磷灰石裂变径迹定年技术原理及地质演化过程的应用
Apatite Fission Track Dating Method and Its Application
祁翼1
作者信息
- 1. 中色紫金地质勘查(北京)有限责任公司,北京 100012
- 折叠
摘要
磷灰石裂变径迹因封闭温度低(60 ℃～120 ℃),能记录浅地表冷却过程,在地质领域得到广泛应用.通过总结前人研究资料,介绍磷灰石裂变径迹实验原理、实验数据处理与解释,重点阐述该方法在地质演化过程的应用,包括矿床剥露过程、造山带地质演化、盆地演化过程、古地貌研究及断层活动时间等.该方法是研究地质体低温热历史信息最有效方法之一,但目前仍存在测年过程受人为影响较大、不适合低U或年轻地质体测量、实验周期较长等缺点.因此,为更精确地约束地质体演化过程,仍需结合多种技术手段.
Abstract
the apatite fission track has been widely used in the geological field to record the cooling process of shallow surfaces due to its low annealing temperature(60 ℃～120 ℃).By summarizing previous researches,this article introduc-es the experimental principle of apatite fission track,the processing and interpretation of experimental data,and focuses on the application of this method in geological evolution processes,including the process of ore deposit exhumation,the geological evolution of orogenic belts,the basin evolution,the paleogeomorphology and the age of fault activity.Al-though this method is one of the most effective methods for studying the low-temperature thermal history information of geological bodies,there are still shortcomings in the dating process,such as the easily influenced by human factors,the unsuited measuring for low U or young geological bodies,and the longer experimental period.Therefore,in order to more accurately constrain the evolution process of geological bodies,multiple technical means still need to be combined.
关键词
低温热年代学/磷灰石裂变径迹/地质应用Key words
Low-temperature thermochronology/Apatite fission track/Geological applications引用本文复制引用
出版年
2024
NETL
NSTL
万方数据