Citation:

PANGAEA.995329

Name: Detrital zircon geochronologic analysis of the Lanaittu Sandstone in Eastern Sardinia, Italy
Published: 2026-06-23
License: https://creativecommons.org/licenses/by/4.0/
Keywords: detrital zircon; Laser Ablation; U-Pb geochronology

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Published: 2026-06-23 • DOI registered: 2026-06-23

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Abstract:

The data set comprises the results of the U-Pb dating analysis of detrital zircons from two samples (177-1 and 177-2) from the middle-upper Campanian turbiditic Lanaittu Sandstone. The samples were cored along a geognostic borehole in the Lanaittu valley in eastern Sardinia. The analysis was performed following the procedure as in Pickering et al. (2020) and Härtel et al. (2026) using a Resonetics Resolution LR 193 nm excimer laser attached to an inductively coupled plasma mass spectrometers Agilent 7700. The laser ablation system was equipped with a M50 Cell, which was flushed with a helium gas flow of 700 L/min and nitrogen gas flow of 4 L/min. The ablation spot size was set to 33 µm, the ablation time to 20 s, and the repetition rate to 5 Hz. The background was measured for 20 s. The same system setting was used to measure both the validation references and the samples.

Keyword(s):

detrital zircon; Laser Ablation; U-Pb geochronology

Supplement to:

Massari, Francesco; Fellin, Maria Giuditta; Stefani, Cristina; Enkelmann, Eva; Dieni, Iginio; Sanchetti, Stefano (accepted): Exhumed eo-Alpine high-pressure rocks fed Campanian turbidites in eastern Sardinia. Geochemistry, Geophysics, Geosystems

References:

Härtel, Birk; Enkelmann, Eva; Whelan, Elisha (2026): Combined zircon U/Pb-(U-Th)/He-Raman dating. Chemical Geology, 713, 123435, https://doi.org/10.1016/j.chemgeo.2026.123435

Pickering, Julia; Matthews, William A; Enkelmann, Eva; Guest, Bernard; Sykes, Chris; Koblinger, Brett M (2020): Laser ablation (U-Th-Sm)/He dating of detrital apatite. Chemical Geology, 548, 119683, https://doi.org/10.1016/j.chemgeo.2020.119683

Funding:

Natural Sciences and Engineering Research Council (NSERC), grant/award no. 03863: RGPIN-2024

Coverage:

Latitude: 40.259200 * Longitude: 9.501400

Date/Time Start: 1994-01-01T00:00:00 * Date/Time End: 1994-01-01T00:00:00

Event(s):

Lanaittu_177-1 (177-1) * Latitude: 40.259200 * Longitude: 9.501400 * Date/Time: 1994-01-01T00:00:00 * Penetration: 12.4 m * Location: Eastern Sardinia * Method/Device: Drilling/coring

Lanaittu_177-2 (177-2) * Latitude: 40.259200 * Longitude: 9.501400 * Date/Time: 1994-01-01T00:00:00 * Penetration: 27.5 m * Location: Eastern Sardinia * Method/Device: Drilling/coring

