摘要
将激光剥蚀微量采样技术(LA)与多接收电感耦合等离子体质谱仪(MC-ICP-MS)相结合,非常适合从微观角度研究物质的内在组成及分布特征,近年来在地球科学领域广泛应用。山东省地质科学研究院将Coherent GeoLasPro 193nm激光剥蚀系统与Thermo Scientific Neptune Plus型多接收电感耦合等离子体质谱仪(MC-ICP-MS)联用,建立了锆石微区原位U-Pb定年方法。对锆石标样91500、GJ-1和Plesovice进行了原位U-Pb年龄测定。实验结果表明,该方法测试结果与推荐值在误差范围内一致,验证了仪器的准确度、精密度和稳定性,测试方法流程体系的有效性。
The combination of laser ablation(LA) and multicollector-inductively coupled plasma-mass spectrometry(MC-ICP-MS) has been widely used in the field of geoscience in recent years. It is very suitable for studying the internal compositions and distributions of minerals in a micro perspective. Coherent GeoLasPro 193 nm LA system and the Thermo Scientific Neptune plus MC-ICP-MS have been combined together by Shandong Institute of Geological Sciences, and the high resolution in situ U-Pb zircon dating method has been established. According to this method, situ U-Pb age determination of zircon standard samples 91500, GJ-1 and plesOvice has been carried out. The experimental results show that the test results of this method are consistent with the recommended value within the error range, which verifies the accuracy, precision and stability of the instrument and the effectiveness of the test method flow system.
作者
舒磊
张晨西
李增胜
单伟
熊玉新
周长祥
李敏
王秀凤
SHU Lei;ZHANG Chenxi;LI Zengsheng;SHAN Wei;XIONG Yuxin;ZHOU Changxiang;LI Min;WANG Xiufeng(Shandong Institute of Geological Sciences, Key Laboratory of Gold Mineralization Processes and Resources Utilization Subordinated to the Ministry of Natural Resources, Shandong Key Laboratory of Geological Processes and Resource Utilization in Metallic Minerals, Shandong Ji'nan 250013, China)
出处
《山东国土资源》
2022年第1期31-36,共6页
Shandong Land and Resources
基金
国家自然科学基金面上项目“胶东金矿垂向迁移—沉淀的精细过程研究——以招远莱州成矿带为例”,编号:4187030119。
