Alkaline Rocks and Carbonatites of the World

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

LOWELL, G.R. and VILLAS, R.N. 1983. Petrology of nepheline syenite gneiss from Amazonian Brazil. Geological Journal, 18: 53-75

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