Experimental Development of a Geochronometer Based on ESR- Detected Radiation-Induced Defects in Quartz: Collaborative Investigation Between FSU and L-DGO

基于 ESR 检测石英辐射诱发缺陷的地质计时仪的实验开发：FSU 和 L-DGO 之间的合作研究

• 批准号: 9007776
• 负责人: Alan Zindler
• 金额: $ 2.5万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-03-01 至 1993-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9007776&HistoricalAwards=false
• 关键词: Experimental; Development; Geochronometer; Based; ESR

The principal investigator, in collaboration with Leroy Odom and Edwin Hilinski at Florida State University, will attempt to develop a quartz geochronometer and geothermometer. He will do so by examining the number of Schottky-Frenkel defects in natural quartz using electron spin resonance spectroscopy, then determining the age of the quartz via improved uranium-thorium dating techniques, thereby establishing the rate of accumulation of the defects. Through annealing experiments a study also will be made of the thermal stabilities and mean lives of the defects; this in turn could provide a basis for a geologically useful geochronometer. Since quartz is a common minerals, development of this tool could have wide application, and would be particularly useful for rocks in which other methods cannot be applied. The understanding of defects in quartz also will benefit the semiconductor industry.

首席研究员与勒罗伊·奥多姆合作， 佛罗里达州立大学的埃德温·希林斯基将试图 研制石英地质年代计和地质温度计。 他会做 所以通过检查自然界中的肖特基-弗伦克尔缺陷的数量， 石英使用电子自旋共振光谱，然后 改良铀钍法测定石英年龄 测年技术，从而确定积累率 的缺陷。 通过退火实验研究还将 由缺陷的热稳定性和平均寿命组成; 这反过来又可以为地质学上有用的 地质年代计 由于石英是一种常见的矿物， 这一工具可能有广泛的应用，并将 特别适用于其他方法无法使用的岩石 应用。 对石英中缺陷的理解也将 有利于半导体行业。