10 Most Abundant Elements in the Earth's Crust
Rich deposits of thorium minerals are located in the United States 440000 tonnes Australia and India 300000 tonnes each and Canada 100000 tonnes. The Moon is Earths only natural satelliteTogether with Earth it forms the Earth-Moon satellite systemIt is about one-quarter of Earth in diameter comparable to the width of Australia. Ten Most Abundant Elements In The Earth S Crust O Oxygen Si Silicon Al Aluminum Fe Iron Ca Calcium Na Sodium K Pota Fe Iron Abundance Oxygen Pertaining to building is the generally accepted scientific theory that considers the Earths lithosphere to comprise a number of large tectonic plates which have been slowly moving since about 34 billion years ago. . The mantle is about 448 oxygen 215 silicon and 228 magnesium with iron aluminum calcium sodium and potassium. Its colour is usually green or black. More than 90 of the Earths crust is composed of silicate minerals making silicon the second most abundant element in ...