Collaborative Research: Kinematics and Geochronology of the Gold Hill Shear Zone: Implications for Accretion of the Peri-Gondwanan Carolina Zone in the Southern Appalachians

合作研究：金山剪切带的运动学和地质年代学：对南阿巴拉契亚山脉近冈瓦纳卡罗来纳带增生的影响

• 批准号: 0106091
• 负责人: Brent Miller
• 金额: $ 8.1万
• 依托单位: University of North Carolina at Chapel Hill
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-06-15 至 2004-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0106091&HistoricalAwards=false
• 关键词: Collaborative; Research; Kinematics; Geochronology; Gold

0106112 Hibbard0106050 Hames0106091 MillerThe timing and nature of accretion of the Carolina Zone to Laurentia is one of the more significant and least constrained tectonic problems in modern southern Appalachian geology. The original suture has been overprinted and obliterated by subsequent Alleghanian motion along the western margin of the Carolina zone, precluding direct investigation of the suture. The Gold Hill Shear Zone is a prominent feature in the western part of the Carolina Zone and may record features produced by the suturing event that have been preserved due to the distance of the shear zone back from the actual terrane margin. The project involves an integrated structural and geochronologic study of the Gold Hill Shear Zone in an attempt to understanding timing, kinematics and crustal affinities of the original suture and collision of the Carolina Zone with Laurentia. Results will help develop reconstruction of the Appalachians and their exotic terranes.

0106112 Hibbard 0106050 Hames 0106091 Miller卡罗莱纳带向劳伦蒂亚的增生的时间和性质是现代南阿巴拉契亚地质学中最重要和最不受约束的构造问题之一。 原来的缝合线已经被后来沿着卡罗莱纳带西缘的阿勒格尼运动覆盖和抹去，排除了对缝合线的直接调查。 金山剪切带是卡罗莱纳带西部的一个显著特征，可能记录了因剪切带远离实际的火山边缘而保存下来的火山事件所产生的特征。 该项目涉及对金山剪切带进行综合结构和地质年代学研究，试图了解卡罗莱纳带与劳伦蒂亚带的原始缝合线和碰撞的时间、运动学和地壳亲缘关系。 研究结果将有助于阿巴拉契亚山脉及其奇异地形的重建。