Alkaline Rocks and Carbonatites of the World

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Morro Das Broas

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Occurrence number: 
025-00-060
Country: 
Brazil
Region: 
Minas Gerais
Location: 
Longitude: -46.23, Latitude: -18.83

Picritic and feldspathoidal alkali basalts occur, probably as necks; poorly known.

Age: 
68±3.4 Ma by K-Ar on picrite (Hasui and Cordani, 1968).
References: 
HASUI, Y. and CORDANI, U.G. 1968. Idades potassio-argonio de rochas eruptivas Mesozoica do oeste mineiro e sul de Goias. Anais Congresso Brasileiro de Geologia, 22: 139-43. ULBRICH, H.H.G.J. and GOMES, C.B. 1981. Alkaline rocks from continental Brazil. Earth Science Reviews, 17: 135-54
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