Insight from Contrasting Segments of the EPR on the Nature and Distribution of the Crustal Magma Sill and Construction of the Extrusive Layer

对比 EPR 片段对地壳岩浆床性质和分布以及喷出层构造的见解

• 批准号: 9811483
• 负责人: Suzanne Carbotte
• 金额: $ 13.33万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-09-01 至 2001-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9811483&HistoricalAwards=false
• 关键词: Insight; Contrasting; Segments; EPR; Nature

9811483 Carbotte This project will continue anaylsis of multichannel seismic data collected in 1995 along two contrasting segments of the East Pacific Rise at 16 degrees north. The data set is of very high quality and is suited for further study. Questions to be addressed include: How does the physical state of the magma lens vary with the tectonic and magmatic segmentation of the ridge? Are discrete magma lenses associated with the segmentation of the summit caldera? How does the layer 2A/2B transition zone evolve and what are the implications for the geological significance of this layer and for accretion processes?

9811483 Carbotte 该项目将继续分析 1995 年沿北纬 16 度东太平洋海隆两个对比部分收集的多道地震数据。 该数据集质量非常高，适合进一步研究。 需要解决的问题包括：岩浆透镜体的物理状态如何随着山脊的构造和岩浆分割而变化？ 离散的岩浆透镜体与山顶破火山口的分割有关吗？ 2A/2B 层过渡带如何演化？该层的地质意义和增生过程有何影响？