Strain Rates, Patterns, and Partitioning during Continental Transtension

大陆变形过程中的应变率、模式和分区

• 批准号: 0001044
• 负责人: Douglas Burbank
• 金额: $ 15.84万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-06-01 至 2001-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0001044&HistoricalAwards=false
• 关键词: Strain; Rates; Patterns; Partitioning; during

Burbank0001044A long-standing structural problem focuses on the modes of accommodation of the stresses that arise due to oblique motion between crustal blocks. The project will test several hypotheses regarding the nature of continental transtension and a transition from extension to transtension, using the northern Owens Valley, White-Inyo Mountain and Fish Lake Valley, parts of the Eastern California Shear Zone. This study promises to bring detailed U-Th/He, fission-track and ArAr chronologic perspective to bear on the nature of continental transtension. Results are important for reconstruction of the stress field history of southern California from Miocene times to recent, and should be helpful in understanding transtensional behavior elsewhere.

Burbank0001044一个长期存在的结构问题集中于因地壳块之间的倾斜运动而产生的应力的调节模式。 该项目将利用北欧文斯谷、怀特伊尼奥山和菲什湖谷以及东加州剪切带的部分地区，测试有关大陆转变性质以及从扩张到转变的转变的几个假设。 这项研究有望带来详细的 U-Th/He、裂变径迹和 ArAr 年代学视角来研究大陆转变的本质。 结果对于重建南加州从中新世到近代的应力场历史很重要，并且应该有助于理解其他地方的转张行为。