Abundance of the chemical elements in the Sun and outer planets is similar to that in the universe. Due to solar heating, the elements of Earth and the inner rocky planets of the Solar System have undergone an additional depletion of volatile hydrogen, helium, neon, nitrogen, and carbon (which volatilizes as methane). The crust, mantle, and core of the Earth show evidence of chemical segregation plus some sequestration by density. Lighter silicates of aluminum are found in the crust, with more magnesium silicate in the mantle, while metallic iron and nickel compose the core. The abundance of elements in specialized environments, such as atmospheres, or
Journey to the Centre of the Earth (album) but the designer refused to reduce the package to a standard sleeve. Upon its arrival at A&M Records, the finished album was poorly received among management; they refused to sell it. However, as Wakeman was under contract with A&M in the United States, a cassette was sent to co-founder Jerry Moss in California, who subsequently agreed to release the record. According to Wakeman, the album received 50,000 advanced orders. Released on 3 May 1974, "Journey to the Centre of the Earth" topped the UK Albums Chart for one week, the first album from A&M to do so. It peaked at