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Raunak Mitra posted an Question
April 25, 2021 • 05:54 am 30 points
  • IIT JAM
  • Geology (GG)

Assume a closed magma chamber in which 30wt% of the original magma has crystallized. the solid phases are compqsed of 10wt% of olivine and 20wt% plagioclase. we

Assume a closed magma chamber in which 30wt% of the original magma has crystallized. The solid phases are compqsed of 10wt% of olivine and 20wt% plagioclase. Weight % SiOz of the olivine and plagioclase is 38% and 60% respectively, whereas Si02 content of remaining melt is 45wt%. will be the SiO2 content of the original basaltic melt? (answer upto 1 place of decimal).

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    Mayank vedwal Vedwal Best Answer

    please check the solution in following attachment

    cropped488573197747943193.jpg
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