通常认为，构造变形是热传递对流和热液循环以及伴生矿床产出的必要条件。迄今为止，对海底热液成矿作用的勘探调查还主要集中于太平洋和大西洋的扩张洋脊附近，而对扩张速度缓慢的印度洋海脊的调查不多。直到１９８７年，印度洋上除少数低温热液矿床以外，还没有发现高温热液? It is generally accepted that tectonic deformation is a necessary condition for heat transfer convection and hydrothermal cycling and associated deposit production. To date, investigations into the hydrothermal mineralization of the seabed have also been concentrated in the vicinity of the expan- ding ridges on the Pacific and Atlantic Oceans, while few surveys have been conducted on the slow-expanding Indian Ocean ridges. Until 1987, except for a few low-temperature hydrothermal deposits in the Indian Ocean, have not found high temperature hydrothermal?