Alkaline Rocks and Carbonatites of the World

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Chicontepec Area

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Occurrence number: 
108-00-015
Country: 
Mexico
Region: 
Vera Cruz
Location: 
Longitude: -98.17, Latitude: 20.98

The volcanic neck of Cerro Cacalote on the Plaines de Chicontepec consists of a basanite of augite and olivine phenocrysts in a groundmass of bytownite and anorthite, titaniferous augite, nepheline and magnetite. Other volcanic edifices in the vicinity of Chicontepec consist of tephrites and basanites with nepheline, analcime and aegirine.

References: 
ROBIN, C. 1976. El vulcanismo de las plancies de la Huasteca (Este de Mexico). Datos geoquimicos y petrograficos. Boletin Universidad Nacional Autonoma de Mexico. Instituto de Geologia, 96: 55-92. ROBIN, C. 1982. Relations volcanologie - magmatologie - geodynamique: application au passage entre volcanismes alcalin et andesitique dans le sud Mexicain. Annales Scientifiques de l'Universite de Clermont-Ferrand II: Geologie Mineralogie, 70: 1-503
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