International Cooperative Research on the mid-Oceanic Ridges

这个项目与InterRidge项目相对应，InterRidge项目是一项研究洋中脊的国际倡议。本项目经费主要用于岭研人员赴日本参加游船、研讨会、项目策划会议、社团会议等活动。另一部分用途是为研究巡航运输仪器。该项目的研究游船覆盖了全球海岭系统，包括胡安德富卡海岭、东太平洋隆起、中大西洋海岭、西南印度海岭、中印度海岭和西太平洋弧后盆地海岭。主要成果是在西南脊的研究中取得的。在这个项目中，在西南印度洋脊进行了五次研究巡航。进行了多箭头测深、深缆侧扫、重磁测量、海底地震仪测量、海底岩石取样等工作。这些数据集的编制清楚地显示了该脊独特的分割模式，地壳结构非均质性突出的超低扩张体系和岩浆活动集中。

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.