Dictionary:Fig H-1
FIG. H-1. Half-width. (a) Gravity anomaly resulting from a point or line element (sphere or horizontal cylinder). Depth to center of sphere=1.305 half-width, depth to center of cylinder=half-width. (b) Gravity anomaly resulting from a thin semi-infinite slab (step or fault). Depth to center of the anomalous mass=half-width.