stripes
Occurrence number:
025-00-033
Country:
Brazil
Region:
Paraiba
Location:
Longitude: -37.55, Latitude: -7.22
Carbonatite:
No
A small outcrop of fenitized diabase within Precambrian phyllites has been described from Catingueiras County (Farina and Mello, 1970). The rock principally comprises alkali feldspar, a sodic amphibole, biotite (30%), augite/aegirine and carbonate. High potassic (11.3% K2O; 4.59% Na2O) trachytes have been described from the same area (Farina, 1969, pp. 19 and 25).
Economic:
Minor lead and copper mineralization occurs.
References:
FARINA, M. 1969. Ultrabasitos niqueliferos de Catingueira-Paraiba. Consideracoes sobre a geoquimica e a geologia economica. Boletim Serie Geologia Economica, SUDENE, Departamento de Recursos Naturais, Divisao de Geologia, 7: 1-72.
FARINA, M. and MELLO, Z.F. 1970. Fenito com mineralizacao plumbo-cuprifera em Catingueira - Paraiba. Mineracao Metalurgia, 51(306): 225-8
Location: