Siliceous soil explained

Siliceous soils are formed from rocks that have silica (SiO₂) as a principal constituent. The parent material of siliceous soils may include quartz sands, chert, quartzite, quartz reefs, granite, rhyolite, ademellite, dellenite, quartz sandstone, quartz siltstone, siliceous tuff, among others.^[1] These parent materials sometimes originate from silica-secreting organisms such as radiolarians, diatoms, or some types of sponges.^[2]

Characteristics

Soils high in siliceous parent material typically have:^[1]

• lower cation-exchange capacity,
• higher susceptibility to external sources of sodium,
• lower buffering potential,
• higher acidity, and
• higher erodibility

Agriculture

Siliceous soils in vineyard soils have been linked to larger grapes with increased tannin content.^{[3] [4]}

See also

• List of vineyard soil types

Notes and References

1. Gray . Jonathan . Murphy . Brian . Parent material and world soil distribution . World Congress of Soil Science. 2002. Thailand. 10.1.1.3.2975 .
2. Book: Schumann. Walter. Handbook of Rocks, Minerals, and Gemstones. Houghton Mifflin Harcourt. 1993. 978-0395511374.
3. Conte, M., Rossini, L., Tiberi, M., Montanari, A. (2006). Verdicchio dei Castelli di Jesi vs Verdicchio di Matelica: Geomorphological control of two white wines of the Marche region (northeastern Apennines, Italy). Bollettino Della Società Geologica Italiana E Del Servizio Geologico D'Italia, 6, 41-48.
4. Burns S. (2012) The Importance of Soil and Geology in Tasting Terroir with a Case History from the Willamette Valley, Oregon. In: Dougherty P. (Eds.), The Geography of Wine (pp. 95-108). Springer, Dordrecht.