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2
Discordance
2
Geological sample
2
Lead
2
Lead-206/Uranium-238 ratio
2
Lead-207/Lead-206 ratio
2
Optional event label
2
Rock type
2
Sample code/label
Thorium
2
Thorium/Uranium ratio
2
Uranium
2
206Pb/207Pb Lead-Lead
1
238U/206Pb Uranium-Lead
1
510
1
510tay
1
512
1
512tay
1
514
1
514tay
1
520
1
520tay
1
5562
1
5562tay
1
Age
1
Age, 206Pb/207Pb Lead-Lead
1
Age, 238U/206Pb Uranium-Lead
1
Age, comment
1
Age, dated
1
Age, dated standard deviation
1
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