This sample belongs to: Nicolas Villamizar Escalante
Sample Name: 15SACZ-10A
IGSN: IE232000A
Laboratory: Grenoble Alpes
Analyst: Villamizar-Escalante Nicolas
Mineral: Zircon
Dosimeter Glass: IRMM 541
Dosimeter Glass U ppm: 50
Irradiation: 1-2016
Count Date:
Locality: Colombia
Rock Type: Sedimentary
Rock Age: 157
Acquisition system: Olympus BH-2 microscope
Magnification: 1250x
Radiation Facility: FRM II Munich
Total Thermal Neutron Fluence: 0.5 ×10^15 n/cm2
Position in Irradiation Canister (#): 16
Area of Graticule Square: 8,30E-07
No. of Crystals Counted: 12
Zeta Factor: 139,15
Zeta Factor Error (1s): 4.29
Rho d: 2,39E+05
Rho d (% Relative Error): 1.22
N d: 3965
Geometry factor (for EDM and Zeta ICPMS methods): 0.5
Etchant: NaOH-KOH
Etching Conditions: 228°C
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 ID: 15SACZ-10A
Sample Description: quartz sandstone
GeoObject Type: Individual Sample
Geoobject Classification: ConglomerateAndOrBreccia
Collection Method:
Material: Rock
Latitude: 6.845467
Longitude: -72.80993
Sample Comment:
Collector:
Material Classification: ConglomerateAndOrBreccia
Primary Location Name:
Primary Location Type:
Location Description:
Locality:
Locality Description:
Country: Colombia
Provice:
County:
City Or Township:
Platform:
Platform ID:
Original Archival Institution:
Original Archival Contact:
Most Recent Archival Institution:
Most Recent Archival Contact:
| 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 |
| Inheritence |
|
|
|
|
|
12 |
98.4 |
|
|
|
256.4 |
79.4 |
79.4 |
0.1 |
|
|
|
|
|
|
|
| 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 |
33 |
2 |
|
|
|
|
9,94E+06 |
6,02E+05 |
|
4 |
|
|
|
126 |
160 |
250.5 |
69.7 |
|
|
|
|
|
|
|
|
|
|
|
|
| 2 |
81 |
5 |
|
|
|
|
1,63E+07 |
1,00E+06 |
|
6 |
|
|
|
210 |
179 |
256 |
109.7 |
|
|
|
|
|
|
|
|
|
|
|
|
| 3 |
50 |
3 |
|
|
|
|
1,51E+07 |
9,04E+05 |
|
4 |
|
|
|
189 |
202 |
258.5 |
88.8 |
|
|
|
|
|
|
|
|
|
|
|
|
| 4 |
51 |
3 |
|
|
|
|
1,54E+07 |
9,04E+05 |
|
4 |
|
|
|
189 |
202 |
263.5 |
90.6 |
|
|
|
|
|
|
|
|
|
|
|
|
| 5 |
59 |
4 |
|
|
|
|
1,78E+07 |
1,20E+06 |
|
4 |
|
|
|
252 |
238 |
231.9 |
90.1 |
|
|
|
|
|
|
|
|
|
|
|
|
| 6 |
54 |
4 |
|
|
|
|
1,08E+07 |
8,03E+05 |
|
6 |
|
|
|
168 |
159 |
212.6 |
82.1 |
|
|
|
|
|
|
|
|
|
|
|
|
| 7 |
30 |
4 |
|
|
|
|
1,20E+07 |
1,61E+06 |
|
3 |
|
|
|
336 |
317 |
119.3 |
43.7 |
|
|
|
|
|
|
|
|
|
|
|
|
| 8 |
44 |
3 |
|
|
|
|
1,33E+07 |
9,04E+05 |
|
4 |
|
|
|
189 |
202 |
228.1 |
77.6 |
|
|
|
|
|
|
|
|
|
|
|
|
| 9 |
109 |
7 |
|
|
|
|
1,09E+07 |
7,03E+05 |
|
12 |
|
|
|
147 |
108 |
248.3 |
120.2 |
|
|
|
|
|
|
|
|
|
|
|
|
| 10 |
79 |
4 |
|
|
|
|
1,59E+07 |
8,03E+05 |
|
6 |
|
|
|
168 |
159 |
308.5 |
122 |
|
|
|
|
|
|
|
|
|
|
|
|
| 11 |
61 |
4 |
|
|
|
|
1,22E+07 |
8,03E+05 |
|
6 |
|
|
|
168 |
159 |
239.6 |
93.3 |
|
|
|
|
|
|
|
|
|
|
|
|
| 12 |
42 |
1 |
|
|
|
|
1,69E+07 |
4,02E+05 |
|
3 |
|
|
|
84 |
137 |
583.7 |
117.4 |
|
|
|
|
|
|
|
|
|
|
|
|
| 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:26424.xml
