This sample belongs to: Brandon Keough

Sample Unique Identifier = IECAR000I (Detail)
Aliquot Unique Identifier = 10.58052/IECAR000I (Detail)
Aliquot Name = zircon
Analysis Purpose = NONE
Laboratory Name = RIGL
Analyst Name = MassSpec
Aliquot Reference = NONE
Aliquot Instrumental Method = ID-TIMS
Aliquot Instrumental Method Reference = NONE
Calibration Uncertainty 206/238 = 0.0000
Calibration Uncertainty 208/232 = 0.0000
CalibrationUncertainty 207/206 = 0.0000
Aliquot Comment = NONE

Sample Metadata
Stratigraphic Formation Name = NONE
Stratigraphic Geologic Age (Ma) = NONE ( 0 Ma - 0 Ma )
Stratigraphic Minimum Absolute Age (Ma) = 0.0
Stratigraphic Maximum Absolute Age (Ma) = 0.0
Detrital Type = NONE
Keywords:



Sample Date Models
Sample Date Model Name: weighted mean 206Pb/238U (Th-corrected)
Value: 206609335.7934817969799041748046875
Uncertainty Type: ABS
One Sigma: 59934.93151433908496983349323272705078125
Mean Squared Weighted Deviation: 1.8960769952914364733231877835351042449474334716796875
Internal Two Sigma Uncertainty: 119869.8630286781699396669864654541015625
PlusInternal Two Sigma Uncertainty:
Minus Internal Two Sigma Uncertainty:
Internal Two Sigma Uncertainty with Tracer Calibration Uncertainty: 151128.50570509329554624855518341064453125
Plus Internal Two Sigma Uncertainty with Tracer Calibration Uncertainty:
Minus Internal Two Sigma Uncertainty with Tracer Calibration Uncertainty:
Internal Two Sigma Uncertainty with Tracer Calibration and Decay Constant Uncertainty: 267727.7825394120882265269756317138671875
Plus Internal Two Sigma Uncertainty with Tracer Calibration and Decay Constant Uncertainty:
Minus Internal Two Sigma Uncertainty with Tracer Calibration and Decay Constant Uncertainty:

Included Fractions Vector:
z08
z10
z11
z15
z16
z17
z19

Explanation: Explanation
Comment: Comment
Preferred: true


Alph Pb Models:
Name Value Uncertainty Type One Sigma
PbD250419 0.00144 ABS 0.00025


Analysis Fractions
Sample Name = AF25-005
Legacy = false
Fraction ID = z08
Grain ID = z08
Zircon = true
Time Stamp = March 31, 2026 4:06 PM
Mineral Name = zircon
Setting Type = other
Number of Grains = 1
Estimated Date = 0.0
Stacey Kramers One Percent Uncertainty = 1.0000
Stacey Kramers Correlation Coefficients = 0.5000
Physically Abraded = false
Leached in HF Acid = false
Annealed and Chemically Abraded = false
Chemically Purified UPb = false
Analysis Fraction Comment = NONE
Pb Blank ID = 20250504_RIGL v.1.0
TracerID = ET535 v.3.0
Fractionation Corrected Pb = false
Alpha Pb Model ID = PbD250419
Fractionation Corrected U = false
Alpha U Model ID = #NONE#

Pb Collector Type = NONE
U Collector Type = NONE

Analysis Measures
Name Value Uncertainty Type One Sigma
alphaPb 0.00144 ABS 0.00025
alphaU 0.00082 ABS 0.0
ar231_235sample 1.1 ABS 0.1
fractionMass 0.01 ABS 0.0
pbBlankMassInGrams 0.0 ABS 0.0
r18O_16O 0.00206 ABS 0.00002
r18O_16O_revised 0.00206 ABS 0.00002
r238_235b 137.8185 ABS 0.0223
r238_235s 137.8185 ABS 0.0223
r265_267m 0.98948 PCT 0.00366
r270_265m 0.44353 PCT 0.00599
r270_267m 0.43886 PCT 0.00443
rTh_Umagma 3.5 ABS 0.5
tracerMassInGrams 0.0077 ABS 0.0001
uBlankMassInGrams 0.0 ABS 0.0

Measured Ratios
Name Value Uncertainty Type One Sigma
r204_205m 0.00139 PCT 0.18484
r206_204m 1,048.98525 PCT 0.18667
r206_205m 1.45942 PCT 0.00777
r206_207m 15.7405 PCT 0.02485
r206_208m 12.68335 PCT 0.03006
r207_204m 66.67327 PCT 0.18077
r207_205m 0.09272 PCT 0.02712
r208_204m 82.70589 PCT 0.18596
r208_205m 0.11507 PCT 0.02883
r233_235m 0.99353 PCT 0.00366
r238_233m 0.44353 PCT 0.00599
r238_235m 0.44066 PCT 0.00443

