Recalibration of the Cenozoic Polarity Time Scale

新生代极性时间尺度的重新校准

• 批准号: 9314142
• 负责人: Douglas Wilson
• 金额: $ 11.54万
• 依托单位: University of California-Santa Barbara
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-01-15 至 1996-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9314142&HistoricalAwards=false
• 关键词: Recalibration; Cenozoic; Polarity; Time; Scale

Wilson 9314142 This project will refine the Cenozoic paleomagnetic lime scale to minimize noise and remove spurious synchroneities in plate-pair rate changes which are produced by the currently-accepted scheme. This will be accomplished by (I) using plate-pairs with faster rates, permitting more precise age estimates, for time intervals with independent evidence that no rate changes occurred; (2) noise will be removed by calculating rotation angles rather than average distances; (3) ages will be determined from multiple plate pairs. The result will be an improved time scale which will be widely used in geologic studies, both continental and marine.

该项目将改进新生代古磁石灰标度，以最大限度地减少噪声，并消除目前接受的方案产生的板对速率变化的虚假同步性。这将通过(I)使用速度更快的板对来实现，允许更精确的年龄估计，对于没有发生速率变化的独立证据的时间间隔；(2)通过计算旋转角度而不是平均距离来去除噪声；(3)年龄将由多个板对确定。结果将是一个改进的时间尺度，它将广泛用于大陆和海洋的地质研究。