This sample belongs to: Natalia Sánchez

Sample Details
Sample Name: sample AFT 4
IGSN: 10.58052/IEATB0004
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: 4
Sample Description: sedimentary rock
GeoObject Type: Individual Sample
Geoobject Classification:
Collection Method:
Material: Rock
Latitude: -37.2576
Longitude: -70.4492
Sample Comment:
Collector:
Material Classification:
Primary Location Name:
Primary Location Type:
Location Description:
Locality:
Locality Description:
Country:
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 11 95 3.16E-5 2.2951750956574
2 4 40 1.46E-5 2.328116114651
3 13 136 3.52E-5 2.7661377497534
4 8 104 4.90E-5 1.8679076437222
5 9 39 2.12E-5 2.022058538839
6 28 203 3.02E-5 2.2580332088979
7 2 9 1.77E-5 2.1300049353533
8 13 76 3.15E-5 3.3642828580265
9 26 155 1.77E-5 2.1500984863912
10 7 41 2.01E-5 2.4096425664938
11 2 42 1.46E-5 1.8106040917329
12 18 185 6.28E-5 2.9440603180199
13 3 54 5.20E-5 1.8791676690058
14 4 11 2.79E-5 3.887753980823
15 4 43 3.34E-5 2.2060365005434
16 8 103 3.87E-5 1.9599375617467
17 13 136 2.10E-5 2.560242430783
18 9 61 3.37E-5 2.6913600707357
19 18 130 3.42E-5 3.2979708084769
20 7 54 3.28E-5 3.4271056076389
21 3 26 2.56E-5 2.9258684393362
22 11 71 3.77E-5 2.863488829102
23 10 77 2.38E-5 2.8502150207885
24 17 42 5.04E-5 4.3260737577708
25 12 96 2.93E-5 2.1166077834824
26 4 60 2.38E-5 2.5502830769172

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:27163.xml
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