Radiogenic Isotope Ratios
Name Value Uncertainty Type One Sigma
r206_238r 0.03258 ABS 0.00001
r206_238r_Th 0.0326 ABS 0.00001
r207_206r 0.05027 ABS 0.00016
r207_206r_Pa 0.05027 ABS 0.00016
r207_206r_Th 0.05024 ABS 0.00016
r207_206r_ThPa 0.05024 ABS 0.00016
r207_235r 0.2257 ABS 0.00076
r207_235r_Pa 0.2257 ABS 0.00076
r208_206r 0.04528 ABS 0.0
rhoR206_238r__r207_235r 0.61728 ABS 0.0
rhoR206_238r__r207_235r_Pa 0.61727 ABS 0.0
rhoR206_238r_Th__r207_235r 0.617 ABS 0.0
rhoR206_238r_Th__r207_235r_Pa 0.61699 ABS 0.0
rhoR207_206r__r238_206r -0.53007 ABS 0.0
rhoR207_206r_Pa__r238_206r -0.53006 ABS 0.0
rhoR207_206r_Th__r238_206r_Th -0.52982 ABS 0.0
rhoR207_206r_ThPa__r238_206r_Th -0.52981 ABS 0.0

Radiogenic Isotope Dates
Name Value Uncertainty Type One Sigma
age206_238r 206.668 Ma ABS 0.087 Ma
age206_238r_Th 206.769 Ma ABS 0.087 Ma
age207_206r 206.387 Ma ABS 7.262 Ma
age207_206r_Pa 206.34 Ma ABS 7.263 Ma
age207_206r_Th 205.232 Ma ABS 7.265 Ma
age207_206r_ThPa 205.185 Ma ABS 7.265 Ma
age207_235r 206.645 Ma ABS 0.631 Ma
age207_235r_Pa 206.641 Ma ABS 0.631 Ma
bestAge 206.668 Ma ABS 0.087 Ma
percentDiscordance -0.13591

Compositional Measures
Name Value Uncertainty Type One Sigma
concPb206_ib 0.0 ABS 0.0
concPb206_r 0.0 ABS 0.0
concPb206_rib 0.0 ABS 0.0
concPb_ib 0.0 ABS 0.0
concPb_r 0.0 ABS 0.0
concPb_rib 0.0 ABS 0.0
concU 0.0 ABS 0.0
massPb_rib 0.0 ABS 0.0
massU 0.0 ABS 0.0
radToCommonTotal 16.36121 ABS 0.0
rTh_Usample 0.14285 ABS 0.0
totCommonPbMass 0.0 ABS 0.0
totRadiogenicPbMass 0.0 ABS 0.0

Sample Isochron Ratios
Name Value Uncertainty Type One Sigma
r206_204tfc 1,124.24029 ABS 0.0
r207_206s 0.05027 ABS 0.0
r235_207s 4.4306 ABS 0.0
r238_206s 30.69482 ABS 0.0
r238_207s 610.61875 ABS 0.0


Sample Name = AF25-005
Legacy = false
Fraction ID = z10
Grain ID = z10
Zircon = true
Time Stamp = March 31, 2026 4:06 PM
Mineral Name = zircon
Setting Type = other
Number of Grains = 1
Estimated Date = 0.0
Stacey Kramers One Percent Uncertainty = 1.0000
Stacey Kramers Correlation Coefficients = 0.5000
Physically Abraded = false
Leached in HF Acid = false
Annealed and Chemically Abraded = false
Chemically Purified UPb = false
Analysis Fraction Comment = NONE
Pb Blank ID = 20250504_RIGL v.1.0
TracerID = ET535 v.3.0
Fractionation Corrected Pb = false
Alpha Pb Model ID = PbD250419
Fractionation Corrected U = false
Alpha U Model ID = #NONE#

Pb Collector Type = NONE
U Collector Type = NONE

Analysis Measures
Name Value Uncertainty Type One Sigma
alphaPb 0.00144 ABS 0.00025
alphaU 0.00078 ABS 0.0
ar231_235sample 1.1 ABS 0.1
fractionMass 0.01 ABS 0.0
pbBlankMassInGrams 0.0 ABS 0.0
r18O_16O 0.00206 ABS 0.00002
r18O_16O_revised 0.00206 ABS 0.00002
r238_235b 137.8185 ABS 0.0223
r238_235s 137.8185 ABS 0.0223
r265_267m 0.99186 PCT 0.00429
r270_265m 0.09786 PCT 0.0104
r270_267m 0.09707 PCT 0.00944
rTh_Umagma 3.5 ABS 0.5
tracerMassInGrams 0.008 ABS 0.0001
uBlankMassInGrams 0.0 ABS 0.0

Measured Ratios
Name Value Uncertainty Type One Sigma
r204_205m 0.00099 PCT 0.27375
r206_204m 329.97575 PCT 0.2695
r206_205m 0.32546 PCT 0.01164
r206_207m 10.91401 PCT 0.04147
r206_208m 6.941 PCT 0.03877
r207_204m 30.23429 PCT 0.26828
r207_205m 0.02982 PCT 0.04321
r208_204m 47.54045 PCT 0.27035
r208_205m 0.04689 PCT 0.04247
r233_235m 0.99593 PCT 0.00429
r238_233m 0.09786 PCT 0.0104
r238_235m 0.09746 PCT 0.00944

