A Continuous Laser Microprobe Extraction System for 40Ar-39Ar Geochronology

9522588邓肯 这笔赠款提供了34 650美元，作为购买用于40-Ar/39-Ar地质年代学的连续CO2激光微探针提取系统的部分费用。 萃取系统将使该实验室能够分析微克大小的样品，从而允许单晶40-Ar/39-Ar年龄测定和熔体和流体包裹体的分析。 这样一个系统将使这些PI的扩大他们的研究的时间和持续时间的洪水玄武岩火山活动，年龄测定最近爆发的洋中脊玄武岩（MORB的），月球年代学，矿物分离的年龄从洪水玄武岩和深海风扇和单晶火山灰年代学。 该实验室作为Ar/Ar地质年代学的区域设施，并为多样化的研究生和本科生社区提供分析支持。 ***

9522588 Duncan This grant provides $34,650 as partial support of the costs of acquiring a continuos CO2 laser microprobe extraction system for 40-Ar/39-Ar geochronology. The extraction system would enable this laboratory to analyze microgram sized samples thus allowing for single crystal 40-Ar/39-Ar age determinations and analyses of melt and fluid inclusions. Such a system would allow these PI's to expand their research on the timing and duration of flood basalt volcanism, age determination for recently erupted Mid Ocean Ridge Basalts (MORB's), lunar chronology, dating of mineral separates from flood basalts and deep-sea fans and single crystal tephrochronology. This laboratory serves as a regional facility for Ar/Ar geochronology and provides analytical support for a diverse graduate and undergraduate student community. ***