The Geological
Timescale Versus Radiometric Dating
By
Paul Nethercott
October 2014
The Ordovician Period
445 To 489 Million Years Ago
1. Lens with Sub-Baltic Shield,
Journal Of Petrology, 2004, Volume 45, Number 2, Pages 415-437
|
187Os/188Os |
187Os/188Os |
187Re/188Os |
187Re/188Os |
187Re/188Os |
187Re/188Os |
187Re/188Os |
|
-40,956 |
-7,436 |
34,000 |
4,900 |
-3,200 |
-6,000 |
-9,564 |
|
-27,584 |
-7,420 |
26,000 |
4,800 |
-3,200 |
-6,111 |
-9,700 |
|
-26,880 |
-7,273 |
23,000 |
4,600 |
-3,400 |
-6,160 |
-9,800 |
|
-23,852 |
-6,291 |
19,000 |
4,300 |
-3,500 |
-6,291 |
-10,000 |
|
-18,664 |
-6,160 |
17,000 |
3,500 |
-3,700 |
-6,700 |
-10,088 |
|
-18,173 |
-6,111 |
15,000 |
3,200 |
-3,738 |
-6,800 |
-10,235 |
|
-16,520 |
-5,816 |
13,000 |
2,000 |
-3,770 |
-6,900 |
-11,000 |
|
-16,471 |
-5,161 |
13,000 |
1,500 |
-3,967 |
-7,000 |
-11,000 |
|
-15,800 |
-4,703 |
11,000 |
1,400 |
-3,983 |
-7,273 |
-11,168 |
|
-14,638 |
-4,621 |
9,300 |
1,400 |
-4,100 |
-7,420 |
-12,000 |
|
-14,163 |
-4,229 |
8,100 |
1,205 |
-4,200 |
-7,436 |
-12,968 |
|
-12,968 |
-3,983 |
7,600 |
-10 |
-4,229 |
-7,584 |
-13,000 |
|
-11,168 |
-3,967 |
7,000 |
-20 |
-4,600 |
-8,100 |
-14,000 |
|
-10,235 |
-3,770 |
6,700 |
-317 |
-4,621 |
-8,680 |
-14,163 |
|
-10,088 |
-3,738 |
6,500 |
-700 |
-4,703 |
-8,800 |
-14,638 |
|
-9,564 |
-2,805 |
6,300 |
-1,102 |
-5,161 |
-9,000 |
-15,000 |
|
-9,433 |
-1,790 |
5,800 |
-1,400 |
-5,200 |
-9,000 |
-15,800 |
|
-9,270 |
-1,102 |
5,800 |
-1,790 |
-5,600 |
-9,100 |
-16,000 |
|
-8,680 |
-317 |
5,600 |
-2,300 |
-5,700 |
-9,270 |
-16,471 |
|
-7,584 |
|
5,400 |
-2,805 |
-5,816 |
-9,433 |
-16,520 |
2. North-Central Norwegian Caledonides
Geosphere, 2007, Volume 3, no. 6, p. 683-703,
http://geosphere.gsapubs.org/content/suppl/2009/02/18/4.5.829.DC1/10.1130_GES00166-S1.xls
|
207Pb/206Pb |
207Pb/206Pb |
207Pb/206Pb |
207Pb/206Pb |
|
5,603 |
4,965 |
4,962 |
4,960 |
|
4,998 |
4,965 |
4,962 |
4,960 |
|
4,972 |
4,965 |
4,962 |
4,960 |
|
4,971 |
4,965 |
4,962 |
4,960 |
|
4,969 |
4,964 |
4,962 |
4,960 |
|
4,968 |
4,964 |
4,962 |
4,959 |
|
4,968 |
4,964 |
4,962 |
4,959 |
|
4,968 |
4,964 |
4,962 |
4,959 |
|
4,967 |
4,964 |
4,962 |
4,959 |
|
4,967 |
4,964 |
4,962 |
4,959 |
|
4,967 |
4,964 |
4,962 |
4,959 |
|
4,966 |
4,964 |
4,961 |
4,959 |
|
4,966 |
4,964 |
4,961 |
4,958 |
|
4,966 |
4,964 |
4,961 |
4,958 |
|
4,966 |
4,964 |
4,961 |
4,958 |
|
4,966 |
4,964 |
4,961 |
4,958 |
|
4,966 |
4,963 |
4,960 |
4,957 |
|
4,966 |
4,963 |
4,960 |
4,957 |
|
4,966 |
4,963 |
4,960 |
4,952 |
|
4,966 |
4,963 |
4,960 |
|
|
4,966 |
4,963 |
4,960 |
|
|
4,965 |
4,963 |
4,960 |
|
3. The Peace River Shocked M Chondrite,
Geochemica Et Cosmochemica Acta, 1988, Volume 52, Pages 2487 - 2499
|
40Ar/39Ar Age |
40Ar/39Ar Age |
40Ar/39Ar Age |
40Ar/39Ar Age |
40Ar/39Ar Age |
|
190 |
422 |
950 |
500 |
510 |
|
347 |
434 |
1,060 |
520 |
515 |
|
408 |
456 |
1,120 |
530 |
555 |
|
447 |
469 |
2,000 |
540 |
560 |
|
463 |
518 |
2,780 |
550 |
580 |
|
467 |
518 |
3,240 |
550 |
630 |
|
503 |
552 |
3,260 |
560 |
665 |
|
534 |
579 |
3,390 |
560 |
670 |
|
543 |
661 |
3,680 |
560 |
700 |
|
753 |
702 |
3,760 |
580 |
700 |
|
889 |
714 |
4,020 |
590 |
720 |
|
1,175 |
830 |
5,270 |
600 |
760 |
|
1,470 |
917 |
6,130 |
600 |
775 |
|
1,984 |
1,173 |
|
600 |
810 |
|
2,088 |
1,270 |
|
620 |
830 |
|
2,138 |
1,576 |
|
635 |
895 |
|
2,175 |
1,741 |
|
660 |
995 |
|
2,395 |
1,808 |
|
710 |
1,900 |
|
2,489 |
1,810 |
|
720 |
1,935 |
|
2,568 |
2,035 |
|
725 |
2,465 |
|
2,589 |
2,228 |
|
755 |
3,650 |
|
2,770 |
2,488 |
|
780 |
5,100 |
|
2,960 |
2,786 |
|
810 |
5,225 |
|
3,176 |
5,006 |
|
830 |
5,260 |
|
|
|
|
850 |
5,425 |
|
|
|
|
920 |
5,860 |
|
|
|
|
1,070 |
6,440 |
|
|
|
|
1,185 |
7,100 |
|
|
|
|
1,230 |
|
|
|
|
|
1,590 |
|
|
|
|
|
2,515 |
|
4. U-Th-Pb Analysis Of Baddeleyites,
http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1243.pdf
|
206Pb/207Pb |
207Pb/235U |
206Pb/238U |
|
4,149 |
2,304 |
810 |
|
4,155 |
3,251 |
1,994 |
|
5,199 |
3,644 |
1,501 |
|
2,460 |
1,170 |
602 |
|
4,022 |
1,368 |
302 |
|
2,639 |
436 |
139 |
|
3,956 |
1,485 |
365 |
|
4,540 |
2,448 |
731 |
|
4,108 |
1,700 |
429 |
5. The Seve Nappe Complex of Jamtland,
Journal Of Petrology, 2004, Volume 45, Number 2, Pages 415-437
|
187Re/188Os |
187Re/188Os |
187Re/188Os |
187Re/188Os |
|
34,000 |
4,900 |
-4,100 |
-11,000 |
|
26,000 |
4,800 |
-4,200 |
-12,000 |
|
23,000 |
4,600 |
-4,600 |
-13,000 |
|
19,000 |
4,300 |
-5,200 |
-14,000 |
|
17,000 |
3,500 |
-5,600 |
-15,000 |
|
15,000 |
3,200 |
-5,700 |
-16,000 |
|
13,000 |
2,000 |
-6,000 |
-17,000 |
|
13,000 |
1,500 |
-6,700 |
-17,000 |
|
11,000 |
1,400 |
-6,800 |
-19,000 |
|
9,300 |
1,400 |
-6,900 |
-20,000 |
|
8,100 |
-10 |
-7,000 |
-20,000 |
|
7,600 |
-20 |
-8,100 |