Radiogenic Isotope Ratios
Name Value Uncertainty Type One Sigma
r206_238r 0.03256 ABS 0.00003
r206_238r_Th 0.03258 ABS 0.00003
r207_206r 0.05023 ABS 0.00051
r207_206r_Pa 0.05023 ABS 0.00051
r207_206r_Th 0.05021 ABS 0.00051
r207_206r_ThPa 0.05021 ABS 0.00051
r207_235r 0.22542 ABS 0.00244
r207_235r_Pa 0.22541 ABS 0.00244
r208_206r 0.03907 ABS 0.0
rhoR206_238r__r207_235r 0.65487 ABS 0.0
rhoR206_238r__r207_235r_Pa 0.65486 ABS 0.0
rhoR206_238r_Th__r207_235r 0.65457 ABS 0.0
rhoR206_238r_Th__r207_235r_Pa 0.65457 ABS 0.0
rhoR207_206r__r238_206r -0.59425 ABS 0.0
rhoR207_206r_Pa__r238_206r -0.59425 ABS 0.0
rhoR207_206r_Th__r238_206r_Th -0.59398 ABS 0.0
rhoR207_206r_ThPa__r238_206r_Th -0.59398 ABS 0.0

Radiogenic Isotope Dates
Name Value Uncertainty Type One Sigma
age206_238r 206.552 Ma ABS 0.212 Ma
age206_238r_Th 206.654 Ma ABS 0.212 Ma
age207_206r 204.762 Ma ABS 23.556 Ma
age207_206r_Pa 204.714 Ma ABS 23.557 Ma
age207_206r_Th 203.599 Ma ABS 23.563 Ma
age207_206r_ThPa 203.551 Ma ABS 23.564 Ma
age207_235r 206.408 Ma ABS 2.018 Ma
age207_235r_Pa 206.404 Ma ABS 2.018 Ma
bestAge 206.552 Ma ABS 0.212 Ma
percentDiscordance -0.87439

Compositional Measures
Name Value Uncertainty Type One Sigma
concPb206_ib 0.0 ABS 0.0
concPb206_r 0.0 ABS 0.0
concPb206_rib 0.0 ABS 0.0
concPb_ib 0.0 ABS 0.0
concPb_r 0.0 ABS 0.0
concPb_rib 0.0 ABS 0.0
concU 0.0 ABS 0.0
massPb_rib 0.0 ABS 0.0
massU 0.0 ABS 0.0
radToCommonTotal 5.0746 ABS 0.0
rTh_Usample 0.12326 ABS 0.0
totCommonPbMass 0.0 ABS 0.0
totRadiogenicPbMass 0.0 ABS 0.0

Sample Isochron Ratios
Name Value Uncertainty Type One Sigma
r206_204tfc 363.52401 ABS 0.0
r207_206s 0.05023 ABS 0.0
r235_207s 4.43623 ABS 0.0
r238_206s 30.7123 ABS 0.0
r238_207s 611.39482 ABS 0.0


Sample Name = AF25-005
Legacy = false
Fraction ID = z11
Grain ID = z11
Zircon = true
Time Stamp = March 31, 2026 4:06 PM
Mineral Name = zircon
Setting Type = other
Number of Grains = 1
Estimated Date = 0.0
Stacey Kramers One Percent Uncertainty = 1.0000
Stacey Kramers Correlation Coefficients = 0.5000
Physically Abraded = false
Leached in HF Acid = false
Annealed and Chemically Abraded = false
Chemically Purified UPb = false
Analysis Fraction Comment = NONE
Pb Blank ID = 20250504_RIGL v.1.0
TracerID = ET535 v.3.0
Fractionation Corrected Pb = false
Alpha Pb Model ID = PbD250419
Fractionation Corrected U = false
Alpha U Model ID = #NONE#

Pb Collector Type = NONE
U Collector Type = NONE

Analysis Measures
Name Value Uncertainty Type One Sigma
alphaPb 0.00144 ABS 0.00025
alphaU 0.00074 ABS 0.0
ar231_235sample 1.1 ABS 0.1
fractionMass 0.01 ABS 0.0
pbBlankMassInGrams 0.0 ABS 0.0
r18O_16O 0.00206 ABS 0.00002
r18O_16O_revised 0.00206 ABS 0.00002
r238_235b 137.8185 ABS 0.0223
r238_235s 137.8185 ABS 0.0223
r265_267m 0.99142 PCT 0.00419
r270_265m 0.14906 PCT 0.01035
r270_267m 0.14779 PCT 0.01054
rTh_Umagma 3.5 ABS 0.5
tracerMassInGrams 0.0074 ABS 0.0001
uBlankMassInGrams 0.0 ABS 0.0

