CAJ | 학술논문

详细介绍了一种全新的磷灰石裂变径迹表观年龄测试分析方法---激光剥蚀-ICPMS法。通过新、老方法测试分析结果对比，认为两种方法所获得3种标准样品磷灰石裂变径迹表观年龄基本一致；测试分析的4块钻井碎屑岩样品表观年龄、单颗粒年龄及U含量的分布特征也基本一致。样品两组年龄均反映同一期构造抬升冷却事件。通过新、老方法测试分析流程对比认为，激光剥蚀-ICPMS法测定磷灰石裂变径迹表观年龄，省去热中子辐照、云母片外探测器蚀刻及诱发径迹统计等诸多程序，比传统的外探测器法步骤更为快捷、方便，缩短了样品测试分析的周期，降低了人为因素对测试结果的影响，更能确保样品测试结果的准确性和可再现性，有可能成为未来裂变径迹定年的主流实验方法。然而，目前激光剥蚀-ICPMS法裂变径迹定年在径迹蚀刻是否对磷灰石颗粒中238 U含量造成影响、激光剥蚀深度、磷灰石颗粒U含量不均匀性及与磷灰石性质相似的标准样品选取等方面仍然存在问题，需进一步加强研究。
상세개소료일충전신적린회석렬변경적표관년령측시분석방법---격광박식-ICPMS법。통과신、로방법측시분석결과대비，인위량충방법소획득3충표준양품린회석렬변경적표관년령기본일치；측시분석적4괴찬정쇄설암양품표관년령、단과립년령급U함량적분포특정야기본일치。양품량조년령균반영동일기구조태승냉각사건。통과신、로방법측시분석류정대비인위，격광박식-ICPMS법측정린회석렬변경적표관년령，성거열중자복조、운모편외탐측기식각급유발경적통계등제다정서，비전통적외탐측기법보취경위쾌첩、방편，축단료양품측시분석적주기，강저료인위인소대측시결과적영향，경능학보양품측시결과적준학성화가재현성，유가능성위미래렬변경적정년적주류실험방법。연이，목전격광박식-ICPMS법렬변경적정년재경적식각시부대린회석과립중238 U함량조성영향、격광박식심도、린회석과립U함량불균균성급여린회석성질상사적표준양품선취등방면잉연존재문제，수진일보가강연구。
In this paper ,a new method for apatite fission track dating using Laser-ICPMS is introduced in detail .The fis-sion track ages of three international standard samples determined by using the new method and the conventional external detector method are basically in consistency .The test results of four clastic rock core samples ,including apparent fission track ages ,single grain ages and U contents are also basically the same for the new and conventional methods .The two group of ages may reflect the same tectonic uplift cooling event .As it eliminates several steps such as thermal neutron ir-radiation ,mica ablation and induce fission rack accounting ,the new method is more rapid and convenient than the tradi-tional method ,can shorten the cycle of testing ,reduce the influence of human factors ,and improve accuracy and repro-ducibility of the analysis results .However ,the new method still has some uncertainties such as the influence of ablation on 238 U content ,depth of laser ablation ,the influence of uneven U content and the selection of standard samples with similar property with apatite .