THE STRUCTURE OF MID-OCEAN RIDGES
THE STRUCTURE OF MID-OCEAN RIDGES
复制标题
大洋中脊的结构
DOI：
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
D. Toomey
中科院分区：
文献类型：
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作者：
S. Solomon;D. Toomey
本文综述了近年来有关南极洋脊结构的研究成果。本文评述了由高分辨率地震学获得的地壳脊轴结构的新观点，着重讨论了这种结构随扩展速率的变化以及在给定扩展速率下沿轴向的变化。本文研究了关于海脊下上地幔结构的最新结果，包括随海底年龄的变化、各向异性对地幔流动方向的指示、结构的长波长沿轴变化及其对地幔温度和成分横向不均匀性的影响。
Recent research results on the structure of midocean ridges are reviewed. The new view of ridge-axis crustal structure obtained from high-resolution seismology is reviewed, emphasizing the variation of that structure with spreading rate and along-axis at a given spreading rate. Recent results on upper mantle structure beneath ridges are examined, including variations with seafloor age, indications from anisotropy for directions of mantle flow, and long-wavelength along-axis variations in structure and their implications for lateral heterogeneity in mantle temperature and composition.