The Planets Their Origin and Development Harold C. Urey
Urey, Harold C. / Sloan, Sam
This is a study based on observation rather than mathematical theory in which an attempt is made to discover facts and relationships that give evidence about the course of solar evolution. The author's principle conclusions are that the earth and other territorial planets were formed at much lower temperatures than has generally been supposed, and that a more uniform distribution of iron throughout the silicate phases of the Earth existed in t...