Measured Ratios
Name Value Uncertainty Type One Sigma
r204_205m 0.00107 PCT 0.29107
r206_204m 460.62732 PCT 0.3026
r206_205m 0.49364 PCT 0.02341
r206_207m 12.42023 PCT 0.05123
r206_208m 8.42158 PCT 0.05765
r207_204m 37.0867 PCT 0.29509
r207_205m 0.03975 PCT 0.04814
r208_204m 54.69607 PCT 0.29723
r208_205m 0.05862 PCT 0.05276
r233_235m 0.99549 PCT 0.00419
r238_233m 0.14906 PCT 0.01035
r238_235m 0.14839 PCT 0.01054

Radiogenic Isotope Ratios
Name Value Uncertainty Type One Sigma
r206_238r 0.03256 ABS 0.00003
r206_238r_Th 0.03258 ABS 0.00003
r207_206r 0.05072 ABS 0.00036
r207_206r_Pa 0.05072 ABS 0.00036
r207_206r_Th 0.0507 ABS 0.00036
r207_206r_ThPa 0.0507 ABS 0.00036
r207_235r 0.22761 ABS 0.00175
r207_235r_Pa 0.22761 ABS 0.00175
r208_206r 0.04328 ABS 0.0
rhoR206_238r__r207_235r 0.64936 ABS 0.0
rhoR206_238r__r207_235r_Pa 0.64935 ABS 0.0
rhoR206_238r_Th__r207_235r 0.64908 ABS 0.0
rhoR206_238r_Th__r207_235r_Pa 0.64907 ABS 0.0
rhoR207_206r__r238_206r -0.58024 ABS 0.0
rhoR207_206r_Pa__r238_206r -0.58024 ABS 0.0
rhoR207_206r_Th__r238_206r_Th -0.57999 ABS 0.0
rhoR207_206r_ThPa__r238_206r_Th -0.57999 ABS 0.0

Radiogenic Isotope Dates
Name Value Uncertainty Type One Sigma
age206_238r 206.555 Ma ABS 0.169 Ma
age206_238r_Th 206.656 Ma ABS 0.169 Ma
age207_206r 227.194 Ma ABS 16.622 Ma
age207_206r_Pa 227.146 Ma ABS 16.623 Ma
age207_206r_Th 226.04 Ma ABS 16.627 Ma
age207_206r_ThPa 225.993 Ma ABS 16.628 Ma
age207_235r 208.227 Ma ABS 1.45 Ma
age207_235r_Pa 208.223 Ma ABS 1.451 Ma
bestAge 206.555 Ma ABS 0.169 Ma
percentDiscordance 9.08427

Compositional Measures
Name Value Uncertainty Type One Sigma
concPb206_ib 0.0 ABS 0.0
concPb206_r 0.0 ABS 0.0
concPb206_rib 0.0 ABS 0.0
concPb_ib 0.0 ABS 0.0
concPb_r 0.0 ABS 0.0
concPb_rib 0.0 ABS 0.0
concU 0.0 ABS 0.0
massPb_rib 0.0 ABS 0.0
massU 0.0 ABS 0.0
radToCommonTotal 7.16838 ABS 0.0
rTh_Usample 0.13652 ABS 0.0
totCommonPbMass 0.0 ABS 0.0
totRadiogenicPbMass 0.0 ABS 0.0

Sample Isochron Ratios
Name Value Uncertainty Type One Sigma
r206_204tfc 503.72248 ABS 0.0
r207_206s 0.05072 ABS 0.0
r235_207s 4.39341 ABS 0.0
r238_206s 30.71191 ABS 0.0
r238_207s 605.49283 ABS 0.0


Sample Name = AF25-005
Legacy = false
Fraction ID = z15
Grain ID = z15
Zircon = true
Time Stamp = March 31, 2026 4:06 PM
Mineral Name = zircon
Setting Type = other
Number of Grains = 1
Estimated Date = 0.0
Stacey Kramers One Percent Uncertainty = 1.0000
Stacey Kramers Correlation Coefficients = 0.5000
Physically Abraded = false
Leached in HF Acid = false
Annealed and Chemically Abraded = false
Chemically Purified UPb = false
Analysis Fraction Comment = NONE
Pb Blank ID = 20250504_RIGL v.1.0
TracerID = ET535 v.3.0
Fractionation Corrected Pb = false
Alpha Pb Model ID = PbD250419
Fractionation Corrected U = false
Alpha U Model ID = #NONE#

Pb Collector Type = NONE
U Collector Type = NONE

Analysis Measures
Name Value Uncertainty Type One Sigma
alphaPb 0.00144 ABS 0.00025
alphaU 0.00071 ABS 0.0
ar231_235sample 1.1 ABS 0.1
fractionMass 0.01 ABS 0.0
pbBlankMassInGrams 0.0 ABS 0.0
r18O_16O 0.00206 ABS 0.00002
r18O_16O_revised 0.00206 ABS 0.00002
r238_235b 137.8185 ABS 0.0223
r238_235s 137.8185 ABS 0.0223
r265_267m 0.99163 PCT 0.00396
r270_265m 0.11134 PCT 0.01332
r270_267m 0.11041 PCT 0.013
rTh_Umagma 3.5 ABS 0.5
tracerMassInGrams 0.0074 ABS 0.0001
uBlankMassInGrams 0.0 ABS 0.0

