Proposal for a Planning Workshop: Deformation Rates at 10 to 10 Million Years: An Active Trust Belt in the Central Andes

规划研讨会提案：10 至 1000 万年的变形率：安第斯山脉中部的活跃信任带

• 批准号: 0430760
• 负责人: Richard Allmendinger
• 金额: --
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-06-01 至 2005-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0430760&HistoricalAwards=false
• 关键词: Proposal; Planning; Workshop; Deformation; Rates

0430760AllmendingerOne of the most profound questions in continental geodynamics is how to relate deformation of the earth at time scales of 10-6 years during a coseismic slip event to mountain building processes at the scale of millions to tens of millions of years. How does the instantaneous deformation integrate over 6 orders of magnitude (or more) of temporal sampling windows to produce the orogens we see today? As many geoscientists these days routinely extrapolate GPS measured rates to mountain building time scales, it is becoming increasingly important to understand well the pitfalls of such practices.Great mountain belts are made by thrust systems which, to date, have not been studied as intensively as strike-slip dominated systems or extensional regimes such as the Basin and Range. Thanks to extensive previous work as well as a relatively simple plate setting, the Precordillera of western Argentina is one of the best places in the world to study true mountain building processes at a range of temporal scales from decades to millions of years. This award provides funds for a workshop to bring together experts on this region as well as experts in techniques necessary to complete our understanding of deformation partitioning at different temporal sampling windows. The objective of the workshop is to identify clearly the types of studies in this region that will further the understanding of the links between deformations at different time scales. The attendees will include experts on InSar and GPS geodesy, earthquake seismology, paleoseismology and tectonic geomorphology, and structural geology and stratigraphy.

大陆地球动力学中最深刻的问题之一是如何将同震滑动事件期间10-6年时间尺度上的地球变形与数百万至数千万年尺度上的造山过程联系起来。 瞬时变形是如何在6个数量级（或更多）的时间采样窗口中积分，以产生我们今天看到的造山带的？ 由于许多地球科学家这些天经常外推GPS测量速率的造山时间尺度，它是越来越重要的是要了解这种做法的陷阱。巨大的山脉带是由逆冲系统，到目前为止，还没有深入研究的走滑为主的系统或伸展制度，如盆地和山脉。 由于大量的前期工作以及相对简单的板块背景，阿根廷西部的前科迪勒拉是世界上研究数十年至数百万年时间尺度上真正的造山过程的最佳地点之一。 该奖项为一个研讨会提供资金，该研讨会将该地区的专家以及完成我们对不同时间采样窗口变形分区的理解所需技术的专家聚集在一起。 研讨会的目的是明确确定该地区的研究类型，以进一步了解不同时间尺度的变形之间的联系。 与会者将包括干涉合成孔径雷达和GPS大地测量学、地震学、古地震学和构造地貌学以及构造地质学和地层学专家。