This sample belongs to: Sebastian Zapata

Sample Details
Sample Name: H2
IGSN: IESZH0010
Laboratory: Rio Grande do Sul
Analyst: Andrea R. Jelinek
Mineral: apatite
Dosimeter Glass: CN5
Dosimeter Glass U ppm: 12.5
Irradiation:
Count Date:
Locality: Cuevas Range
Rock Type: Granite
Rock Age:
Acquisition system: Axioplan Zeiss Microscope and the Autoscan System
Magnification: 1000
Radiation Facility: Orphèe reactor
Total Thermal Neutron Fluence:
Position in Irradiation Canister (#):
Area of Graticule Square:
No. of Crystals Counted: 20
Zeta Factor: 258.2
Zeta Factor Error (1s): 10.2
Rho d: 5336700
Rho d (% Relative Error):
N d: 10734
Geometry factor (for EDM and Zeta ICPMS methods): 0.5
Etchant: 5.5 N nitric acid
Etching Conditions: 21°C 20 sec
Method - U: EDM
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: H2
Sample Description:
GeoObject Type: Other
Geoobject Classification:
Collection Method:
Material: Rock
Latitude: -27.045555555556
Longitude: -66.681666666667
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
SingleAge

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 29 17 1.9 5
2 29 20 2.1 5
3 36 24 1.5 5
4 42 30 1.5 5
5 34 21 1.8 5
6 24 18 2.1 5
7 28 18 1.6 5
8 30 15 2.0 5
9 37 24 2.2 5
10 40 21 2.3 5
11 33 22 2.4 5
12 36 19 1.9 5
13 22 13 2.1 5
14 29 16 2.3 5
15 29 15 1.7 5
16 34 19 1.7 5
17 38 23 1.4 5
18 35 25 1.4 5
19 40 31 2.1 5
20 28 20 2.1 5
21 28 17 2.3 5
22 34 22 2.6 5
23 33 19 1.9 5
24 28 19 1.6 5
25 27 17 2.0 5
26 34 20 2.2 5
27 32 14 2.3 5
28 32 15 2.4 5
29 28 15 1.9 5

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:19406.xml
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