高校地质学报2023，Vol.29Issue(6)：924-933,10.DOI:10.16108/j.issn1006-7493.2022058
基于辐射损伤的磷灰石裂变径迹退火行为研究
Apatite Fission Track Annealing Behavior Based on the Effect of Radiation Damage
摘要
Abstract
The fundamental theory of the fission-track thermochronology has been based on the principle that temperature is the only factor of fission track annealing.However,whether the radiation damage can enhance the annealing or not remains in dispute.This work studies the relationship between radiation damage and the fission track annealing behavior by the apatite fission track dating of four granite samples from Lincang county in Yunnan province.The single grain fission track ages of the samples range from 71 Ma to 15 Ma.The confined track lengths of the samples range from 9 μm to 16 μm and the U concentrations of the samples range from 24 μg/g to 290 μg/g.The analytical results of the relationship between fission track age and length and U concentration show that the fission track age and length decrease wirh increasing U concentration.The relationship preliminarily indicates that the radiation damage could cause and enhance fission track annealing as another factor in addition to temperature.This observation provides evidence for studing fission track annealing behavior caused by radiation damage.关键词
辐射损伤/裂变径迹/退火/磷灰石/U含量Key words
radiation damage/fission track/annealing/apatite/uranium content分类
数理科学引用本文复制引用
冯磊,孙敏,冯鹏..基于辐射损伤的磷灰石裂变径迹退火行为研究[J].高校地质学报,2023,29(6):924-933,10.基金项目
国家自然科学基金项目(41673062)资助 （41673062）
