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 *
*(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!

Meteorites provide excellent confirmation of the age of the earth.

Here's why...

Most of the other 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:

Type Number Dated Method Age (billions of years)

Chondrites (CM, CV, H, L, LL, E) 13 Sm-Nd 4.21 +/- 0.76

Carbonaceous chondrites 4 Rb-Sr 4.37 +/- 0.34

Chondrites (undisturbed H, LL, E) 38 Rb-Sr 4.50 +/- 0.02

Chondrites (H, L, LL, E) 50 Rb-Sr 4.43 +/- 0.04

H Chondrites (undisturbed) 17 Rb-Sr 4.52 +/- 0.04

H Chondrites 15 Rb-Sr 4.59 +/- 0.06

L Chondrites (relatively undisturbed) 6 Rb-Sr 4.44 +/- 0.12

L Chondrites 5 Rb-Sr 4.38 +/- 0.12

LL Chondrites (undisturbed) 13 Rb-Sr 4.49 +/- 0.02

LL Chondrites 10 Rb-Sr 4.46 +/- 0.06

E Chondrites (undisturbed) 8 Rb-Sr 4.51 +/- 0.04

E Chondrites 8 Rb-Sr 4.44 +/- 0.13

Eucrites (polymict) 23 Rb-Sr 4.53 +/- 0.19

Eucrites 11 Rb-Sr 4.44 +/- 0.30

Eucrites 13 Lu-Hf 4.57 +/- 0.19

Diogenites 5 Rb-Sr 4.45 +/- 0.18

Iron (plus iron from St. Severin) 8 Re-Os 4.57 +/- 0.21

As shown in the table, there is excellent agreement on about 4.5 billion years, between several meteorites and by several different dating methods.

Further, the oldest age determinations of individual meteorites generally give concordant ages by multiple radiometric means, or multiple tests across different samples. For example:

Meteorite Dated Method Age (billions of years)

Allende whole rock Ar-Ar 4.52 +/- 0.02

whole rock Ar-Ar 4.53 +/- 0.02

whole rock Ar-Ar 4.48 +/- 0.02

whole rock Ar-Ar 4.55 +/- 0.03

whole rock Ar-Ar 4.55 +/- 0.03

whole rock Ar-Ar 4.57 +/- 0.03

whole rock Ar-Ar 4.50 +/- 0.02

whole rock Ar-Ar 4.56 +/- 0.05

Guarena whole rock Ar-Ar 4.44 +/- 0.06

13 samples Rb-Sr 4.46 +/- 0.08

Shaw whole rock Ar-Ar 4.43 +/- 0.06

whole rock Ar-Ar 4.40 +/- 0.06

whole rock Ar-Ar 4.29 +/- 0.06

Olivenza 18 samples Rb-Sr 4.53 +/- 0.16

whole rock Ar-Ar 4.49 +/- 0.06

Saint Severin 4 samples Sm-Nd 4.55 +/- 0.33

10 samples Rb-Sr 4.51 +/- 0.15

whole rock Ar-Ar 4.43 +/- 0.04

whole rock Ar-Ar 4.38 +/- 0.04

whole rock Ar-Ar 4.42 +/- 0.04

Indarch 9 samples Rb-Sr 4.46 +/- 0.08

12 samples Rb-Sr 4.39 +/- 0.04

Juvinas 5 samples Sm-Nd 4.56 +/- 0.08

5 samples Rb-Sr 4.50 +/- 0.07

Moama 3 samples Sm-Nd 4.46 +/- 0.03

4 samples Sm-Nd 4.52 +/- 0.05

Y-75011 9 samples Rb-Sr 4.50 +/- 0.05

7 samples Sm-Nd 4.52 +/- 0.16

5 samples Rb-Sr 4.46 +/- 0.06

4 samples Sm-Nd 4.52 +/- 0.33

Angra dos Reis 7 samples Sm-Nd 4.55 +/- 0.04

3 samples Sm-Nd 4.56 +/- 0.04

Mundrabrilla silicates Ar-Ar 4.50 +/- 0.06

silicates Ar-Ar 4.57 +/- 0.06

olivine Ar-Ar 4.54 +/- 0.04

plagioclase Ar-Ar 4.50 +/- 0.04

Weekeroo Station 4 samples Rb-Sr 4.39 +/- 0.07

silicates Ar-Ar 4.54 +/- 0.03