GEOLOGY

Detailed explanation-1: -As the pressure increases (increasing depth of travel) the quantity (B+G) increases faster than Density. Therefore, with increasing depth we expect the velocity of the P wave to increase.

Detailed explanation-2: -P-wave velocity varies with the lithology, porosity, and bulk density of the material; state of stress, such as lithostatic pressure; and fabric or degree of fracturing.

Detailed explanation-3: -Examining the equation you can see that increased density corresponds with decreased velocity. In the mantle, increases with depth, but the numerator K+4/3 increases faster than the , so the net effect is an increase in velocity.

Detailed explanation-4: -density-how much mass the material contains in a unit of volume; the greater the density of the material, the slower the P-waves.

Detailed explanation-5: -P-waves are the fastest moving seismic wave. The velocity of the wave depends on the type of density of the material it is traveling through.