Seismic Investigation and Research on Structures of Mid-Ocean Ridges

The global distributions and structure characteristics of mid-ocean ridges were introduced in this paper,including the classification of main mid-ocean ridges based on spreading rates,basic characteristics of mid-ocean ridges such as geomorphology features,the relationship between crust thickness and spreading rate,the magma chamber beneath the mid-ocean ridge as well as the interaction between the plume and the mid-ocean ridge.The applications and some important achievements of the ocean bottom seismometer(OBS) in surveys on the mid-ocean ridges were reviewed.Moreover,the principal technical scheme in our investigation on South West Indian Ridge,which is going to be fulfilled using OBS in the next year,is also briefly introduced.