Acquisition of a Mass Spectrometric System for K/Ar Dating by the 40Ar/39Ar Method

Broecker 9413834该奖项支持哥伦比亚大学建立“地质年代学实验室”，特别是使用K-Ar和AR39-Ar40测年技术进行测年。该实验室将以一个新的质谱学系统为基础，并将整合到拉蒙特-多尔蒂地球天文台现有的惰性气体实验室中。它将包括一个具有法拉第杯子和离子计数能力的全金属惰性气体质谱仪，以及一条带有电阻炉的气体提取线和用于批量和详细采样的激光系统。它将应用于广泛的应用，包括火成岩岩石学、地层学、构造地质学、地貌学和古海洋学，并将促进Lamont-Doherty的研究人员和其他机构的合作者之间的跨学科研究。该设施的一半资金将由哥伦比亚大学提供，其余资金由NSF通过学术研究基础设施计划提供。***

Broecker 9413834 This award supports the development of a "geochronology laboratory" at Columbia University, specifically to carry out dating using K-Ar and Ar39-Ar40 dating techniques. The laboratory will be based around a new mass spectrometric system, and will be integrated into the existing noble gas laboratory at Lamont-Doherty Earth Obsepvatory. It will include an all metal noble gas mass spectrometer with Faraday Cup and ion counting capability, as well as a gas extraction line with a resistance furnace and laser system for bulk and detailed sampling. It will be applied to a broad range of applications including igneous petrology, stratigraphy, structural geology, geomorphology and paleoceanography, and will promote interdisciplinary research among the researchers at Lamont-Doherty and collaborators at other institutions. Half of the funding for this facility will be provided by Columbia University, with the remainder provided by NSF through the Academic Research Infrastructure program. ***