Measured Ratios
Name Value Uncertainty Type One Sigma
r204_205m 0.00133 PCT 0.21704
r206_204m 282.36292 PCT 0.2181
r206_205m 0.37513 PCT 0.01624
r206_207m 10.05055 PCT 0.0457
r206_208m 6.11729 PCT 0.02622
r207_204m 28.09535 PCT 0.23551
r207_205m 0.03733 PCT 0.04484
r208_204m 46.15821 PCT 0.21664
r208_205m 0.06132 PCT 0.02826
r233_235m 0.9957 PCT 0.00396
r238_233m 0.11134 PCT 0.01332
r238_235m 0.11086 PCT 0.013

Radiogenic Isotope Ratios
Name Value Uncertainty Type One Sigma
r206_238r 0.03252 ABS 0.00004
r206_238r_Th 0.03254 ABS 0.00004
r207_206r 0.05015 ABS 0.00061
r207_206r_Pa 0.05015 ABS 0.00061
r207_206r_Th 0.05012 ABS 0.00061
r207_206r_ThPa 0.05012 ABS 0.00061
r207_235r 0.22477 ABS 0.00293
r207_235r_Pa 0.22476 ABS 0.00293
r208_206r 0.03829 ABS 0.0
rhoR206_238r__r207_235r 0.65989 ABS 0.0
rhoR206_238r__r207_235r_Pa 0.65989 ABS 0.0
rhoR206_238r_Th__r207_235r 0.6596 ABS 0.0
rhoR206_238r_Th__r207_235r_Pa 0.6596 ABS 0.0
rhoR207_206r__r238_206r -0.60058 ABS 0.0
rhoR207_206r_Pa__r238_206r -0.60058 ABS 0.0
rhoR207_206r_Th__r238_206r_Th -0.60032 ABS 0.0
rhoR207_206r_ThPa__r238_206r_Th -0.60032 ABS 0.0

Radiogenic Isotope Dates
Name Value Uncertainty Type One Sigma
age206_238r 206.312 Ma ABS 0.253 Ma
age206_238r_Th 206.414 Ma ABS 0.253 Ma
age207_206r 200.804 Ma ABS 28.441 Ma
age207_206r_Pa 200.756 Ma ABS 28.442 Ma
age207_206r_Th 199.639 Ma ABS 28.45 Ma
age207_206r_ThPa 199.591 Ma ABS 28.451 Ma
age207_235r 205.869 Ma ABS 2.429 Ma
age207_235r_Pa 205.865 Ma ABS 2.429 Ma
bestAge 206.312 Ma ABS 0.253 Ma
percentDiscordance -2.74263

Compositional Measures
Name Value Uncertainty Type One Sigma
concPb206_ib 0.0 ABS 0.0
concPb206_r 0.0 ABS 0.0
concPb206_rib 0.0 ABS 0.0
concPb_ib 0.0 ABS 0.0
concPb_r 0.0 ABS 0.0
concPb_rib 0.0 ABS 0.0
concU 0.0 ABS 0.0
massPb_rib 0.0 ABS 0.0
massU 0.0 ABS 0.0
radToCommonTotal 4.18597 ABS 0.0
rTh_Usample 0.12079 ABS 0.0
totCommonPbMass 0.0 ABS 0.0
totRadiogenicPbMass 0.0 ABS 0.0

Sample Isochron Ratios
Name Value Uncertainty Type One Sigma
r206_204tfc 303.35533 ABS 0.0
r207_206s 0.05015 ABS 0.0
r235_207s 4.44906 ABS 0.0
r238_206s 30.74865 ABS 0.0
r238_207s 613.16302 ABS 0.0


Sample Name = AF25-005
Legacy = false
Fraction ID = z16
Grain ID = z16
Zircon = true
Time Stamp = March 31, 2026 4:06 PM
Mineral Name = zircon
Setting Type = other
Number of Grains = 1
Estimated Date = 0.0
Stacey Kramers One Percent Uncertainty = 1.0000
Stacey Kramers Correlation Coefficients = 0.5000
Physically Abraded = false
Leached in HF Acid = false
Annealed and Chemically Abraded = false
Chemically Purified UPb = false
Analysis Fraction Comment = NONE
Pb Blank ID = 20250504_RIGL v.1.0
TracerID = ET535 v.3.0
Fractionation Corrected Pb = false
Alpha Pb Model ID = PbD250419
Fractionation Corrected U = false
Alpha U Model ID = #NONE#