-21,000 |
|
7,000 |
-700 |
-8,800 |
-22,000 |
|
6,700 |
-1,400 |
-9,000 |
-27,000 |
|
6,500 |
-2,300 |
-9,000 |
-31,000 |
|
6,300 |
-3,200 |
-9,100 |
-32,000 |
|
5,800 |
-3,200 |
-9,700 |
-38,000 |
|
5,800 |
-3,400 |
-9,800 |
-41,000 |
|
5,600 |
-3,500 |
-10,000 |
-58,000 |
|
5,400 |
-3,700 |
-11,000 |
|
6. Sr, Nd, Pb and Os Isotopes,
Journal Of Petrology, 2001, Volume 42, Number 7, Pages 1387-1400
|
87Rb/86Sr |
87Rb/86Sr |
87Rb/86Sr |
87Rb/86Sr |
|
7,834 |
1,181 |
460 |
240 |
|
2,742 |
961 |
393 |
192 |
|
1,334 |
878 |
357 |
96 |
|
1,284 |
851 |
279 |
-296 |
7. The Munchberg Massif, Southern Germany,
Earth and Planetary Science Letters, Volume 99, 1990, Pages 230-249
|
87Rb/86Sr |
207Pb/206Pb |
|
0.200 |
4,954 |
|
0.213 |
4,952 |
|
-0.602 |
4,952 |
|
0.278 |
4,954 |
|
0.189 |
4,952 |
|
0.151 |
4,952 |
|
0.270 |
4,953 |
|
0.949 |
4,952 |
|
4.958 |
4,952 |
|
0.260 |
4,953 |
|
0.148 |
4,951 |
|
-0.745 |
4,952 |
|
-0.302 |
4,953 |
|
-0.272 |
4,954 |
|
-3.845 |
4,952 |
|
-2.455 |
4,954 |
|
-16.072 |
4,953 |
|
-3.348 |
4,952 |
|
-2.088 |
|
|
-13.882 |
|
8. Geochemistry of Hornblende Gabbros,
International Geology Review, 2009, Volume 51, Number 4, Pages 345–373
|
207Pb/206Pb |
206Pb/238U |
207Pb/235U |
208Pb/232Th |
|
5,014 |
7,297 |
5,648 |
24,397 |
|
5,013 |
7,109 |
5,493 |
24,113 |
|
5,012 |
7,026 |
5,491 |
23,555 |
|
5,012 |
6,638 |
5,491 |
23,438 |
|
5,009 |
6,305 |
5,359 |
22,658 |
|
5,008 |
5,987 |
5,238 |
21,989 |
|
5,007 |
5,922 |
5,237 |
20,621 |
References
1. Lens with Sub-Baltic Shield, Journal Of Petrology, 2004, Volume 45, Number 2, Pages 415-437
2. Geosphere, 2007, Volume 3, no. 6, p. 683-703, http://geosphere.gsapubs.org/content/suppl/2009/02/18/4.5.829.DC1/10.1130_GES00166-S1.xls
3. The Peace River shocked M chondrite, Geochemica Et Cosmochemica Acta, 1988, Volume 52, Pages 2487 - 2499
4. U-Th-Pb Analysis Of Baddeleyites, http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1243.pdf
5. The Seve Nappe Complex of Jamtland, Journal Of Petrology, 2004, Volume 45, Number 2, Pages 415-437
6. Sr, Nd, Pb and Os Isotopes, Journal Of Petrology, 2001, Volume 42, Number 7, Pages 1387-1400
7. The Munchberg Massif, Southern Germany, Earth and Planetary Science Letters, Volume 99, 1990,
Pages 230-249
8. Geochemistry of Hornblende Gabbros, International Geology Review, 2009, Volume 51, Number 4, Pages 345–373