COLLABORATIVE RESEARCH: Paleomagnetic Constraints on the Ordovician Paleographic Setting of the British Isles, South of the Iapetus Suture

最近对Godwana和Laurentia的古地磁位置进行了修正，与大西洋地区古生代古地理的生物地理和古气候限制条件基本一致。然而，所涉及的一部分陆地现在变成了小的异域地体。位于Iapetus缝合线以南的不列颠群岛就是这样一个地体，目前的数据不足以追踪它的运动历史。这个与佛罗里达大学的工作人员（EAR88-16802）的合作提案将使用现代古磁方法检查该地块的样本。结果将有助于阐明该地体如何与环大西洋地区的古生代运动图像相匹配，以及它的原始亲和力。

The positions for Godwana and Laurentia have been recently revised paleomagnetically and are in broad agreement with avail- able biogeographic and paleoclimatic constraints on Paleozoic paleogeography in the Atlantic realm. However, a part of the land mass involved now occur as small allochthonous terranes. The British Isles, south of the Iapetus suture, is one such terrane, and present data is insufficient to track its movement history. This collaborative proposal with workers at University of Florida (EAR88-16802) will examine samples from this terrane using modern paleo-magnetic methods. Results should help clarify how this terrane fits into the paleozoic movement picture of the circum-Atlantic area and its original affinity.