Lithosphere of these xenoliths have been investigated by many methods, including analyses of abundances of isotopes of osmium and rhenium. Such studies have confirmed that mantle lithospheres below some cratons have persisted for periods in excess of 3 billion years, despite the mantle flow that accompanies plate tectonics. Lithosphere A lithosphere ( ["lithos"] for "rocky", and ["sphaira"] for "sphere") is the rigid, outermost shell of a terrestrial-type planet, or natural satellite, that is defined by its rigid mechanical properties. On Earth, it is composed of the crust and the portion of the upper mantle that behaves elastically on time scales of
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