Investigation of Reykjanes Ridge Evolution Near Iceland

摘要雷克雅内斯洋脊是全球重力和测深图上大洋中脊系统中最引人注目的部分之一，因为它的v形历时脊指向远离冰岛的地方。它显示了热点（冰岛）对任何洋中脊的最强影响，是斜展脊的典型例子。这个项目将测试关于v形脊起源的两种假设；冰岛羽流的脉动与脊跃。我们的目标是提供一个在过去18ma期间在海上和陆地上的板块边界几何形状的无缝历史。海洋地球物理数据将在从冰岛边缘到北纬62度现有数据的北部边界范围内收集。这项研究包括培训一名研究生，冰岛科学家将参加这次考察，并接受数据收集各方面的培训。它们还将提供与土地数据的关键联系。

0452132AbstractHeyAbstractThe Reykjanes Ridge is one of the most striking parts of the mid-ocean ridge system on global maps of gravity and bathymetry because of the V-shaped diachronos ridges pointing away from Iceland. It shows the strongest influence of a hotspot (Iceland) of any mid-ocean ridge and is the type example of an obliquely spreading ridge. This project will test two hypotheses for the origin of the V-shaped ridges; pulsing of the Iceland plume versus ridge jumps. The goal is to provide a seamless history of the plate boundary geometry both at sea and on land during the past 18 Ma. Marine geophysical data will be collected in the area from the Iceland margin to the northern boundary of the existing data at 62 degrees north.The study involves the training of a graduate student and Icelandic scientists will participate in the expedition and receive training in various aspects of data gathering. They will also provide a critical link to the land data.