Plume-Ridge Interaction to the North of the Iceland Plume: Kolbeinsey Ridge Iceland Seismic Experiment (KRISE)

这是美国、冰岛、挪威和日本科学家的合作项目。 该项目的目的是限制冰岛北部沿着科尔拜因西海岭的地壳厚度变化。 将沿沿着两条地震折射剖面测量地壳厚度-一条是沿沿着215公里长的南科尔拜因塞海岭，从Tjornes断裂带向北延伸至68度偏移，另一条是沿轴剖面从沿轴剖面的北方端向东延伸至10 Ma的地壳。 这两个配置文件将允许的距离依赖性的熔融通量在脊在200-400公里的临界范围内，从羽流中心，不对称的羽流影响的扩散中心的北部和南部，和时间变化的羽流影响脊在过去的10马。

This is a cooperative project among US, Icelandic, Norwegian, and Japanese scientists. The purpose of the project is to constrain crustal thickness variations to the north of Iceland, along the Kolbeinsey Ridge. Crustal thickness will be measured along two seismic refraction profiles - one along 215 km of the southern Kolbeinsey Ridge from the Tjornes fracture zone northward to the 68 degree offset, and another cross-axis profile extending east from the northern end of the along-axis profile to 10 Ma-old crust. These two profiles will allow the determination of the distance dependence of melt flux at the ridge in the critical range of 200-400 km from the plume center, the asymmetry of the plume influence on the spreading centers to the north and south, and the temporal variability of the plume influence on the ridge over the past 10 Ma.