A SeaMARC II Investigation of the Mid-Atlantic Ridge

该项目是为了支持一项研究北纬24度至29度的大西洋中脊(MAR)构造的实地计划。主要工具是SeaMARC II，这些数据将得到重力和磁学数据的补充。将获得至少100公里内沿裂谷的轴向不连续性和地貌构造变化的连续覆盖。主要目的是了解沿着缓慢扩张中心的火山和构造活动的变化，抵消MAR的小型轴向不连续的性质，以及导致MAR分裂的地幔过程。这项拟议的研究代表着SeaMARC II首次在大西洋使用。这是一项重要的研究，因为它将允许使用SeaMARC II工具比较缓慢和快速扩展的海脊的形态和构造。

This project is to support a field program to study the tectonics of the Mid-Atlantic Ridge (MAR) from 24 to 29 degrees North latitude. The principal tool is SeaMARC II, and these data will be complemented by gravity and magnetics data. Continuous coverage of the axial discontinuities and the morphotectonic variations along the rift valley over a distance of at least 100 km will be obtained. The main objective is to understand the variations in volcanic and tectonic activity along a slow spreading center, the nature of small axial discontinuities that offset the MAR, and the mantle processes that lead to segmentation of the MAR. The proposed research represents the first use of SeaMARC II in the Atlantic. This is an important study because it will allow a comparison between the morphology and tectonics of slow and fast spreading ridges using the SeaMARC II tool.