Sample Name: TF_18 (AFT)
IGSN: IEATG1618
Laboratory: Laboratory of thermochronology of the Università Degli Study di Padova (Italy).
Analyst: Antonella Galetto, with Prof. Massimiliano Zattin supervision
Mineral: APATITE
Dosimeter Glass: CN5
Dosimeter Glass U ppm: 12.5
Irradiation: Radiation Center of Oregon State University
Count Date: 2016
Locality: Northern Neuquén province, Argentina
Rock Type: Sandstone
Rock Age: Kimmeridgian-Tithonian
Acquisition system:
Magnification:
Radiation Facility:
Total Thermal Neutron Fluence: 9.00E+15 n/(cm2)
Position in Irradiation Canister (#):
Area of Graticule Square:
No. of Crystals Counted: 24
Zeta Factor: 342.92
Zeta Factor Error (1s): ± 8.66
Rho d:
Rho d (% Relative Error): 1.04E+06
N d: 6504.9
Geometry factor (for EDM and Zeta ICPMS methods):
Etchant:
Etching Conditions: 5 N (HNO3) for 21 seconds at 21°C
Method - U:
ICPMS Model:
Laser Model and Type:
Instrumental Method References:
U Calibration Standard: Fish Canyon; Durango
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: TF_18
Sample Description: Sandstone
GeoObject Type: Individual Sample
Geoobject Classification:
Collection Method:
Material: Rock
Latitude:
Longitude:
Sample Comment:
Collector:
Material Classification:
Primary Location Name:
Primary Location Type:
Location Description:
Locality:
Locality Description:
Country: Argentina
Provice: Neuquén
County:
City Or Township:
Platform:
Platform ID:
Original Archival Institution:
Original Archival Contact:
Most Recent Archival Institution:
Most Recent Archival Contact: