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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

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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).
Keyword(s):
gross composition; Petrographic analysis of the arenite; staining
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:
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
Minimum DEPTH, sediment/rock: 9.84 m * Maximum DEPTH, sediment/rock: 27.62 m
Event(s):
Lanaittu_core * Latitude: 40.259200 * Longitude: 9.501400 * Date/Time: 1994-01-01T00:00:00 * Penetration: 27.62 m * Location: Eastern Sardinia * Method/Device: Drilling/coring
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Sample code/labelSample labelSanchetti, Stefano
2 DEPTH, sediment/rockDepth sedmSanchetti, StefanoGeocode
3 Quartz, monocrystallineMonoQz%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
4 Quartz, polycrystallinePolyQz%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x](>0.0625 mm)
5 Quartz, polycrystallinePolyQz%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x](<0.0625 mm)
6 QuartzQz%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]In low-grade metamorphic rock fragment
7 QuartzQz%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]In plutonic and/or gneissic rock fragment
8 Replacement, calciteReplace calcite%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]Replacement on monocrystalline quartz
9 Replacement, calciteReplace calcite%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]Replacement on quartz in rock fragment
10 KalifeldsparKfs%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]monocrystalline grain
11 KalifeldsparKfs%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]In plutonic and/or gneissic rock fragmen
12 Replacement, calciteReplace calcite%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]Replacement on K-feldspar (monocrystalline)
13 Replacement, calciteReplace calcite%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]Replacement on K-feldspar in rock fragment
14 PlagioclasePl%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]Monocrystalline grain
15 PlagioclasePl%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]In low-grade metamorphic rock fragment
16 PlagioclasePl%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]In plutonic and/or gneissic rock fragment
17 Replacement, calciteReplace calcite%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]Replacement on plagioclase (monocrystalline)
18 Replacement, calciteReplace calcite%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]Replacement on plagioclase in rock fragment
19 Volcanic rock, fragments, acidicVolc rock fragm acidic%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
20 Volcanic rock, fragments, intermediateVolc rock fragm intermed%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
21 Metamorphic rock, fragments, low-gradeMetam rock fragm l-g%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
22 SlateSla%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
23 Mica+ChloriteMica+Chlo%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
24 Mica+ChloriteMica+Chlo%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]In plutonic/gneissic rock fragment
25 Mica+ChloriteMica+Chlo%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]In low-grade metamorphic rock fragment
26 Minerals, otherMin other%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
27 Particles, greenParticles gr%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
28 DolostoneDolostone%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]monocrystalline grains
29 BioclastsBioclasts%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
30 Remains, vegetativeRemains veg%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
31 Siliciclastic matrixSiliciclastic mat%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
32 Carbonate matrixCarbonate mat%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
33 Calcite cementCal cement%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]Spar and microspar
34 CalciteCal%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]Patchy
35 Replacement, calciteReplace calcite%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]Replacement on undetermined grain
36 Cement, otherCement oth%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
37 GrainsGrains%Sanchetti, StefanoLight 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

Data

Download dataset as tab-delimited text — use the following character encoding:

1 
Sample label		2 
Depth sed [m]		3 
MonoQz [%]		4 
PolyQz [%]
((>0.0625 mm))		5 
PolyQz [%]
((<0.0625 mm))		6 
Qz [%]
(In low-grade metamorphic rock...)		7 
Qz [%]
(In plutonic and/or gneissic r...)		8 
Replace calcite [%]
(Replacement on monocrystallin...)		9 
Replace calcite [%]
(Replacement on quartz in rock...)		10 
Kfs [%]
(monocrystalline grain)		11 
Kfs [%]
(In plutonic and/or gneissic r...)		12 
Replace calcite [%]
(Replacement on K-feldspar (mo...)		13 
Replace calcite [%]
(Replacement on K-feldspar in ...)		14 
Pl [%]
(Monocrystalline grain)		15 
Pl [%]
(In low-grade metamorphic rock...)		16 
Pl [%]
(In plutonic and/or gneissic r...)		17 
Replace calcite [%]
(Replacement on plagioclase (m...)		18 
Replace calcite [%]
(Replacement on plagioclase in...)		19 
Volc rock fragm acidic [%]		20 
Volc rock fragm intermed [%]		21 
Metam rock fragm l-g [%]		22 
Sla [%]		23 
Mica+Chlo [%]		24 
Mica+Chlo [%]
(In plutonic/gneissic rock fra...)		25 
Mica+Chlo [%]
(In low-grade metamorphic rock...)		26 
Min other [%]		27 
Particles gr [%]		28 
Dolostone [%]
(monocrystalline grains)		29 
Bioclasts [%]		30 
Remains veg [%]		31 
Siliciclastic mat [%]		32 
Carbonate mat [%]		33 
Cal cement [%]
(Spar and microspar)		34 
Cal [%]
(Patchy)		35 
Replace calcite [%]
(Replacement on undetermined g...)		36 
Cement oth [%]		37 
Grains [%]
(Undetermined/altered)
La19.8438.02.01.21.86.411.01.21.43.00.20.60.41.04.23.01.20.80.62.412.82.84.0
La29.9428.61.00.41.82.03.80.29.63.20.84.00.21.60.21.01.40.41.40.20.64.825.26.80.40.4
La312.4330.42.20.61.23.24.00.27.62.40.25.80.22.20.24.62.81.81.41.01.23.219.63.40.6
La412.5420.62.80.81.22.88.00.89.82.22.00.23.20.22.00.80.20.42.62.20.62.01.00.42.84.88.413.43.40.4
La513.1024.41.80.80.83.24.68.22.41.00.26.22.80.41.01.80.40.20.61.24.226.45.61.8
La614.8125.02.20.22.43.05.410.42.40.64.40.41.80.21.85.02.01.01.25.620.43.60.80.2
La715.0227.63.00.41.84.06.00.48.24.43.63.40.20.41.40.61.00.20.64.822.84.80.4
La816.5829.81.60.41.62.24.60.26.40.60.24.21.20.40.20.43.41.41.41.62.427.07.21.40.2
La917.7815.81.20.80.81.85.60.27.63.00.23.60.43.20.87.63.21.80.22.08.87.014.48.01.20.8
La1020.7622.21.20.40.81.83.00.45.40.80.44.61.01.21.02.62.02.61.20.84.64.830.83.62.60.2
La1120.8925.02.00.60.61.29.68.60.81.24.80.40.40.61.21.41.41.81.83.41.60.21.62.412.20.29.84.80.4
La1221.7726.01.40.81.61.65.00.26.41.00.64.01.60.81.42.61.21.60.40.41.610.221.66.60.80.6
La1321.8827.80.20.41.84.04.80.27.82.60.40.24.61.80.60.20.61.61.22.80.60.85.822.84.81.20.4
La1421.9821.41.80.61.02.82.49.82.65.00.42.40.81.43.01.05.60.40.22.85.422.84.61.40.4
La1522.4930.02.01.21.03.65.29.82.41.45.60.61.40.61.23.43.01.00.40.65.213.06.21.00.2
La1623.5026.61.41.60.48.20.45.01.61.60.25.00.81.40.80.44.22.41.60.60.22.82.022.25.62.80.2
La1725.6018.61.02.01.23.40.48.43.00.40.25.80.82.20.21.01.21.80.60.65.86.422.08.24.20.6
La1825.7425.81.60.81.84.22.60.29.42.60.26.20.62.20.62.43.60.60.22.83.819.27.01.40.2
La1925.9823.81.80.82.83.82.20.87.83.04.80.22.20.60.23.62.41.81.00.61.64.820.27.81.20.2
La2027.5025.62.40.25.43.47.20.24.61.60.65.60.22.21.43.22.63.60.22.81.20.21.81.24.00.26.89.22.4
La2127.6231.41.40.81.03.84.00.27.21.60.66.02.20.43.82.01.22.41.22.82.218.83.60.60.8