Pb Collector Type = NONE
U Collector Type = NONE

Analysis Measures
Name Value Uncertainty Type One Sigma
alphaPb 0.00144 ABS 0.00025
alphaU 0.00076 ABS 0.0
ar231_235sample 1.1 ABS 0.1
fractionMass 0.01 ABS 0.0
pbBlankMassInGrams 0.0 ABS 0.0
r18O_16O 0.00206 ABS 0.00002
r18O_16O_revised 0.00206 ABS 0.00002
r238_235b 137.8185 ABS 0.0223
r238_235s 137.8185 ABS 0.0223
r265_267m 0.99172 PCT 0.00561
r270_265m 0.11265 PCT 0.01235
r270_267m 0.11172 PCT 0.01338
rTh_Umagma 3.5 ABS 0.5
tracerMassInGrams 0.0079 ABS 0.0001
uBlankMassInGrams 0.0 ABS 0.0

Measured Ratios
Name Value Uncertainty Type One Sigma
r204_205m 0.00117 PCT 0.39628
r206_204m 321.01336 PCT 0.39256
r206_205m 0.37627 PCT 0.02181
r206_207m 10.7593 PCT 0.06389
r206_208m 6.87919 PCT 0.05273
r207_204m 29.83588 PCT 0.38763
r207_205m 0.03497 PCT 0.06056
r208_204m 46.66663 PCT 0.40179
r208_205m 0.0547 PCT 0.04735
r233_235m 0.99579 PCT 0.00561
r238_233m 0.11265 PCT 0.01235
r238_235m 0.11217 PCT 0.01338

Radiogenic Isotope Ratios
Name Value Uncertainty Type One Sigma
r206_238r 0.03249 ABS 0.00004
r206_238r_Th 0.03251 ABS 0.00004
r207_206r 0.04981 ABS 0.00055
r207_206r_Pa 0.04981 ABS 0.00055
r207_206r_Th 0.04978 ABS 0.00055
r207_206r_ThPa 0.04978 ABS 0.00055
r207_235r 0.22302 ABS 0.00262
r207_235r_Pa 0.22302 ABS 0.00262
r208_206r 0.03583 ABS 0.0
rhoR206_238r__r207_235r 0.64949 ABS 0.0
rhoR206_238r__r207_235r_Pa 0.64949 ABS 0.0
rhoR206_238r_Th__r207_235r 0.64919 ABS 0.0
rhoR206_238r_Th__r207_235r_Pa 0.64919 ABS 0.0
rhoR207_206r__r238_206r -0.58914 ABS 0.0
rhoR207_206r_Pa__r238_206r -0.58914 ABS 0.0
rhoR207_206r_Th__r238_206r_Th -0.58887 ABS 0.0
rhoR207_206r_ThPa__r238_206r_Th -0.58887 ABS 0.0

Radiogenic Isotope Dates
Name Value Uncertainty Type One Sigma
age206_238r 206.119 Ma ABS 0.227 Ma
age206_238r_Th 206.221 Ma ABS 0.227 Ma
age207_206r 184.916 Ma ABS 25.78 Ma
age207_206r_Pa 184.867 Ma ABS 25.781 Ma
age207_206r_Th 183.743 Ma ABS 25.788 Ma
age207_206r_ThPa 183.694 Ma ABS 25.789 Ma
age207_235r 204.423 Ma ABS 2.178 Ma
age207_235r_Pa 204.419 Ma ABS 2.178 Ma
bestAge 206.119 Ma ABS 0.227 Ma
percentDiscordance -11.46617

Compositional Measures
Name Value Uncertainty Type One Sigma
concPb206_ib 0.0 ABS 0.0
concPb206_r 0.0 ABS 0.0
concPb206_rib 0.0 ABS 0.0
concPb_ib 0.0 ABS 0.0
concPb_r 0.0 ABS 0.0
concPb_rib 0.0 ABS 0.0
concU 0.0 ABS 0.0
massPb_rib 0.0 ABS 0.0
massU 0.0 ABS 0.0
radToCommonTotal 4.82757 ABS 0.0
rTh_Usample 0.11303 ABS 0.0
totCommonPbMass 0.0 ABS 0.0
totRadiogenicPbMass 0.0 ABS 0.0

Sample Isochron Ratios
Name Value Uncertainty Type One Sigma
r206_204tfc 347.85197 ABS 0.0
r207_206s 0.04981 ABS 0.0
r235_207s 4.48383 ABS 0.0
r238_206s 30.77793 ABS 0.0
r238_207s 617.95493 ABS 0.0


Sample Name = AF25-005
Legacy = false
Fraction ID = z17
Grain ID = z17
Zircon = true
Time Stamp = March 31, 2026 4:06 PM
Mineral Name = zircon
Setting Type = other
Number of Grains = 1
Estimated Date = 0.0
Stacey Kramers One Percent Uncertainty = 1.0000
Stacey Kramers Correlation Coefficients = 0.5000
Physically Abraded = false
Leached in HF Acid = false
Annealed and Chemically Abraded = false
Chemically Purified UPb = false
Analysis Fraction Comment = NONE
Pb Blank ID = 20250504_RIGL v.1.0
TracerID = ET535 v.3.0
Fractionation Corrected Pb = false
Alpha Pb Model ID = PbD250419
Fractionation Corrected U = false
Alpha U Model ID = #NONE#

