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HomeMy WebLinkAboutGMC Data Report No. 082K-Ar age determinations for four metabasalt samples from the lower part
of the Husky Oil NPRA Tunalik No. i well.
Received 5 April 1988
Geologic Materials Center Data Report 82
Total of I page in report
Lab Number Field Number Project Mineral
(Depth i n
feet).
(g)
x ,yE-,! x !OE-3
88030 17868 TUNALIK PL6 .343 .gig7
.34t
Hean = .342
88029 17877 TUNALIK PL6 2.100 .6969
Hean:
880296 t7877 TUNALIK PLG 2.100 ,6969
Nean = 2.095-)e'
88034 t7885 TUNALIK PLG .883
Hean: .883
n
2i.t744 -.'4.989,. 67.78 385.76 +/~ ~
~inimum Age
.,~,.--,, 2.9634 66.30 50.30 +t- !.Si
Ninimum Age
i5.4i36 2.9695 66.33 50.40 +/-- 1.Si
Nih!mum Age
24.9380 ii.3991 .,,,.,~'~4 ~'~ i86.25 +/- 5.59
Minimum Age
Note: RAO = radiogenic; Sigma: standard deviation.
Constants:
Lambda e + Lambda e' = 0.58! x iOE-tO/yr
Lambda B: 4.962 x iOE-tO/yr
40K / K total = t.{67 x tOE-4 mol/mol
These values are valid to 3 significant figures.
Analyses were undertaken in the University of Alaska - Fairbanks Rock.
Laboratory of the Geophysical Institute.
Dating
GMC Data Report 82 Page 1/1
