Massari, Francesco; Fellin, Maria Giuditta; Stefani, Cristina; Enkelmann, Eva; Dieni, Iginio; Sanchetti, Stefano: Lithic composition of Lanaittu Sandstone [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993673 (dataset in review)
Abstract:
The analyses of Lanaittu Sandstone (Campanian, Eastern Sardinia, Italy), recovered in a geognostic well in eastern Sardinia permit the reconstruction of the paleogeography of this area. This report contains petrographic, geo-, and thermochronologic data from arenites. In particular, Table S1 comprises main composition data, lithic content and heavy mineral association. In Tables S2 and S3 are reported the geo- and thermochronologic data of the two zircon samples analysed.
The Lanaittu Sandstone reveal an arkosic or arkosic-lithic composition, indicating provenance straddling the fields of the transitional continent and recycled orogen.
Lithic fragments consist predominantly of plutonic, gneissic, and low-grade metamorphic rocks with rare carbonates and other sedimentary components.
The heavy mineral assemblage includes rare glaucophane-crossite combined, up to 13% kyanite, and trace amounts of lawsonite, indicating an HP-LT metamorphic source.
U-Pb and (U-Th)/He dating of detrital zircons records cooling in the source region, with a minor but significant mid-Cretaceous population (22%) reflecting exhumation-related cooling.
Older zircon (U-Th)/He age populations indicate a contribution from upper-crustal rocks that mostly record Paleozoic cooling.
References:
Guenthner, W R; Reiners, Peter W; Ketcham, Richard A; Nasdala, Lutz; Giester, G (2013): Helium diffusion in natural zircon: Radiation damage, anisotropy, and the interpretation of zircon (U-Th)/He thermochronology. American Journal of Science, 313(3), 145-198, https://doi.org/10.2475/03.2013.01
Härtel, Birk; Enkelmann, Eva (2024): The daughter–parent plot: a tool for analyzing thermochronological data. Geochronology (GChron), 6(3), 429-448, https://doi.org/10.5194/gchron-6-429-2024
Härtel, Birk; Matthews, William A; Enkelmann, Eva (2023): Duluth Complex FC1 Apatite and Zircon: Reference Materials for ( U‐Th )/He Dating? Geostandards and Geoanalytical Research, 47(3), 669-681, https://doi.org/10.1111/ggr.12492
Jaffey, A H; Flynn, K F; Glendenin, L E; Bentley, W C; Essling, A M (1971): Precision measurement of half-lives and specific activities of 235U and 238U. Physical Review C, 4(5), 1889-1906, https://doi.org/10.1103/PhysRevC.4.1889
Mattinson, James M (1987): U-Pb ages of zircons: A basic examination of error propagation. Chemical Geology: Isotope Geoscience section, 66(1-2), 151-162, https://doi.org/10.1016/0168-9622(87)90037-6
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
Schmitz, Mark D; Bowring, Samuel A (2001): U-Pb zircon and titanite systematics of the Fish Canyon Tuff: an assessment of high-precision U-Pb geochronology and its application to young volcanic rocks. Geochimica et Cosmochimica Acta, 65(15), 2571-2587, https://doi.org/10.1016/S0016-7037(01)00616-0
Vermeesch, Pieter (2019): Exploratory Analysis of Provenance Data Using R and the Provenance Package. Minerals, 9(3), 193, https://doi.org/10.3390/min9030193
Coverage:
Latitude: 40.259200 * Longitude: 9.501400
Date/Time Start: 1989-11-30T00:00:00 * Date/Time End: 1989-11-30T00:00:00
Minimum DEPTH, sediment/rock: 9.84 m * Maximum DEPTH, sediment/rock: 27.62 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample ID | Sample ID | Massari, Francesco | |||
| 2 | Sample code/label | Sample label | Massari, Francesco | Field label | ||
| 3 | DEPTH, sediment/rock | Depth sed | m | Massari, Francesco | Geocode | |
| 4 | Fragments, metamorphic rocks | Metam rock fragm | % | Massari, Francesco | Lowgrade | |
| 5 | Plutonic fragments | Plutonic fragm | % | Massari, Francesco | And/or gneissic rock fragmen | |
| 6 | Volcanic fragments | Volc fragm | % | Massari, Francesco | Volcanic rock fragment | |
| 7 | Sedimentary fragments | Sed fragm | % | Massari, Francesco |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
72 data points