Pb Collector Type = NONE
U Collector Type = NONE

Analysis Measures
Name Value Uncertainty Type One Sigma
alphaPb 0.00144 ABS 0.00025
alphaU 0.00073 ABS 0.0
ar231_235sample 1.1 ABS 0.1
fractionMass 0.01 ABS 0.0
pbBlankMassInGrams 0.0 ABS 0.0
r18O_16O 0.00206 ABS 0.00002
r18O_16O_revised 0.00206 ABS 0.00002
r238_235b 137.8185 ABS 0.0223
r238_235s 137.8185 ABS 0.0223
r265_267m 0.99202 PCT 0.00779
r270_265m 0.06184 PCT 0.03752
r270_267m 0.06134 PCT 0.03815
rTh_Umagma 3.5 ABS 0.5
tracerMassInGrams 0.008 ABS 0.0001
uBlankMassInGrams 0.0 ABS 0.0

Measured Ratios
Name Value Uncertainty Type One Sigma
r204_205m 0.0006 PCT 0.44343
r206_204m 335.61617 PCT 0.4369
r206_205m 0.20047 PCT 0.02332
r206_207m 11.20464 PCT 0.08929
r206_208m 7.24782 PCT 0.07211
r207_204m 29.95618 PCT 0.45003
r207_205m 0.01789 PCT 0.08383
r208_204m 46.31031 PCT 0.45351
r208_205m 0.02766 PCT 0.07047
r233_235m 0.99609 PCT 0.00779
r238_233m 0.06184 PCT 0.03752
r238_235m 0.06159 PCT 0.03815

Radiogenic Isotope Ratios
Name Value Uncertainty Type One Sigma
r206_238r 0.03248 ABS 0.00004
r206_238r_Th 0.0325 ABS 0.00004
r207_206r 0.05059 ABS 0.0005
r207_206r_Pa 0.05059 ABS 0.0005
r207_206r_Th 0.05057 ABS 0.0005
r207_206r_ThPa 0.05057 ABS 0.0005
r207_235r 0.2265 ABS 0.0024
r207_235r_Pa 0.22649 ABS 0.0024
r208_206r 0.03984 ABS 0.0
rhoR206_238r__r207_235r 0.58561 ABS 0.0
rhoR206_238r__r207_235r_Pa 0.58561 ABS 0.0
rhoR206_238r_Th__r207_235r 0.58528 ABS 0.0
rhoR206_238r_Th__r207_235r_Pa 0.58528 ABS 0.0
rhoR207_206r__r238_206r -0.50927 ABS 0.0
rhoR207_206r_Pa__r238_206r -0.50927 ABS 0.0
rhoR207_206r_Th__r238_206r_Th -0.50898 ABS 0.0
rhoR207_206r_ThPa__r238_206r_Th -0.50898 ABS 0.0

Radiogenic Isotope Dates
Name Value Uncertainty Type One Sigma
age206_238r 206.078 Ma ABS 0.228 Ma
age206_238r_Th 206.18 Ma ABS 0.228 Ma
age207_206r 221.256 Ma ABS 23.064 Ma
age207_206r_Pa 221.209 Ma ABS 23.065 Ma
age207_206r_Th 220.095 Ma ABS 23.071 Ma
age207_206r_ThPa 220.047 Ma ABS 23.072 Ma
age207_235r 207.304 Ma ABS 1.985 Ma
age207_235r_Pa 207.3 Ma ABS 1.985 Ma
bestAge 206.078 Ma ABS 0.228 Ma
percentDiscordance 6.8598

Compositional Measures
Name Value Uncertainty Type One Sigma
concPb206_ib 0.0 ABS 0.0
concPb206_r 0.0 ABS 0.0
concPb206_rib 0.0 ABS 0.0
concPb_ib 0.0 ABS 0.0
concPb_r 0.0 ABS 0.0
concPb_rib 0.0 ABS 0.0
concU 0.0 ABS 0.0
massPb_rib 0.0 ABS 0.0
massU 0.0 ABS 0.0
radToCommonTotal 5.53975 ABS 0.0
rTh_Usample 0.12566 ABS 0.0
totCommonPbMass 0.0 ABS 0.0
totRadiogenicPbMass 0.0 ABS 0.0

Sample Isochron Ratios
Name Value Uncertainty Type One Sigma
r206_204tfc 394.74808 ABS 0.0
r207_206s 0.05059 ABS 0.0
r235_207s 4.41505 ABS 0.0
r238_206s 30.78403 ABS 0.0
r238_207s 608.4752 ABS 0.0


Sample Name = AF25-005
Legacy = false
Fraction ID = z19
Grain ID = z19
Zircon = true
Time Stamp = March 31, 2026 4:06 PM
Mineral Name = zircon
Setting Type = other
Number of Grains = 1
Estimated Date = 0.0
Stacey Kramers One Percent Uncertainty = 1.0000
Stacey Kramers Correlation Coefficients = 0.5000
Physically Abraded = false
Leached in HF Acid = false
Annealed and Chemically Abraded = false
Chemically Purified UPb = false
Analysis Fraction Comment = NONE
Pb Blank ID = 20250504_RIGL v.1.0
TracerID = ET535 v.3.0
Fractionation Corrected Pb = false
Alpha Pb Model ID = PbD250419
Fractionation Corrected U = false
Alpha U Model ID = #NONE#

Pb Collector Type = NONE
U Collector Type = NONE

Analysis Measures
Name Value Uncertainty Type One Sigma
alphaPb 0.00144 ABS 0.00025
alphaU 0.00078 ABS 0.0
ar231_235sample 1.1 ABS 0.1
fractionMass 0.01 ABS 0.0
pbBlankMassInGrams 0.0 ABS 0.0
r18O_16O 0.00206 ABS 0.00002
r18O_16O_revised 0.00206 ABS 0.00002
r238_235b 137.8185 ABS 0.0223
r238_235s 137.8185 ABS 0.0223
r265_267m 0.99188 PCT 0.00289
r270_265m 0.09661 PCT 0.0079
r270_267m 0.09582 PCT 0.00744
rTh_Umagma 3.5 ABS 0.5
tracerMassInGrams 0.008 ABS 0.0001
uBlankMassInGrams 0.0 ABS 0.0

Measured Ratios
Name Value Uncertainty Type One Sigma
r204_205m 0.00078 PCT 0.20913
r206_204m 405.09799 PCT 0.21024
r206_205m 0.31731 PCT 0.01096
r206_207m 11.98397 PCT 0.02769
r206_208m 8.22209 PCT 0.02819
r207_204m 33.80366 PCT 0.21345
r207_205m 0.02648 PCT 0.02583
r208_204m 49.26946 PCT 0.20849
r208_205m 0.03859 PCT 0.0302
r233_235m 0.99595 PCT 0.00289
r238_233m 0.09661 PCT 0.0079
r238_235m 0.09622 PCT 0.00744

Radiogenic Isotope Ratios
Name Value Uncertainty Type One Sigma
r206_238r 0.03253 ABS 0.00003
r206_238r_Th 0.03255 ABS 0.00003
r207_206r 0.05044 ABS 0.0004
r207_206r_Pa 0.05044 ABS 0.0004
r207_206r_Th 0.05042 ABS 0.0004
r207_206r_ThPa 0.05041 ABS 0.0004
r207_235r 0.22613 ABS 0.0019
r207_235r_Pa 0.22612 ABS 0.0019
r208_206r 0.03779 ABS 0.0
rhoR206_238r__r207_235r 0.64678 ABS 0.0
rhoR206_238r__r207_235r_Pa 0.64678 ABS 0.0
rhoR206_238r_Th__r207_235r 0.64649 ABS 0.0
rhoR206_238r_Th__r207_235r_Pa 0.64649 ABS 0.0
rhoR207_206r__r238_206r -0.58153 ABS 0.0
rhoR207_206r_Pa__r238_206r -0.58153 ABS 0.0
rhoR207_206r_Th__r238_206r_Th -0.58126 ABS 0.0
rhoR207_206r_ThPa__r238_206r_Th -0.58126 ABS 0.0

Radiogenic Isotope Dates
Name Value Uncertainty Type One Sigma
age206_238r 206.356 Ma ABS 0.173 Ma
age206_238r_Th 206.458 Ma ABS 0.173 Ma
age207_206r 214.323 Ma ABS 18.199 Ma
age207_206r_Pa 214.275 Ma ABS 18.2 Ma
age207_206r_Th 213.159 Ma ABS 18.205 Ma
age207_206r_ThPa 213.112 Ma ABS 18.206 Ma
age207_235r 206.998 Ma ABS 1.57 Ma
age207_235r_Pa 206.995 Ma ABS 1.57 Ma
bestAge 206.356 Ma ABS 0.173 Ma
percentDiscordance 3.71725

Compositional Measures
Name Value Uncertainty Type One Sigma
concPb206_ib 0.0 ABS 0.0
concPb206_r 0.0 ABS 0.0
concPb206_rib 0.0 ABS 0.0
concPb_ib 0.0 ABS 0.0
concPb_r 0.0 ABS 0.0
concPb_rib 0.0 ABS 0.0
concU 0.0 ABS 0.0
massPb_rib 0.0 ABS 0.0
massU 0.0 ABS 0.0
radToCommonTotal 6.4628 ABS 0.0
rTh_Usample 0.11921 ABS 0.0
totCommonPbMass 0.0 ABS 0.0
totRadiogenicPbMass 0.0 ABS 0.0

Sample Isochron Ratios
Name Value Uncertainty Type One Sigma
r206_204tfc 458.31367 ABS 0.0
r207_206s 0.05044 ABS 0.0
r235_207s 4.42225 ABS 0.0
r238_206s 30.74201 ABS 0.0
r238_207s 609.46741 ABS 0.0




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