Petrography of basalts from the Carlsberg ridge
Abstract
Petrographic characteristics of basalts collected from a segment of the Carlsberg Ridge (lat. 3 degrees 35'N to 3 degrees 41'N; long. 64 degrees 05'E to 64 degrees 09'E) show typical pillow lava zonations with variable concentrations of plagioclase and olivine phenocrysts, in addition to numerous filled and unfilled vesicles. These basalts are of the moderately plagioclase phyric basalts (MPPB) variety and are comparable to those of the Mid-Atlantic Ridge
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