Nasco di Cagliari

Styles

Principal grape varieties

Terroir

• The zone has geological origins dating back to the Palaeozoic, the era in which the granitic-metamorphic core of the Sardinian-Corsican plate was formed, later remodelled by tectonic forces and morphological processes.
• During the Mesozoic, the sea deposited carbonate-dolomitic layers over the Palaeozoic core; these subsequently emerged and were eroded to form the rugged landscapes visible in the uplands of central-eastern Sardinia and in the Sulcis.
• During the Plio-Pleistocene, the final basaltic lava flows of Sardinian volcanism were emplaced, contributing to the volcano-sedimentary stratigraphic complexes that make up much of western and central-southern Sardinia, including the areas of Arburese, Marmilla, Trexenta, Parteolla, and Sulcis.
• In the Quaternary detrital formations — alluvial deposits, glacis, and colluvium — Alfisols with A-Bt-C profiles occur, showing accumulations of clays, iron, oxides, and carbonates, grading to Ultisols on the older deposits; the soil moisture regime is almost always xeric.

• The Nasco variety has been cultivated since ancient times in the area now falling within the provinces of Cagliari, Medio Campidano, Carbonia-Iglesias, and Oristano, and ranks among the oldest wines of the island.
• On the Oligo-Miocene marly-sandstone hills, toposequences of catenary soils occur in the succession Entisols–Inceptisols–Vertisols, while in the Quaternary detrital formations Alfisols appear with accumulations of clays, iron, oxides, and petroclacic horizons.

• The wine Nasco di Cagliari is described as being produced from a variety of 'great distinction and rare refinement', placing it among the oldest and most celebrated wines of Sardinia.

Facts drawn from the cahier's terroir-link section (Lien au terroir) by automatic interpretation — see the source.

Sources

• eAmbrosia register (EU) — File number PDO-IT-A1133
• Official trade body site — Laore Sardegna