用便携式伽马能谱仪对岩石样品进行伽马能谱测量,测出了样品中主要的三种天然放射性元素铀、钍、钾的含量,旨在根据所测得数据来分析这些放射性元素含量之间的关系来说明楚雄盆地中的一些地质问题。
The content of uranium,thorium and potassium in rocks will determine the natural gamma radioactivity intensity of rocks. The content of three elements accounts for about ninety-nine percent of the total content of natural radioactive elements formation. The content of other radioactive elements is less than one percent. Natural radioactive energy is low,short half-life and almost undetectable. It can be ignored. In Chuxiong Basin of late Triassic,six profiles were measured. We have got rock samples,including the samples for a total of one hundred and five pieces of rock sample to make use of portable gamma spectrometer and gamma energy in spectrum measurement. We have measured the samples of three main elements of content of natural radioactive uranium,thorium and potassium. The purpose of this paper is to analyze the relationship between the contents of these radioactive elements according to the measured data to explain some geological problems in Chuxiong Basin.
出处
《中国锰业》
2017年第6期38-41,共4页
China Manganese Industry
基金
中国地质调查局油气资源调查中心地质调查资助项目(1211302108020-2)
关键词
楚雄盆地
晚三叠世
放射性元素
铀、钍、钾含量
Chuxiong Basin
Late Triassi
Radioactive element
Contents of uranium, Thorium and potassium
