Integrating Thermal Modeling and Thermochronology to Study Exhumation in Mountain Belts

整合热模拟和热年代学来研究山地折返

• 批准号: 9805073
• 负责人: David Chapman
• 金额: $ 17万
• 依托单位: University of Utah
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-08-01 至 2001-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9805073&HistoricalAwards=false
• 关键词: Integrating; Thermal; Modeling; Thermochronology; Study

9805073 Armstrong Thermochronologic data from a number of techniques has the ability of defining the times given rock samples went through a set of mineral closure temperatures. These data, with a number of assumptions, are used to interpret parameters such as uplift rates, tilting and erosion. However, many of these interpretations are controversial due to ambiguities in the assumptions used in the inversion. This project will approach this problem by developing a detailed thermal model to simulate exhumation across active normal faults, that will produce temperature-time paths for rocks at actual sample sites in the Wasatch Mountains of Utah. Results should indicate how transient, non-horizontal closure temperature isotherms should be used to interpret thermochronologic data. A successful outcome should produce rules for improved interpretation of fission track and other thermochronologic data.

小行星9805073 来自多种技术的热年代学数据能够确定给定岩石样品经历一组矿物闭合温度的时间。 这些数据，加上一些假设，被用来解释参数，如隆起率，倾斜和侵蚀。 然而，许多这些解释是有争议的，由于在反演中使用的假设含糊不清。 该项目将通过开发一个详细的热模型来模拟活动正断层的折返过程，从而解决这个问题，该模型将为犹他州瓦萨奇山脉实际样品点的岩石产生温度-时间路径。 结果应表明如何瞬态，非水平闭合温度等温线应用来解释热年代学数据。 一个成功的结果应该产生规则，改进裂变径迹和其他热年代学数据的解释。