High Resolution Models of Tectonics and Magmatism at Mid-Ocean Ridges

目前的大洋中脊扩张过程模型无法解释一些主要特征，如狭窄的轴向高压。 这种失败源于没有考虑近轴区域的岩浆加载，以及在数值模型中没有以足够的空间和时间分辨率关注该区域。 新的概念模型，狭窄的高和轴向高峰槽建议涉及定期崩溃薄轴岩石圈的重量下的岩浆负荷。 新的模型预测将测试对数据的断层模式与狭窄的轴向高点，轴向峰槽的分布，年龄分布的熔岩流作为一个函数的轴的形状，和旋转的程度的部分快速扩展的地壳看到的构造窗口。

Present models of mid-ocean ridge spreading processes fail to explain some major features, such as narrow axial highs. This failure stems from not considering magmatic loading of the near axis region and form not focusing on that region with sufficient spatial and temporal resolution in numerical models. New conceptual models for narrow high and axial summit troughs are suggested involving periodic collapse of thin axial lithosphere under the weight of magmatic loads. New model predictions will be tested against data on fault patterns associated with narrow axial highs, the distribution of axial summit troughs, the age distribution of lava flows as a function of shape of the axis, and the degree of rotation of sections of fast-spreading crust seen in tectonic windows.