
The SciencesOctober 1, 1984
Seismic Tomography
By analyzing many earthquake waves with this technique, it is now possible to map the earth's mantle in three dimensions. The maps throw light on the convective row that propels the crustal plates

Seismic Tomography
By analyzing many earthquake waves with this technique, it is now possible to map the earth's mantle in three dimensions. The maps throw light on the convective row that propels the crustal plates