The Geological
Timescale Versus Radiometric Dating
By
Paul Nethercott
October 2014
The Imbrian Period
4,100 To 4,300 Million Years Ago
1. Siderophile Element Constraints,
Geochimica et Cosmochimica Acta, Volume 77 (2012) Pages 135–156
|
187Os/188Os |
187Os/188Os |
187Os/188Os |
187Os/188Os |
|
-2,625 |
-1,626 |
-562 |
-366 |
|
-2,625 |
-1,135 |
-562 |
-361 |
|
-2,608 |
-1,004 |
-562 |
-337 |
|
-2,608 |
-1,004 |
-497 |
-333 |
|
-2,592 |
-1,004 |
-481 |
-317 |
|
-2,445 |
-1,004 |
-481 |
-300 |
|
-2,395 |
-988 |
-464 |
-284 |
|
-2,379 |
-988 |
-448 |
-284 |
|
-2,363 |
-972 |
-448 |
-268 |
|
-2,297 |
-955 |
-431 |
-251 |
|
-2,297 |
-955 |
-431 |
-251 |
|
-2,281 |
-873 |
-415 |
-219 |
|
-2,084 |
-857 |
-415 |
-202 |
|
-1,970 |
-841 |
-415 |
-199 |
|
-1,937 |
-841 |
-415 |
-186 |
|
-1,855 |
-808 |
-415 |
-186 |
|
-1,823 |
-791 |
-415 |
-161 |
|
-1,806 |
-759 |
-399 |
-130 |
|
-1,806 |
-628 |
-382 |
-129 |
|
-1,757 |
-628 |
-366 |
-104 |
2. Three Apollo 14 Basalts,
Earth And Planetary Science Letters, 1972, Volume 14, Pages 281 - 304.
|
Pb207/Pb206 |
Pb206/U238 |
Pb207/U235 |
Pb208/Th232 |
|
5,650 |
10,280 |
6,540 |
28,140 |
|
5,580 |
9,210 |
6,430 |
24,920 |
|
5,430 |
9,080 |
6,390 |
23,500 |
|
5,330 |
8,970 |
5,760 |
11,230 |
|
5,310 |
8,730 |
5,740 |
10,790 |
|
5,280 |
7,150 |
5,710 |
10,340 |
|
5,110 |
6,980 |
5,670 |
9,010 |
|
5,100 |
6,810 |
5,650 |
8,890 |
|
5,050 |
5,620 |
5,180 |
5,500 |
|
5,020 |
5,600 |
5,180 |
5,490 |
|
5,010 |
5,550 |
5,170 |
5,480 |
|
5,010 |
5,500 |
5,110 |
5,410 |
|
4,970 |
5,440 |
5,100 |
5,410 |
|
4,970 |
5,390 |
5,090 |
5,350 |
|
4,960 |
5,150 |
4,920 |
4,970 |
|
4,840 |
5,100 |
4,910 |
4,910 |
|
4,830 |
5,060 |
4,900 |
4,870 |
|
4,830 |
|
|
4,800 |
|
4,800 |
|
|
|
|
4,800 |
|
|
|
3. Ar diffusion Properties, Meteorites,
Geochemica Et Cosmochemica Acta, 1980, Volume 44, Pages 1667 - 1682
|
Wellman |
Wickenburg |
Shaw |
Louisville |
Arapahoe |
Farmington |
Lubbock |
Orvinio |
|
5,200 |
3,005 |
5,150 |
5,500 |
9,710 |
3,700 |
9,400 |
8,780 |
|
4,569 |
2,840 |
4,586 |
2,210 |
4,362 |
1,435 |
5,820 |
4,790 |
|
4,415 |
2,710 |
4,548 |
1,450 |
4,330 |
1,005 |
3,070 |
2,170 |
|
4,342 |
2,173 |
4,434 |
950 |
3,970 |
811 |
2,511 |
2,106 |
|
4,309 |
1,707 |
4,380 |
747 |
3,394 |
766 |
2,495 |
2,050 |
|
4,301 |
1,499 |
4,313 |
668 |
3,353 |
731 |
2,342 |
1,903 |
|
4,295 |
1,284 |
4,311 |
662 |
3,220 |
702 |
2,305 |
1,890 |
|
4,273 |
1,160 |
4,295 |
616 |
2,971 |
647 |
2,299 |
1,844 |
|
4,244 |
783 |
4,294 |
613 |
1,982 |
636 |
2,184 |
1,829 |
|
4,232 |
774 |
4,294 |
566 |
1,134 |
618 |
1,977 |
1,554 |
|
4,220 |
731 |
4,278 |
550 |
961 |
548 |
1,507 |
1,471 |
|
4,143 |
653 |
4,273 |
520 |
890 |
537 |
1,412 |
1,243 |
|
4,139 |
629 |
4,273 |
516 |
|
511 |
1,407 |
916 |
|
3,737 |
568 |
4,266 |
510 |
|
511 |
1,070 |
879 |
|
|
|
4,261 |
501 |
|
|
990 |
764 |
|
|
|
4,257 |
501 |
|
|
953 |
|
|
|
|
4,170 |
|
|
|
120 |
|
References
1. Siderophile element constraints, Geochimica et Cosmochimica Acta, Volume 77 (2012) Pages 135–156
2. Three Apollo 14 Basalts, Earth And Planetary Science Letters, 1972, Volume 14, Pages 281 - 304.
3. Ar diffusion properties, Meteorites, Geochemica Et Cosmochemica Acta, 1980, Volume 44, Pages 1667 - 1682