MRS and electrical prospection in the context of weathered peridotite rocks in the South of New Caledonia.

In November 2011 and July 2012 were conducted geophysical prospections in the southern part of New Caledonia. Both electrical tomography (ERT) and Magnetic Resonance Sounding (MRS) were performed to obtain a better understanding of the water storage and circulation. The geological context is the weathering profile of peridotite rock (Maurizot and Vende-Leclerc, 2009). We present a review of the various ERT and MRS responses observed in this context.