de.pangaea.dataset995336 und dataset PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact 2026-06-23T13:03:31Z https://doi.pangaea.de/10.1594/PANGAEA.995336 <gco:CharacterString>Detrital zircon geo-and thermochronology of the Lanaittu Sandstone in Eastern Sardinia, Italy</gco:CharacterString> 2026-06-23T13:02:36 publication https://doi.org/10.1594/PANGAEA.995336 Massari, Francesco
francesco.massari@unipd.it
author Fellin, Maria Giuditta
giuditta.fellin@eaps.ethz.ch
https://orcid.org/0000-0003-3545-3512 information author Stefani, Cristina
cristina.stefani@unipd.it
https://orcid.org/0000-0002-7299-0475 information author Enkelmann, Eva
eva.enkelmann@ucalgary.ca
author Dieni, Iginio
iginiodieni@gmail.com
author Sanchetti, Stefano
ssanchetti@spevetro.it
author PANGAEA
info@pangaea.de
https://www.pangaea.de/ information publisher tableDigital 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. completed Enkelmann, Eva
eva.enkelmann@ucalgary.ca
principalInvestigator detrital zircon double dating U-Pb and (U-Th)/He dating theme <gco:CharacterString>PANGAEA Keyword List</gco:CharacterString> 1995-01-01 creation PANGAEA
info@pangaea.de
https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation 9.5014 9.5014 40.2592 40.2592 1994-01-01T00:00:00 1994-01-01T00:00:00 Event label thematicClassification Sample code/label thematicClassification Uranium-Lead Laser Ablation Label Spot identification thematicClassification Helium laser ablation Uranium physicalMeasurement see description in data abstract µg/g µg/g Uranium, uncertainty physicalMeasurement see description in data abstract; Represents two standard deviation ± ± Thorium physicalMeasurement see description in data abstract µg/g µg/g Thorium, uncertainty physicalMeasurement see description in data abstract; Represents two standard deviation ± ± Uranium, effective physicalMeasurement see description in data abstract µg/g µg/g Uranium, effective, uncertainty physicalMeasurement see description in data abstract; Represents two standard deviation ± ± Age, mineral physicalMeasurement Age, (Uranium-Thorium)/Helium Ma Ma Age, mineral, uncertainty physicalMeasurement Age, (Uranium-Thorium)/Helium; Represents two standard deviation ± ± Age, mineral physicalMeasurement Age, Uranium-Lead, concordia Ma Ma Age, mineral, uncertainty physicalMeasurement Age, Uranium-Lead, concordia; Represents two standard deviation ± ± Concordance physicalMeasurement Probability % % Age, mineral physicalMeasurement Age, Uranium-Lead; Accepted Ma Ma Age, mineral, uncertainty physicalMeasurement Age, Uranium-Lead; Accepted, represents two standard deviation ± ± Comment thematicClassification SL: sloping 6/8 or 7/6, suggestive of age heterogeneity; CL: analysis affected by common Pb, DO: pit drilled out of grain; UNC: high He uncertainty >30% (2s) text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.995336?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: 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 1994-01-01T00:00:00 EVENT LABEL: 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 1994-01-01T00:00:00 Supplement to <gco:CharacterString>Exhumed eo-Alpine high-pressure rocks fed Campanian turbidites in eastern Sardinia</gco:CharacterString> Massari, Francesco
francesco.massari@unipd.it
author Fellin, Maria Giuditta
giuditta.fellin@eaps.ethz.ch
https://orcid.org/0000-0003-3545-3512 information author Stefani, Cristina
cristina.stefani@unipd.it
https://orcid.org/0000-0002-7299-0475 information author Enkelmann, Eva
eva.enkelmann@ucalgary.ca
author Dieni, Iginio
iginiodieni@gmail.com
author Sanchetti, Stefano
ssanchetti@spevetro.it
author documentHardcopy Geochemistry, Geophysics, Geosystems