Gary Wayne Kubiak (born August 15, 1961) is a former American football coach and player. He served as head coach for the NFL's Houston Texans from 2006 to 2013 and of the Denver Broncos in 2015 and 2016 before stepping down from the position on January 1, 2017, citing health reasons. He also had jobs as assistant coach at Texas A&M University and with the San Francisco 49ers and Denver Broncos.
Asthenosphere. Introduction. The asthenosphere is the layer of the Earth that lies below the lithosphere. It is a layer of solid rock that has so much pressure and heat the rocks can flow like a liquid. The rocks are less dense than the rocks in the lithosphere.
The asthenosphere is made up of mafic and ultramafic rocks. It has the same material as the upper lithosphere, but the material in the asthenosphere is in a plastic, viscous state and moves around much more readily than the material in the lithosphere.