This sample belongs to: Gonzalo Ronda

Sample Details
Sample Name: TOR4
IGSN: IEGMR0017
Laboratory: Dalhousie Noble Gas
Analyst: Roman Kislytsin
Instrumental Method - He:
Instrumental Method Reference - He:
Instrumental Method - U-Th-Sm:
Instrumental Method Reference - U-Th-Sm:
Alpha Ejection Correction Method:
Alpha Ejection Correction Method Reference:
Mineral: ZIRCON
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:
230Th Decay Constant:
230Th Decay Constant Error:
238U/235U: 137.88
Decay Constant Reference: 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.
147Sm Decay Constant: 6.54E-12
147Sm Decay Constant Error:
147Sm Decay Constant Reference: Lugmair, G.W., and Marti, K., 1978, Lunar initial 143Nd/144Nd: differential evolution of the lunar crust and mantle: Earth and Planetary Science Letter, v. 39, p. 349-357.
Decay Constant Comment:

Sample Metadata
Sample ID: TOR4
Sample Description:
GeoObject Type: Grab
Geoobject Classification:
Collection Method: Manual
Material: Rock
Latitude: -47.81824
Longitude: -73.45842
Sample Comment:
Collector: Gonzalo Ronda
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: Universidad de Buenos Aires
Most Recent Archival Contact: gonzaloronda@gmail.com

Age(s)
Analysis Purpose Value Error Age Type MSWD Age Error Systematic Included Analyses Comment
Cooling 16.45 4.41 average age with standard error

Data Reduction Parameters
Spike Type U-Th-Sm:
Spike Type He:
Standard Mineral:
Standard Mineral Reference:
Standard True Age:
Standard True Age Error:
Standard Measured Age:
Standard Measured Age Error:
Data Reduction Comment:

Fraction(s)
Fraction Name Mineral Age, Ma err., Ma U (ppm) Th (ppm) 147Sm (ppm) Th/U He (nmol/g) Mass (ug) Ft
zTOR4-1 zircon 23.319032669067 0.09222336858511 1283.3663330078 1732.5962890625 35.544982910156 1.3500403154584 163.888671875 7.540075302124 0.76895391941071
zTOR4-2 zircon 15.238516807556 0.06670930981636 1488.2604980469 939.35908203125 14.282231140137 0.63117920771533 104.75215148926 5.1199011802673 0.74527662992477
zTOR4-3 zircon 11.644509315491 0.050441209226847 1101.0518798828 776.97133789063 14.527716064453 0.70566278672838 59.627353668213 5.1625051498413 0.73918843269348
zTOR4-4 zircon 14.325434684753 0.061272047460079 791.39593505859 614.62421875 8.4254867553711 0.77663302466229 55.711517333984 7.0396695137024 0.76980292797089
zTOR4-5 zircon 17.739831924438 0.075253553688526 1082.3355712891 894.27490234375 11.790558624268 0.82624550653793 89.458061218262 3.8137331008911 0.72257351875305
filename:26066.xml
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