International Cooperative Research on the mid-Oceanic Ridges

该方案与国际大洋中脊方案相对应，后者是一项国际洋中脊研究倡议。该计划的资金主要用于脊研究人员在日本参加巡航，参加研讨会，计划规划会议和社会会议的旅行。另一部分用途是为研究航行运输仪器。该计划的研究人员参加的研究巡航涵盖全球洋脊系统，包括Juan de Fuca洋脊，东太平洋隆起，大西洋中部洋脊，西南印度洋洋脊，中印度洋洋脊和西太平洋弧后盆地洋脊。主要成果是在西南海岭的研究上。在该方案期间，在西南印度洋脊进行了五次研究航行。进行了多矢测深测量、深拖侧扫声纳测量、重力和磁力测量、海底地震仪测量和海底岩石取样。这些数据集的汇编清楚地显示了该脊独特的分段模式，具有显著不均匀性的地壳结构和强烈集中的岩浆活动的超低速扩张系统。

This program corresponds to the InterRidge program, an international initiative of mid-oceanic ridge studies. The funds of this program are mainly used for travels of ridge researchers in Japan for participating cruises, attending workshops, program planning meetings, and society meetings. The other part of usage is transportation of instruments for the research cruises. The research cruises that the researchers of this program participated cover the global ridge system including the Juan de Fuca Ridge, the East Pacific Rise, the Mid-Atlantic Ridge, the Southwestern Indian Ridge, the Central Indian Ridge, and the western Pacific back-arc basins ridges. The major achievements were done in the studies in the Southwestern Ridge. Five research cruises were executed at the Southwestern Indian Ridge during this program. Multinarrow bathymetric survey, deep-tow sidescan sonnar survey, gravity and magnetic measurements, ocean bottom seismometer measurements, and bottom rock sampling were done. The compilation of these data sets clearly shows the unique segmentation pattern of this ridge, the ultraslow spreading system with striking heterogeneity of crustal structure and intensively focused magmatism.