Lithosphere for silicate rocks, and formula_4 is the age of the given part of the lithosphere. The age is often equal to L/V, where L is the distance from the spreading centre of mid-oceanic ridge, and V is velocity of the lithospheric plate. Oceanic lithosphere is less dense than asthenosphere for a few tens of millions of years but after this becomes increasingly denser than asthenosphere. This is because the chemically differentiated oceanic crust is lighter than asthenosphere, but thermal contraction of the mantle lithosphere makes it more dense than the asthenosphere. The gravitational instability of mature oceanic lithosphere has the
Fools Gold/What the World Is Waiting For Fools Gold/What the World Is Waiting For "Fools Gold" and "What the World Is Waiting For" are two songs by British rock band the Stone Roses. They were released together as a double A-side single on 13 November 1989 through Silvertone Records. "Fools Gold" would go on to appear on certain non-UK versions of their self-titled debut studio album (1989). "Fools Gold" became the band's biggest commercial hit at the time. It was their first single to reach the top ten of the UK Singles Chart and stayed in the top-75 for fourteen weeks, peaking at number eight. "Fools Gold"