Nasco di Cagliari
Styles
Principal grape varieties
Terroir
Natural factors
- Geologically complex zone: a Paleozoic granitic-metamorphic core, overlain by Mesozoic carbonate-dolomitic strata, Tertiary volcanics, and Quaternary sediments.
- The most recent basaltic lava flows were emplaced during the Plio-Pleistocene; they contribute to the formation of the volcano-sedimentary complexes of Arburese, Marmilla, Trexenta, Parteolla, and Sulcis.
- On the Oligo-Miocene marly-arenaceous hills, 'catenary' toposequences develop: Entisols → Inceptisols → Vertisols.
- In Quaternary detrital formations (alluvial deposits, glacis, colluvium), evolved Alfisols appear with accumulations of clays, iron, oxides, carbonates, and petrocalcic horizons, grading through to Ultisols.
- The soil moisture regime is almost always xeric, with halomorphic soils (Salorthids) and Psamments in coastal and hydromorphic lowland areas.
Human factors
- Nasco has been cultivated in Sardegna since ancient times, on substrates ranging from the Paleozoic granitic core to the Plio-Pleistocene basaltic lava flows.
- On the Oligo-Miocene marly-arenaceous hills, catenary toposequences develop: Entisols–Inceptisols–Vertisols.
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