Fig. 6: Interpretation of seismic reflections from the ice-shelf base at SI-Seis and JP-Seis.
From: Seawater softening of suture zones inhibits fracture propagation in Antarctic ice shelves
a Walk-away seismic reflection data showing first arrivals, P-wave reflection and P-S conversion from the ice-shelf base at SI-Seis, as used in our analyses. b Interpreted P-wave reflection from ice-shelf base at SI-Seis. c Interpreted P-wave reflection from ice-shelf base at JP-Seis. The base ice reflections at SI-Seis are readily identified and back shifted (see ‘Methods’), while those at JP-Seis are not and therefore represented by a best-fit hyperbola.
