Sample Name: 15SACZ-07
IGSN: IE2320006
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: Plutonic rock
Rock Age: 206
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 (#): 13
Area of Graticule Square: 8.30E-07
No. of Crystals Counted: 17
Zeta Factor: 139.15
Zeta Factor Error (1s): 4.29
Rho d: 2.37E+05
Rho d (% Relative Error): 1.28
N d: 3930
Geometry factor (for EDM and Zeta ICPMS methods): 0.5
Etchant: NaOH-KOH
Etching Conditions: 228°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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