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Table 5 Modal composition (wt%) of basalts

From: Geochemical/hydrochemical evaluation of the geothermal potential of the Lamongan volcanic field (Eastern Java, Indonesia)

Sample Rock type Plagioclase Olivine Clinopyroxene Orthopyroxene Calcite Chlorite
FD1 Basalt Labradorite 94 6   
FD8 Basalt Labradorite 86 13 Diopside 1    
WP2 Basalt Labradorite 72 28     
WP9 Basalt Labradorite 71 29     
WP8 Basalt Labradorite 63 37     
WP11 Basalt Labradorite 79 21     
WP12 Basalt Labradorite 42 57    4  
WP14 Basalt Labradorite 83 17     
WP 17 Basalt Labradorite 71 29     
WP13 Basalt Andesine 50   Diopside 18 Augitea 28   
WP19 Basalt Andesine 68   Diopside 30    1
WP20 Basalt Labradorite 68   Diopside 9 Ferrosilite 23   
WP22 Basalt Labradorite 65   Diopside 14 Ferrosilite 21   
  1. aAdopted from Carn and Pyle (2001)