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Enkelmann, Eva
2	Sample code/label	Sample label		Enkelmann, Eva		Uranium-Lead Laser Ablation Label
3	Sample code/label 2	Sample label 2		Enkelmann, Eva		Spot number
4	Lead-207	207Pb	cps	Enkelmann, Eva	Laser ablation system, Resonetics Resolution LR 193 nm [cell M50]; coupled with inductively coupled plasma mass spectrometer, Agilent, 7700
5	Lead-206	206Pb	cps	Enkelmann, Eva	Laser ablation system, Resonetics Resolution LR 193 nm [cell M50]; coupled with inductively coupled plasma mass spectrometer, Agilent, 7700
6	Uranium	U	µg/g	Enkelmann, Eva	Laser ablation system, Resonetics Resolution LR 193 nm [cell M50]; coupled with inductively coupled plasma mass spectrometer, Agilent, 7700	Concentration uncertainty about 5%
7	Uranium/Thorium ratio	U/Th		Enkelmann, Eva	Laser ablation system, Resonetics Resolution LR 193 nm [cell M50]; coupled with inductively coupled plasma mass spectrometer, Agilent, 7700
8	Uranium-238/Lead-206 ratio	238U/206Pb		Enkelmann, Eva	Laser ablation system, Resonetics Resolution LR 193 nm [cell M50]; coupled with inductively coupled plasma mass spectrometer, Agilent, 7700	Data not corrected for common lead
9	Uranium-238/Lead-206 ratio, uncertainty, relative	238U/206Pb unc rel	%	Enkelmann, Eva	Laser ablation system, Resonetics Resolution LR 193 nm [cell M50]; coupled with inductively coupled plasma mass spectrometer, Agilent, 7700	Includes all random uncertainties (sm, ε), represents two standard deviations
10	Lead-207/Lead-206 ratio	207Pb/206Pb		Enkelmann, Eva	Laser ablation system, Resonetics Resolution LR 193 nm [cell M50]; coupled with inductively coupled plasma mass spectrometer, Agilent, 7700	Data not corrected for common lead
11	Lead-207/Lead-206 ratio, uncertainty, relative	207Pb/206Pb unc rel	%	Enkelmann, Eva	Laser ablation system, Resonetics Resolution LR 193 nm [cell M50]; coupled with inductively coupled plasma mass spectrometer, Agilent, 7700	Includes all random uncertainties (sm, ε), represents two standard deviations
12	Lead-207/Uranium-235 ratio	207Pb/235U		Enkelmann, Eva	Laser ablation system, Resonetics Resolution LR 193 nm [cell M50]; coupled with inductively coupled plasma mass spectrometer, Agilent, 7700	Data not corrected for common lead
13	Lead-207/Uranium-235 ratio, uncertainty, relative	207Pb/235U unc rel	%	Enkelmann, Eva	Laser ablation system, Resonetics Resolution LR 193 nm [cell M50]; coupled with inductively coupled plasma mass spectrometer, Agilent, 7700	Includes all random uncertainties (sm, ε), represents two standard deviations
14	Lead-206/Uranium-238 ratio	206Pb/238U		Enkelmann, Eva	Laser ablation system, Resonetics Resolution LR 193 nm [cell M50]; coupled with inductively coupled plasma mass spectrometer, Agilent, 7700	Data not corrected for common lead
15	Lead-206/Uranium-238 ratio, uncertainty, relative	206Pb/238U unc rel	%	Enkelmann, Eva	Laser ablation system, Resonetics Resolution LR 193 nm [cell M50]; coupled with inductively coupled plasma mass spectrometer, Agilent, 7700	Includes all random uncertainties (sm, ε), represents two standard deviations
16	Correlation coefficient, isotope ratio error	Rho		Enkelmann, Eva	Laser ablation system, Resonetics Resolution LR 193 nm [cell M50]; coupled with inductively coupled plasma mass spectrometer, Agilent, 7700	Data not corrected for common lead
17	Age, mineral	Age mineral	Ma	Enkelmann, Eva	Age, Lead-207/Lead-206
18	Age, mineral, uncertainty	Age mineral unc	±	Enkelmann, Eva	Age, Lead-207/Lead-206	Includes all random uncertainties (sm, ε), represents two standard deviations
19	Age, mineral, uncertainty	Age mineral unc	±	Enkelmann, Eva	Age, Lead-207/Lead-206	Inlcudes all random and systematic uncertainties (sm, ε, ε', sy, λ), represents two standard deviations
20	Age, mineral	Age mineral	Ma	Enkelmann, Eva	Age, Lead-206/Uranium-238
21	Age, mineral, uncertainty	Age mineral unc	±	Enkelmann, Eva	Age, Lead-206/Uranium-238	Includes all random uncertainties (sm, ε), represents two standard deviations
22	Age, mineral, uncertainty	Age mineral unc	±	Enkelmann, Eva	Age, Lead-206/Uranium-238	Inlcudes all random and systematic uncertainties (sm, ε, ε', sy, λ), represents two standard deviations
23	Age, mineral	Age mineral	Ma	Enkelmann, Eva	Age, Lead-207/Lead-235
24	Age, mineral, uncertainty	Age mineral unc	±	Enkelmann, Eva	Age, Lead-207/Lead-235	Includes all random uncertainties (sm, ε), represents two standard deviations
25	Age, mineral, uncertainty	Age mineral unc	±	Enkelmann, Eva	Age, Lead-207/Lead-235	Inlcudes all random and systematic uncertainties (sm, ε, ε', sy, λ), represents two standard deviations
26	Age, mineral	Age mineral	Ma	Enkelmann, Eva	Concordia age	Concordance calculated as (206Pb/238U date/207Pb-206Pb Age)*100
27	Age, mineral, uncertainty	Age mineral unc	±	Enkelmann, Eva	Concordia age	Inlcudes all random and systematic uncertainties (sm, ε, ε', sy, λ), represents two standard deviations
28	Probability	Prob	%	Enkelmann, Eva	Laser ablation system, Resonetics Resolution LR 193 nm [cell M50]; coupled with inductively coupled plasma mass spectrometer, Agilent, 7700
29	Concordance	Conc	%	Enkelmann, Eva	Laser ablation system, Resonetics Resolution LR 193 nm [cell M50]; coupled with inductively coupled plasma mass spectrometer, Agilent, 7700	Concordance calculated as (206Pb/238U date/207Pb-206Pb Age)*100
30	Comment	Comment		Enkelmann, Eva		CL: analysis affected by common lead; SL: sloping 6/8 or 7/6 date, suggestive of date heterogeneity;
31	Age, mineral	Age mineral	Ma	Enkelmann, Eva	Laser ablation system, Resonetics Resolution LR 193 nm [cell M50]; coupled with inductively coupled plasma mass spectrometer, Agilent, 7700	Accepted dates have probability of concordance >1%
32	Age, mineral, uncertainty	Age mineral unc	±	Enkelmann, Eva	Laser ablation system, Resonetics Resolution LR 193 nm [cell M50]; coupled with inductively coupled plasma mass spectrometer, Agilent, 7700	Includes all random uncertainties (sm, ε), represents two standard deviations
33	Age, mineral, uncertainty	Age mineral unc	±	Enkelmann, Eva	Laser ablation system, Resonetics Resolution LR 193 nm [cell M50]; coupled with inductively coupled plasma mass spectrometer, Agilent, 7700	Inlcudes all random and systematic uncertainties (sm, ε, ε', sy, λ), represents two standard deviations

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

7199 data points

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