Un-roofing of mantle at the ultra-slow Mid-Cayman Spreading Centre, Caribbean Sea: constraints from wide-angle data and Vp/Vs ratios

Ingo Grevemeyer1, Michaela Merz1, Anke Dannowski1, Cord A Papenberg1, Harm J Van Avendonk2, Nicholas W Hayman3 and Christine Peirce4, (1)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (2)University of Texas at Austin, Institute for Geophysics, Austin, TX, United States, (3)Institute for Geophysics, Austin, TX, United States, (4)University of Durham, Durham, United Kingdom