The Carthage-Colton Shear Zone, Grenville Orogen NY

近年来，特别是在年轻造山带和高构造水平上的研究表明，伸展构造形成于收缩期间，特别是紧接收缩之后。该项目将遵循东部沿海格伦维尔造山运动中类似的扩展迹象。迦太基-科尔顿剪切带是格伦维尔变质沉积带的最东端边界，保存了晚期伸展史的证据。结果不仅将澄清格伦维尔的阿迪朗达克历史，而且有望对造山演化的深部地壳过程的性质提供见解。

9627911 VanderPluijm Work in recent years, particularly in young orogens, and at high structural levels, has shown that extensional structures form during and especially immediately following contraction. This project will follow indications that extension was similarly involved in the Grenville orogeny of the eastern seaboard. The Carthage-Colton shear zone marks the easternmost boundary of the Grenville Metasedimentary belt and preserves evidence of the late-stage extensional history. Results will not only clarify Grenville history of the Adirondacks but are expected to offer insights into the nature of deep-crustal processes doing orogenic evolution.