Valle del Tirso

Styles

Principal grape varieties

Terroir

• Sub-flat area flanking the Tirso river, with hilly outcrops of Oligo-Miocene volcano-sedimentary rocks and Plio-Pleistocene basaltic plateaus.
• The Oristano plain is formed by thick detrital-alluvial deposits, often terraced, laid down by the Tirso river within a tectonic graben.
• Near the coast, marine and aeolian dynamics have created extensive dune fields, ponds, and lagoons with sediments typical of coastal environments.
• Vineyard soils are predominantly Inceptisols and Alfisols (Palexeralfs, Haploxeralfs), with deep Entisols (Xerofluvents) and sandy Psamments of alluvial or dune origin.

• Viticulture documented in the Nuragic period (~1200 BC): at Cabras (loc. Sa Osa), grape seeds of vitis vinifera and remains of wine vessels were discovered.

• The alluvial soils 'Bennaxi' (silty-sandy, fresh) and 'Gregori' (gravel and clay) define distinct soil types for viticulture along the Tirso.

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

Sources

• eAmbrosia register (EU) — File number PGI-IT-A0816
• Official trade body site — Laore Sardegna