This sample belongs to: Natalia Sánchez

Sample Details
Sample Name: sample AFT 2
IGSN: 10.58052/IEATB0002
Laboratory: LATE ANDES
Analyst: Natalia Sánchez
Mineral: apatite
Dosimeter Glass: cn5
Dosimeter Glass U ppm:
Irradiation:
Count Date:
Locality: Argentine
Rock Type: sedimentary
Rock Age:
Acquisition system:
Magnification:
Radiation Facility:
Total Thermal Neutron Fluence:
Position in Irradiation Canister (#):
Area of Graticule Square:
No. of Crystals Counted:
Zeta Factor: 349,06
Zeta Factor Error (1s): 25,9
Rho d:
Rho d (% Relative Error):
N d:
Geometry factor (for EDM and Zeta ICPMS methods):
Etchant:
Etching Conditions:
Method - U:
ICPMS Model:
Laser Model and Type:
Instrumental Method References:
U Calibration Standard:
U ppm of Standard:
Specific Denisty of Dated Mineral:
Avagadro Constant:
Registration Factor (Rsp):
Etching Correction Factor (k):
ICPMS Zeta Standard:
Standard Age:
Standard Age Error:
Primary Zeta:
1 sigma Uncertainty:
Session (Modified) Zeta:
1 sigma (Modified) Uncertainty:
Comment:
Chemistry Method:
Chemistry Laboratory:
Chemistry Comment:
238U Decay Constant: 1.55125E-10
238U Decay Constant Error:
235U Decay Constant: 9.84850E-10
235U Decay Constant Error:
232Th Decay Constant : 4.94750E-11
232Th Decay Constant Error:
Spontaneous Fission Decay Constant: 8.46E-17
Spontaneous Fission Decay Constant Error:
238U/235U: 137.88
Fission Decay Constant Reference: Spadavecchia , A. & Hahn, B. (1967). Die Rotationskammer und einige Anwendungen. Helvetica Physica Acta, 40, p. 1063-1079
Decay Constant References: Steiger, R.H. and Jager, E., 1977, Subcommission on geochronology: Convention on the use of decay constants in geo- and cosmochronology. Earth and Planetary Science Letters, v. 36, no. 3, p. 359-362
Decay Constant Comment:

Sample Metadata
Sample ID: 2
Sample Description: sedimentary rock
GeoObject Type: Individual Sample
Geoobject Classification:
Collection Method:
Material: Rock
Latitude: -37.434186
Longitude: -70.286027
Sample Comment:
Collector:
Material Classification:
Primary Location Name:
Primary Location Type:
Location Description:
Locality:
Locality Description:
Country: Argentina
Provice:
County:
City Or Township:
Platform:
Platform ID:
Original Archival Institution:
Original Archival Contact:
Most Recent Archival Institution:
Most Recent Archival Contact:

Age(s)
Analysis Purpose Preferred Age Type Pooled Age Pooled Age Error +95% Pooled Age Error -95% Chi-squared Value Degrees of Freedom P (Chi-suqared) Mean Crystal Age Mean Crystal Age Error +95% Mean Crystal Age Error -95% Central Age Central Age Error +95% Central Age Error -95% Central Age - Age Dispersion (%) Binomial Age Binomial Age Error +95% Binomial Age Error -95% Other Age Other Age Error Preferred Age Explanation Age Reference
Cooling

Apatite Age
Grain ID N s N i Na Dpar Dper Rmr0 Rho s Rho i Rho s / Rho i Area (Ω) # of Etch Figures 238U/43Ca error (1σ) U ppm U error (1s) Age (Ma) Age error +1s Age error -1s CaO P2O5 F Cl SrO BaO Si02 Na2O CeO2 FeO Total
1 4 10 8.93E-6 5.476030051704
2 4 11 2.10E-5 9.3036084418807
3 2 9 1.25E-5 5.7903554555421
4 2 7 3.14E-5 6.9020644784674
5 5 31 3.73E-5 4.6953669549309
6 3 11 1.31E-5 6.7819988794666
7 3 8 7.53E-6 4.7427278976485
8 6 86 5.03E-5 3.0242451477327
9 2 4 1.53E-5 6.7338351653005
10 2 44 1.20E-5 3.4354491965176
11 1 20 2.53E-5 6.478122920701
12 1 7 8.99E-6 6.3434583345368
13 2 13 1.22E-5 2.4304804352846
14 1 26 2.50E-5 4.7218700200419
15 3 12 1.32E-5 5.2466200547618
16 2 7 1.24E-5 5.5393089051197
17 1 9 8.28E-6 3.6902206855208

Grain Lengths
Grain ID Length Angle to C axis Dpar Tint or Tincle Depth Width Probability of this being a confined length Number of times Intersected
filename:27161.xml
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