5. The Evidence for the Theory is Irrefutable ==>
   5.1. Direct Evidence ==>
     5.1.1. Fossil Evidence ==>
       5.1.1.8. Age of Fossils * ==>
         5.1.1.8.2. Age of the Earth ==>
           5.1.1.8.2.2. Meteorite confirmation * ==>

5.1.1.8.2.2.1. Measuring the age of meteorites
*(One does not have to understand anything presented on this page.
The point is, there ARE people who DO understand this
AND it is FUNDAMENTAL to their discipline).

THE POINT!

Measuring the age of meteorites is a cross reference to measuring the age of earth's rocks.

Some measurements for the age of the Earth rest upon calculating an age for the solar system by dating objects which are expected to have formed with the planets but are not geologically active (and therefore cannot erase evidence of their formation), such as meteorites. Below is a table of radiometric ages derived from groups of meteorites:

TypeNumber DatedMethodAge (billions of years)Chondrites (CM, CV, H, L, LL, E)13Sm-Nd4.21 +/- 0.76Carbonaceous chondrites4Rb-Sr4.37 +/- 0.34Chondrites (undisturbed H, LL, E)38Rb-Sr4.50 +/- 0.02Chondrites (H, L, LL, E)50Rb-Sr4.43 +/- 0.04H Chondrites (undisturbed)17Rb-Sr4.52 +/- 0.04H Chondrites15Rb-Sr4.59 +/- 0.06L Chondrites (relatively undisturbed)6Rb-Sr4.44 +/- 0.12L Chondrites5Rb-Sr4.38 +/- 0.12LL Chondrites (undisturbed)13Rb-Sr4.49 +/- 0.02LL Chondrites10Rb-Sr4.46 +/- 0.06E Chondrites (undisturbed)8Rb-Sr4.51 +/- 0.04E Chondrites8Rb-Sr4.44 +/- 0.13Eucrites (polymict)23Rb-Sr4.53 +/- 0.19Eucrites11Rb-Sr4.44 +/- 0.30Eucrites13Lu-Hf4.57 +/- 0.19Diogenites5Rb-Sr4.45 +/- 0.18Iron (plus iron from St. Severin)8Re-Os4.57 +/- 0.21After Dalrymple (1991, p. 291); duplicate studies on identical meteorite types omitted.

Bottom Line... The age of the earth, as measured by determining the age of meteorites that have hit the earth is 4.8 Billion years +/- 100,000 years.

Some measurements for the age of the Earth rest upon calculating an age for the solar system by dating objects which are expected to have formed with the planets but are not geologically active (and therefore cannot erase evidence of their formation), such as meteorites. Below is a table of radiometric ages derived from groups of meteorites: