摘要
地层中的放射性核素Ｔｈ、Ｕ和Ｋ的分布规律，与岩石的岩性、矿物成分、成岩环境和地下水活动有关。本文根据三肇地区２７口探井的６４６个取心岩样的自然伽马能谱和室内分析出的岩性，通过自然伽马能谱数据库管理系统，给出Ｔｈ—Ｕ交会图和Ｔｈ—Ｋ交会图，从而找出自然伽马能谐与岩性的关系。
The distribution regUlarity of radionuclides Th,U and K in strata is related to litholigic character,mineral composition, diagenetic environment and groundwater activity.On the basis Of natural gamma spectra and indoor analyses of 646 core samples from 27 deep drill holes in Sanzhao area and through database management system of natural gamma spectra,the authors succeeded in drawing Th-U intersection diagram and Th-K intersection diagram,thus finding out the relationship between natural gamma spectra and lithologic character.
出处
《物探与化探》
CAS
CSCD
1996年第3期198-201,共4页
Geophysical and Geochemical Exploration
关键词
自然γ能谱
放射性核素
岩性
交会图
岩石
natural gamma spectrum
radionuclide
litholigic character
intersection diagram
