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Massari, Francesco; Fellin, Maria Giuditta; Stefani, Cristina; Enkelmann, Eva; Dieni, Iginio; Sanchetti, Stefano (2026): Heavy mineral composition of the Lanaittu Sandstone in Eastern Sardinia, Italy [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.995327

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Published: 2026-06-23 • DOI registered: 2026-06-23

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Abstract:
Analyses of Lanaittu Sandstone (middle-upper Campanian, Eastern Sardinia, Italy), recovered from a geognostic well cored in 1989, permit reconstruction of the paleogeography of this area. Heavy mineral associations were analyzed in the 60-250 μm fraction of selected arenites. Samples were crushed and sieved to <4 mm, then disaggregated by etching with 10% hydrochloric acid to remove carbonate and apatite. For gravity separation, tetrabromoethane (density 2.967 g/cm³) was used. The ribbon method was used for quantitative analysis until 200 transparent grains were determined (Gazzi et al., 1973). The transparent heavy mineral assemblage includes rare glaucophane-crossite combined, up to 13% kyanite, and trace amounts of lawsonite, indicating a HP-LT metamorphic source.
Keyword(s):
Eastern Sardinia; heavy minerals
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:
Gazzi, P; Zuffa, G G; Gandolfi, G; Paganelli, L (1973): Provenienza e dispersione litoranea delle sabbie delle spiagge adriatiche fra le foci dell'Isonzo e del Foglia: inquadramento regionale [in Italian]. Memorie della Società Geologica Italiana, 12, 1-37
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: 12.43 m * Maximum DEPTH, sediment/rock: 27.50 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
Comment:
Values <0.01 = traces
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Sample code/labelSample labelSanchetti, Stefano
2 DEPTH, sediment/rockDepth sedmSanchetti, StefanoGeocode
3 Sample commentSample commentSanchetti, Stefano
4 Heavy mineralsHM%Sanchetti, StefanoAccording to Gazzi et al. (1973)
5 Transparent mineralsTransparent%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
6 Opaque mineralsOpaque%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
7 Turbid mineralsTurbid%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
8 ZirconZrn%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
9 TourmalineTur%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
10 RutileRt%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
11 GarnetGrt%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
12 TitaniteTtn%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
13 EpidoteEp%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
14 Zoisite+clinozoisiteZoisite+clinozoisite%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
15 ChloritoidCld%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
16 StauroliteSt%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
17 Glaucophane-crossiteGlaucophane-crossite%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
18 KyaniteKy%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
19 AndalusiteAnd%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
20 LawsoniteLws%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
21 VesuvianiteVes%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
22 OlivineOl%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
23 AnataseAnt%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
24 BrookiteBrk%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
25 MonaziteMnz%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
26 XenotimeXtm%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
27 CorundumCrn%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
28 Minerals, unidentifiedMin unident%Sanchetti, StefanoLight microscope, Zeiss [ocular KPL W 12.5X; magnification: 5x, 10x, 25x and 40x]
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
94 data points

Data

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

1 
Sample label		2 
Depth sed [m]		3 
Sample comment		4 
HM [%]		5 
Transparent [%]		6 
Opaque [%]		7 
Turbid [%]		8 
Zrn [%]		9 
Tur [%]		10 
Rt [%]		11 
Grt [%]		12 
Ttn [%]		13 
Ep [%]		14 
Zoisite+clinozoisite [%]		15 
Cld [%]		16 
St [%]		17 
Glaucophane-crossite [%]		18 
Ky [%]		19 
And [%]		20 
Lws [%]		21 
Ves [%]		22 
Ol [%]		23 
Ant [%]		24 
Brk [%]		25 
Mnz [%]		26 
Xtm [%]		27 
Crn [%]		28 
Min unident [%]
La312.432-4 phi0.837.029.433.613.511.53.522.51.56.55.513.02.05.014.51.0
La715.022-4 phi0.638.432.928.723.520.51.533.53.01.51.55.09.50.50
La1020.762-4 phi1.435.934.329.824.512.00.525.56.011.5<0.0112.5<0.011.56.0<0.01
La1623.502-4 phi1.045.825.628.611.013.51.518.50.56.53.56.01.510.523.04.0
La2027.502-4 phi1.122.251.726.112.010.00.523.510.57.00.500.53.0<0.01<0.010.50.527.50.51.501.01.0