The exact geological significance of the Conrad discontinuity is still not clarified.

He first deduced the continental crust transition structure what is now named the Conrad discontinuity.

This line is called the Conrad discontinuity.)

It is estimated that sima starts about 11 km below the Conrad discontinuity (a second order discontinuity).

The Conrad discontinuity has been proposed as the boundary, but little is known about it, and it doesn't seem to match the point of geochemical change.

The Conrad discontinuity corresponds to the sub-horizontal boundary in continental crust at which the seismic wave velocity increases in a discontinuous way.

The Conrad discontinuity (named after the seismologist Victor Conrad) is considered to be the border between the upper continental crust and the lower one.

Therefore, the seismologists of that time considered that the Conrad discontinuity should correspond to a sharply defined contact between the chemically distinct two layers, SiAl and SiMa.

A seismic boundary, known as the Conrad discontinuity, underlies some continental regions at a depth of between 10 and 30km and this divides the continental crust into upper and lower layers.

During his analyses of two earthquakes that occurred in Austria in 1923 and 1927 he discovered what is today known as the Conrad discontinuity, considered to be the border between the upper and the lower continental crust.

Because of the change in velocity of seismic waves it is believed that on continents at a certain depth sial becomes close in its physical properties to sima, and the dividing line is called the Conrad discontinuity.