摘要
加速器质谱计是近十年来迅速发展起来的超高灵敏同位素分析技术,灵敏度可达10^(-15),它所需要的样品量极少,仅毫克量级.它已成功地测量了^(14)C、^(10)Be、^(36)Cl、^(26)Al、^(129)l^(41)Ca等宇宙成因核素,而这些核素作为示迹剂或测年计在地质、海洋、环境和考古等多学科的研究中得到广泛的应用.本文是综合评述该方法应用于地球科学所取得的成果、前景和目前尚存在的困难.
Accelerator mass spectroinetry has been proven to be ultrasensitiye for measurement of a number of cosmogenic long-lived radionuclides, such as 14C, 10Be, 36C1, 26Al, 129I and 41Ca, which as tracer or for dating purposes have been wildly used in studies of cosaiic ray history, meteorite history, formation of manganese nodules, pelagic sedimentation, island-arc volcanism, soil erosion as well as in oceanography, climatology, hydrology and archaeology. AMS technique tremendously reduces sample size and counting time in comparison with conventional counting method. In this paper the present and potential use of AMS in earth science together with its present limitation are discussed.
As AMS projects are in progress in China, we hope that this review would help geo-scientists realize that AMS thchnique may become a powerful tooi in their scientific research.
出处
《海洋地质与第四纪地质》
CAS
CSCD
北大核心
1989年第1期103-114,共12页
Marine Geology & Quaternary Geology
基金
国家自然科学基金资助重大项目
