IIT JAM
Amber richhariya Asked a Question
November 11, 2021 12:29 pmpts 30 pts
  • IIT JAM
  • Geology (GG)

The following table shows modal abundance and mineral composition data of a plutonic igneous rock. the amount of sio2 in bulk composition of the rock is decimal

The following table shows modal abundance and mineral composition data of a plutonic igneous rock. The amount of SiO2 in bulk composition of the rock is decimal places). %. (Round off to two Mineral Olivine Mode (%) Sio: (wt. %)| Ca0 (wt. %)_Mg0 (wt. %) 45 b6 20 Cinopyroxene Orthopyroxene
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  • Saurabh 1 thankyou
    You just have to use simple formula for net amount from mode value(in percentage) of the mineral multiplied with the respective component. Amount of SiO2=[(45×34)+(35×55) +(20×58)...
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