Massari, Francesco; Fellin, Maria Giuditta; Stefani, Cristina; Enkelmann, Eva; Dieni, Iginio; Sanchetti, Stefano (2026): Gross composition of the Lanaittu Sandstone in Eastern Sardinia, Italy [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.995318
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Published: 2026-06-23 • DOI registered: 2026-06-23
Abstract:
The Lanaittu Sandstone (middle-upper Campanian, Eastern Sardinia, Italy) was analyzed using the point-counting technique to determine the composition and provenance of the terrigenous detritus. 500 points were analyzed in each thin section, which had been stained to distinguish K-feldspar and carbonates. Analyses followed the Gazzi-Dickinson method (Ingersoll et al., 1984). Several grain categories were distinguished, including rock fragments. The petrographic analyses were conducted in 1994 at the Geoscience Department of the University of Padova, by Stefano Sanchetti, using a Carl Zeiss Winkel-Standard Optical microscope with KPL W 12.5X oculars. The objective magnifications were 5x, 10x, 25x, and 40x. The analysis reveals an arkosic or arkosic-lithic composition (Folk, 1980), indicating provenance straddling the fields of the transitional continent and recycled orogen (Dickinson, 1985).
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:
Dickinson, William R (1985): Interpreting Provenance Relations from Detrital Modes of Sandstones. In: Zuffa, GG (eds.), Provenance of Arenites, Springer Netherlands, Dordrecht, 333-361, https://doi.org/10.1007/978-94-017-2809-6_15
Folk, Robert Louis (1980): Petrology of sedimentary rocks. Hempill Publishing Company, Austin, 1-170
Ingersoll, Raymond V; Bullard, Thomas F; Ford, Thomas F; Grimm, Joel P; Pickle, John D; Sares, Steven W (1984): The Effect of Grain Size on Detrital Modes: A Test of the Gazzi-Dickinson Point-Counting Method. Journal of Sedimentary Research, Vol. 54, https://doi.org/10.1306/212F83B9-2B24-11D7-8648000102C1865D
Funding:
Coverage:
Latitude: 40.259200 * Longitude: 9.501400
Date/Time Start: 1994-01-01T00:00:00 * Date/Time End: 1994-01-01T00:00:00
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 code/label | Sample label | Sanchetti, Stefano | |||
| 2 | DEPTH, sediment/rock | Depth sed | m | Sanchetti, Stefano | Geocode | |
| 3 | Quartz, monocrystalline | MonoQz | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | |
| 4 | Quartz, polycrystalline | PolyQz | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | (>0.0625 mm) |
| 5 | Quartz, polycrystalline | PolyQz | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | (<0.0625 mm) |
| 6 | Quartz | Qz | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | In low-grade metamorphic rock fragment |
| 7 | Quartz | Qz | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | In plutonic and/or gneissic rock fragment |
| 8 | Replacement, calcite | Replace calcite | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | Replacement on monocrystalline quartz |
| 9 | Replacement, calcite | Replace calcite | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | Replacement on quartz in rock fragment |
| 10 | Kalifeldspar | Kfs | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | monocrystalline grain |
| 11 | Kalifeldspar | Kfs | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | In plutonic and/or gneissic rock fragmen |
| 12 | Replacement, calcite | Replace calcite | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | Replacement on K-feldspar (monocrystalline) |
| 13 | Replacement, calcite | Replace calcite | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | Replacement on K-feldspar in rock fragment |
| 14 | Plagioclase | Pl | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | Monocrystalline grain |
| 15 | Plagioclase | Pl | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | In low-grade metamorphic rock fragment |
| 16 | Plagioclase | Pl | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | In plutonic and/or gneissic rock fragment |
| 17 | Replacement, calcite | Replace calcite | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | Replacement on plagioclase (monocrystalline) |
| 18 | Replacement, calcite | Replace calcite | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | Replacement on plagioclase in rock fragment |
| 19 | Volcanic rock, fragments, acidic | Volc rock fragm acidic | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | |
| 20 | Volcanic rock, fragments, intermediate | Volc rock fragm intermed | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | |
| 21 | Metamorphic rock, fragments, low-grade | Metam rock fragm l-g | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | |
| 22 | Slate | Sla | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | |
| 23 | Mica+Chlorite | Mica+Chlo | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | |
| 24 | Mica+Chlorite | Mica+Chlo | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | In plutonic/gneissic rock fragment |
| 25 | Mica+Chlorite | Mica+Chlo | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | In low-grade metamorphic rock fragment |
| 26 | Minerals, other | Min other | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | |
| 27 | Particles, green | Particles gr | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | |
| 28 | Dolostone | Dolostone | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | monocrystalline grains |
| 29 | Bioclasts | Bioclasts | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | |
| 30 | Remains, vegetative | Remains veg | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | |
| 31 | Siliciclastic matrix | Siliciclastic mat | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | |
| 32 | Carbonate matrix | Carbonate mat | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | |
| 33 | Calcite cement | Cal cement | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | Spar and microspar |
| 34 | Calcite | Cal | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | Patchy |
| 35 | Replacement, calcite | Replace calcite | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | Replacement on undetermined grain |
| 36 | Cement, other | Cement oth | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | |
| 37 | Grains | Grains | % | Sanchetti, Stefano | Light microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x] | Undetermined/altered |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
542 data points