Ridge Segmentation, Plate Boundary Architecture and Behaviorof Non-Rigid Discontinuities Along the MAR in the South Atlantic

这是一个绘制大西洋中脊部分的项目， 南大西洋，旨在回答基本的 问题和测试hypothese中央理解一个 南部为缓慢到中等扩展速率的脊系统 大西洋要解决的问题包括：1）什么是 南部大西洋中脊的分段几何学 第一和第二种的相对丰度是多少 序不连续性？2)分割几何如何 观察到沿着一个有代表性的长度的山脊相比， 南大西洋的早期分割特征， 一阶和二阶不连续性的分布第三章 与之相关的结构和运动学特征是什么 随着板块边界几何形状的变化， 二阶不连续4)什么是结构和 形态学特征与变形相关的 一阶间断到二阶间断， 当边界不再起作用时，偏移的年龄是多少 严格？5)与之相关的地貌构造特征是什么 随着二阶间断向三阶间断的演化 不连续性？6)断陷和非断陷的分布是什么？ 断裂脊段沿着MAR之间的22 S和34 S？

This is a project to map a section of the Mid-Atlantic Ridge in the South Atlantic and is designed to answer fundamental questions and to test hypothese central to understanding of a slow to intermediate spreading rate ridge system in the South Atlantic. The questions to be addreses include: 1) What is the segmentation geometry of the Mid-Atlantic Ridge in the South Atlantic and what is the relative abundance of first and second order discontinuities? 2) How does the segmentation geometry observed along a representative length of ridge compare with the early segmentation character of the South Atlantic in terms of the distribution of first and second order discontinuities? 3) What are the structual and kinematic characteristics associated with a change in plate boundary geometry and the creation of a second-order discontinuity? 4) What are the strutural and morphologic characteristics associated with the trnsfromation of a first-order discontinuity to a second-order discontinuity and what is the age of the offset when the boundary no longer behaves rigily? 5) What are the morphotectonic characteristics associated with evolution of a second-order discontinuity to a third-order discontinuity? 6) What is the distribution of rifted and non- rifted ridge segments along the MAR between 22S and 34S?