Structure of the Earth obducted onto the continental crust and preserved as ophiolite sequences. Many rocks now making up Earth's crust formed less than 100 million (1) years ago; however, the oldest known mineral grains are about 4.4 billion (4.4) years old, indicating that Earth has had a solid crust for at least 4.4 billion years. Earth's mantle extends to a depth of 2,890 km, making it the thickest layer of Earth. The mantle is divided into upper and lower mantle. The upper and lower mantle are separated by the transition zone. The lowest part of the mantle next to the core-mantle boundary is
The Sum of Its Parts 2014. The title directly refers to a quote recorded by Greek philosopher, Aristotle. The album received moderate reviews upon release, with The Irish Times garnering it 3 stars out of 5, claiming ""it’s precisely what you might expect from a Chicane album"". The Sum of Its Parts (The Whole is Greater Than) The Sum of Its Parts is the sixth studio album by British electronic music artist Chicane. It was released on 26 January 2015 by Modena Records and Armada Music. The album debuted at number 44 on the UK Albums Chart, selling 1,987 copies in its first week. On