Closely related to the history of sedimentary rocks are the age of the Earth as an astronomical body and the evolution of the planetary system. We shall see from the discussion of the following ...

The history of life on Earth is a tale of slow burns and sudden explosions, shaped by environmental upheavals and ...

The Earth and its moon are believed to have originated ... and it doesn’t account for the ages of some zircon minerals on its surface. A possible answer is that the moon underwent a “remelting ...

Second, it is possible to determine the numerical age for fossils or earth materials. Numerical ages estimate the date of a geological event and can sometimes reveal quite precisely when a fossil ...

Defined in the briefest fashion it is the geology of Lyell. Hutton had given us a “Theory of the Earth,” in its main outlines still faithful and true; and this Lyell spent his life in ...

Geochemist Clair Patterson sets the age of the Earth at 4.550 billion years, relying on ages of meteorites (including the Canyon Diablo meteorite, shown) that formed around the same time.