Amethyst-bearing lava flows in the ParanáBasin (Rio Grande do Sul, Brazil): Cooling, vesiculation and formation of the geodic cavities

Geological Magazine

Volumn 144, Issue 1, 2007, Pages 53-65

  Proust, Dominique ^a   Fontaine, Claude ^a  

^a UNIVERSITÉ DE POITIERS   (France)

Author keywords

Amethyst; Basalts; Geodes; Lava flows; Mineralogy; Vesiculation; Volcanic rocks

Indexed keywords

BASALT; MINERALOGY; MINERALS; SURFACE WATERS; VOLCANIC ROCKS; WATER SUPPLY;

AMETHYST; BASALTIC LAVA FLOW; EXTERNAL SURFACES; FORMATION PROCESS; GEODES; LAVA FLOWS; RIO GRANDE DO SUL; VESICULATION;

COOLING;

AMETHYST; BASALT; BUBBLE; COOLING; LAVA FLOW; MAGMA; MODELING;

BRAZIL; PARANA BASIN; RIO GRANDE DO SUL; SOUTH AMERICA;

EID: 33846277985     PISSN: 00167568     EISSN: 14695081     Source Type: Journal    
DOI: 10.1017/S001675680600269X     Document Type: Article

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