PANGAEA_995336
Detrital zircon geo-and thermochronology of the Lanaittu Sandstone in Eastern Sardinia, Italy
Massari, Francesco; Fellin, Maria Giuditta; Stefani, Cristina; Enkelmann, Eva; Dieni, Iginio; Sanchetti, Stefano
Detrital zircon geo-and thermochronology of the Lanaittu Sandstone in Eastern Sardinia, Italy
2026-06-23
PANGAEA
Dataset
https://doi.pangaea.de/10.1594/PANGAEA.995336
Investigator
Eva
Enkelmann
eva.enkelmann@ucalgary.ca
Earth Science
Event label
Sample code/label
Spot identification
Uranium
Uranium, uncertainty
Thorium
Thorium, uncertainty
Uranium, effective
Uranium, effective, uncertainty
Age, mineral
Age, mineral, uncertainty
Concordance
Comment
geoscientificInformation
177-1
177-2
detrital zircon
double dating
Drilling/coring
Lanaittu_177-1
Lanaittu_177-2
U-Pb and (U-Th)/He dating
see description in data abstract
Age, (Uranium-Thorium)/Helium
Age, Uranium-Lead, concordia
Age, Uranium-Lead
1994-01-01
1994-01-01
Complete
40.2592
40.2592
9.5014
9.5014
unrestricted
CC-BY-4.0: Creative Commons Attribution 4.0 International
English
PANGAEA
Data Publisher for Earth & Environmental Science
https://www.pangaea.de/
Data Center Contact
Michael
Diepenbroek
info@pangaea.de
Leobener Str.
Bremen
Bremen
28359
Germany
online
3354 data points
text/tab-separated-values
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
The data set comprises pairs of laser ablation U-Pb and (U-Th)/He double dating of detrital zircons from two samples (177-1 and 177-2) of middle-upper Campanian turbiditic sandstone deposits. The samples were cored along a geognostic borehole in the Lanaittu valley in eastern Sardinia. We combine zircon U-Pb geochronology with (U-Th)/He thermochronology to determine the time of grain formation and cooling through the upper crust. Together, these data provide a more powerful provenance signal than each of these methods alone. The two samples consist of detrital zircon U-Pb dates that are Permian and older, and show no significant differences between them. The acceptable U-Pb dates range from 223 ± 8 Ma (2σ) to 2490 ± 42 Ma and are much older than the middle-late Campanian depositional age of the dated samples. The detrital zircon U-Pb date distributions are consistent with a provenance from the Sardinia block or from the continental crust of an Alkapeca continental fragment, such as a Calabrian terrane/subterrane, or from both sources. The detrital zircon (U-Th)/He dates are also all older than the depositional age of the sandstones. Their distribution is continuous and rather simple with most dates (78 %) being Paleozoic to Jurassic forming a population centered around 261 ± 5 Ma, while the remaining dates (22%) form a population centered at 100 ± 4 Ma. The detrital zircon (U-Th)/He dates suggest a source area exposing rocks with heterogeneous thermal histories—some having experienced rapid cooling during the Cretaceous, and most others resided in the upper crust since the Paleozoic–early Mesozoic. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.995336"!
DIF
9.4
2026-06-23
2026-06-23