MYSTERIES OF TERRA FIRMA
Powell focuses on three major breakthroughs in understanding. The first has to do with the age of the earth, which had been guessed at through such things as biblical genealogies and the poorly understood fossil record. Thanks to the development of tools to gauge isotopic dating and other indexes, the solar system and our own planet are known to be 4.5 billion years old. The second has to do with the understanding of plate tectonics, which explains what were mysteries of geomorphology, proposing a "motor" for geological processes. The third, far less widely known than the first two, has to do with the history of meteoritic collisions with the earth-collisions that may have put the moon in the sky.
MYSTERIES OF TERRA FIRMA
Assunto: GEOCIÊNCIAS
Editora: SIMON & SCHUSTER INC
ISBN: 9781416576785
EAN: 9781416576785
Ano edição: 2007
Número edição: 1
Número volume: 0
Páginas: 256
Acabamento: Brochura
Tamanho(cm): 16x23
Autor:
JAMES N. POWELL
