SGER: A Novel Approach to Ar-Ar Stepped Heating: Application to Cooling Histories of Co-Existing Feldspar and Zircon

SGER：Ar-Ar 分级加热的新方法：在共存长石和锆石冷却历史中的应用

• 批准号: 0333409
• 负责人: Marty Grove
• 金额: $ 5.7万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-08-01 至 2005-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0333409&HistoricalAwards=false
• 关键词: SGER; Novel; Approach; Ar; Stepped

EAR-0333409GroveThis work will study the release of Argon from K-feldspar at temperatures below 200 degrees C to understand K-feldspar diffusion domains. This work is important because the 40Ar-39Ar dating technique using K-feldspar is amongst the most commonly used tools to understand the thermochronologic history of crustal rocks. This work involves heating experiments in a unique "light-bulb" furnace constructed for this work, and comparison of the K-feldspar thermochronologic information with (U+Th)-He data on zircons.

这项工作将研究在低于200摄氏度的温度下钾长石中氩的释放，以了解钾长石的扩散域。这项工作很重要，因为使用钾长石的40 Ar-39 Ar定年技术是了解地壳岩石热年代学历史最常用的工具之一。这项工作包括加热实验中的一个独特的“灯泡”炉建造这项工作，和比较的钾长石热年代学信息与（U+Th）-He数据的锆石。