Integrated Kinematic,Geothermobarometric,and Isotopic Studies of the Yukon-Tanana Terrane: Constraints on Its Petrotectonic Evolution and Implications for Early....

育空-塔纳纳地体的综合运动学、地温气压和同位素研究：对其岩石构造演化的限制及其对早期的影响......

• 批准号: 8715911
• 负责人: Vicki Hansen
• 金额: $ 5万
• 依托单位: Southern Methodist University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-07-15 至 1989-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8715911&HistoricalAwards=false
• 关键词: Integrated; Kinematic; Geothermobarometric; Isotopic; Studies

The Yukon-Tanana terrane, an extensive metamorphic-plutonic assemblage, is exposed in east-central Alaska and southern Yukon, and forms the fundamental boundary between antochthonous strata of North American and outboard accreted terrane. This project will test a model of subduction-related strike-slip translation developed within the Teslin suture zone, Yukon by complementary kinematic, geothermobarometric, and isotopic and analyses of involved rocks. Results should apply to deeper parts of those subduction systems having significant strike-slip components.

育空-塔纳纳地体是发育于阿拉斯加中东部和育空地区南部的一个广泛的变质-深成组合，是北美下位地层与外吸积地体的基本分界线。该项目将通过对相关岩石的补充运动学、地温气压、同位素和分析，测试育空地区Teslin缝合带内与俯冲相关的走滑平移模型。结果应该适用于那些具有明显走滑成分的俯冲系统的较深部分。