Sample Name: 15SACZ-07
IGSN: IE232000N
Laboratory: Grenoble Alpes
Analyst: Villamizar-Escalante Nicolas
Mineral: Apatite
Dosimeter Glass: IRMM540R
Dosimeter Glass U ppm: 15
Irradiation: 5-2016
Count Date:
Locality: Colombia
Rock Type: Igneous rock
Rock Age: 206
Acquisition system: Olympus BX51
Magnification: 1250x
Radiation Facility: FRM II Munich
Total Thermal Neutron Fluence: 8 ×10^15 n/cm2
Position in Irradiation Canister (#): 10
Area of Graticule Square: 6.39E-07
No. of Crystals Counted: 23
Zeta Factor: 249,55
Zeta Factor Error (1s): 12.52
Rho d: 1.03E+06
Rho d (% Relative Error): 1.09
N d: 4262
Geometry factor (for EDM and Zeta ICPMS methods): 0.5
Etchant: 5.5 molar HNO3
Etching Conditions: 21°C
Method - U:
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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-07
Sample Description:
GeoObject Type: Individual Sample
Geoobject Classification: Felsic
Collection Method:
Material: Rock
Latitude: 6.924298
Longitude: -72.90512
Sample Comment:
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Material Classification: Felsic
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