Alkaline Rocks and Carbonatites of the World

Setup during HiTech AlkCarb: an online database of alkaline rock and carbonatite occurrences

Estiva

stripes

Occurrence number: 
025-00-114
Country: 
Brazil
Region: 
Rio Grande do Sul
Location: 
Longitude: -50.72, Latitude: -30.1
Carbonatite: 
No

This is a small occurrence of syenite which contains aegirine-augite and is surrounded by Quaternary sediments.

References: 
Schneider and Roisenberg, 1967.
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith