THE MAXIMUM AGE OF THE ELEMENTS AND THE AGE OF THE EARTH'S CRUST
- 1 March 1953
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Physics
- Vol. 31 (3) , 402-418
- https://doi.org/10.1139/p53-039
Abstract
Estimates are given of a maximum time of formation of the elements of 5.5 billion years and of the time of formation of the earth's crust at 3.5 billion years. These estimates were based on the isotopic constitution of lead ores dated from isotopic analyses of radiogenic leads from uranium minerals. Methods of calculation are described.Experimental measurements of the isotopic constitution of lead from mass spectrograms of lead tetramethyl are reported with examples.Keywords
This publication has 5 references indexed in Scilit:
- Mass spectra of some organo-lead and organo-mercury compoundsJournal of Research of the National Bureau of Standards, 1951
- A Redetermination of the Relative Abundances of the Isotopes of Carbon, Nitrogen, Oxygen, Argon, and PotassiumPhysical Review B, 1950
- AN ESTIMATE OF THE AGE OF THE EARTHNature, 1946
- The Isotopic Constitution of Radiogenic Leads and the Measurement of Geological Time. IIPhysical Review B, 1939
- Variations in the Relative Abundances of the Isotopes of Common Lead from Various SourcesJournal of the American Chemical Society, 1938