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

0106112 Hibbard0106050 Hames0106091 MillerThe时机和吸积的性质卡区Laurentia是更重要的一个,至少限制在阿巴拉契亚山脉南部现代地质构造问题。原始的缝合线已被卡罗莱纳带西缘的后续阿勒卡尼运动覆盖和抹杀，因此无法对缝合线进行直接研究。金山剪切带是卡罗莱纳带西部的一个突出特征，可能记录了由于剪切带距离实际地体边缘较远而被保存下来的缝合事件所产生的特征。该项目包括对金山剪切带进行综合的构造和地质年代学研究，试图了解卡罗莱纳带与劳伦提亚带的原始缝合带和碰撞的时间、运动学和地壳亲和力。研究结果将有助于重建阿巴拉契亚山脉及其奇特地形。

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.