Alkaline Rocks and Carbonatites of the World

Funded by HiTech AlkCarb - New geomodels to explore deeper for Hi-Tech critical raw materials in Alkaline rocks and Carbonatites

Marie Mirim

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Occurrence number: 
025-00-002
Country: 
Brazil
Region: 
Amazonas
Location: 
Longitude: -66.2, Latitude: 0.5

This is an elongated area within the Guianese gneiss complex consisting of aegirine-riebeckite and aegirine granites with orientated, cataclastic fabrics. Biotite and occasionally fluorite are present. Boundaries to the peralkaline granite have not been mapped.

References: 
PINHEIRO, S. da S., FERNANDES, P.E.C.A., PEREIRA, E.R., VASCONCELOS, E.G., PINTO, A. do C., MONTALVAO, R.M.G. de, ISSLER, R.S., DAL'AGNOL, R., TEIXEIRA, W. and FERNANDES, C.A.C. 1976. DNPM Projeto Radambrasil Folha NA. 19 Pico da Neblina. Levantamento de Recursos Naturais, Geologia, 11: 17-137
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith