Modern geologists consider the age of the Earth to be around 4.54
billion years (4.54×109 years).[1] This age was determined by
combining the interpretations of oldest-known terrestrial minerals -
small crystals of zircon from the Jack Hills of Western Australia -
and astronomers' and planetologists' determinations of the age of the
solar system based in part on radiometric age dating of meteorite
material and lunar samples.
1 Age of the Earth. U.S. Geological Survey (1997). Retrieved on
2006-01-10.
2 England P., Molnar P., Richter P., 2007. John Perry's neglected
critique of Kelvin's age for the earth: A missed opportunity in
geodynamics. GSA Today v.17 (1), 4-9. doi: 10.1130/GSAT01701A.1
On Dec 21, 12:04 pm, Pah...@
gmail.com wrote: