Gce Model Questions Vol1 2018 Geography Question 13
Practice objective / multiple choice question 13 from the 2018 Gce Model Questions Vol1 Geography examination.
A sedimentary rock sample has a volumetric composition of 40 % quartz, 30 % calcite, 20 % feldspar and 10 % clay minerals. During diagenesis the quartz volume is reduced by 10 % of its original amount, while calcite volume increases by 5 % of its original amount. The total rock volume remains constant, with the remaining minerals adjusting proportionally to preserve the total. What is the new percentage of calcite in the rock (to one decimal place)?
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About This Question
This is Gce Model Questions Vol1 2018 Geography Question 13. It is one of the objective questions from the 2018 Gce Model Questions Vol1 Geography examination.
Difficulty level: Medium .
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