Probing the foundation of the Mid-Atlantic Ridge by Cannat, M, Karson, J, Hurst, S, Lawrence, R, Jay Miller, D, Agar, S, Barling, J, Casey, J, Ross, K, Ceuleneer, G, Dilek, Y, Fletcher, J, Fujibayashi, N, Gaggero, L, Gee, J, Mutter, C, Rodway, K, Kelley, D, Kempton, P, Marchig, V, Niida, K, Stephens, C, Werner, C, Whitechurch, H