Timing and Nature of Terrane Accretion in the Northern Appalachians: A Multidisciplinary Approach

东缅因州是由大型断层约束的岩石构造 块，其中一些可能是关于 北美，然而，无论是外来的，也不是年龄的 这些地块的加积已经牢固确立。 的 该项目的主要目标是比较两个前志留纪 大片（克鲁瓦和米拉米奇）现在被断层分开， 志留纪-泥盆纪的覆盖层，以确定它们是外来的还是 形成于同一个海洋盆地，为了研究 分离断层，以确定加积的时间。 研究结果对古生界的重新评价具有一定的指导意义 北方新英格兰的大地构造

Eastern Maine is composed of large fault-bounded lithotectonic blocks, some of which may be exotic terranes with respect to North America, however neither the allochthoneity nor age of accretion of these blocks has been firmly established. The principal goals of this project are to compare two pre-Silurian tracts (St. Croix and Miramichi) now separated by faults and Siluro-Devonian cover, to establish whether they are exotic or were formed in the same ocean basin, and to study a possible terrane-separating fault to establish timing of accretion. Results will be applicable in reevaluation of the Paleozoic tectonics of northern New England.