Petrological and Geochemical Investigation of Superfast Spreading Segments of the East Pacific Rise, 13-23 Degrees South

研究人员打算从东太平洋隆起的超高速扩张段中选择一组样品，获得矿物、玻璃和全岩石地球化学和玻璃同位素数据，以便继续研究超高速扩张时裂谷破坏的岩石学和地球化学过程；一些采样良好的轴向段及其相关的近脊海山的精细尺度时空变异性，构造表现不明显的分段边界变异性的过程，以及与裂谷和扩展裂谷相关的超快速扩张的硅熔岩的起源和演化。

The investigators intend to obtain mineral, glass and whole rock geochemical and glass isotopic data on a selected suite of samples from superfast spreading segments of the East Pacific Rise in order to continue their investigation of, the petrological and geochemical process involved in rift failure at superfast spreading; the fine-scale temporal and spatial variability of some well-sampled axial segments and associated near-ridge seamounts, the processes contributing to the variability across segment boundaries with little structural manifestation, and the origin and evolution of silicic lavas associated with devals and propagating rifts at superfast spreading.