Crust (geology) the crust. The boundary between the crust and mantle is conventionally placed at the Mohorovičić discontinuity, a boundary defined by a contrast in seismic velocity. The crust of the Earth is of two distinctive types: Because both continental and oceanic crust are less dense than the mantle below, both types of crust "float" on the mantle. This is isostasy, and it's also one of the reasons continental crust is higher than oceanic: continental is less dense and so "floats" higher. As a result, water pools in above the oceanic crust, forming the oceans. The temperature of the crust increases with
Between the Earth & Sky an Explanation)." All songs composed by Luba. Between the Earth & Sky Between the Earth & Sky is a follow-up release to the breakout album "Secrets and Sins" by Canadian singer, Luba and her band. The album helped Luba win a second Juno Award for "Female Vocalist of the Year", and was also her first album to go platinum in Canada. Various musical artists appear on "Between the Earth & Sky", including a saxophone solo by jazz musician Kenny G on the hit single "How Many" (produced by Narada Michael Walden). Other popular singles on the album include "Strength In