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
Turn Down for What said in an interview, "Turn Down for What" contains the lyrics of Lil Jon's powerful and iconic voice rapping "Fire up that loud, another round of shots" and "Turn down for what" throughout the song. It also contains bass and trap music elements that are original to Atlanta, GA, Lil Jon's hometown. "Turn Down for What" is written in the E Phrygian mode and is set in common time at a moderate tempo of 100 beats per minute. "Turn Down for What" entered the top 10 on "Billboard"s Dance/Electronic chart during the last week of December. In January 2014, the