Lithosphere-Asthenosphere boundary Lithosphere-Asthenosphere boundary The Lithosphere-Asthenosphere boundary (LAB) represents a mechanical difference between layers in Earth’s inner structure. Earth’s inner structure can be described both chemically (crust, mantle, core) and mechanically. The Lithosphere-Asthenosphere boundary (referred to as the LAB by geophysicists) lies between Earth's cooler, rigid lithosphere and the warmer, ductile asthenosphere. The actual depth of the boundary is still a topic of debate and study, although it is known to vary according to the environment. The LAB is determined from the differences in the lithosphere and asthenosphere including, but not limited to, differences in grain size, chemical composition, thermal properties, and
The Name of the Band Is Cowboy Mouth "Classic Drummer", the crowd at the concert included: Ellen DeGeneres (Vance's sister), Portia de Rossi, David Steinberg, Hanson, and music producer Matthew Wilder (No Doubt, Christina Aguilera, Kelly Clarkson). Mark Bryan, the guitarist for Hootie and The Blowfish, makes an on stage appearance, joining the band on the song "I Can Tell". The Name of the Band Is Cowboy Mouth The Name of the Band Is Cowboy Mouth is a live concert by the band Cowboy Mouth released on DVD on November 20, 2007. It is the first DVD, and second video of the band, the first being 1996's 'Alive'