GATE GG-1 · 2021 · GG - G1
Question 43: Igneous petrology
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Question 43
GG - G1NAT2 marksNeeds review
The mole percentages of SiO₂, Al₂O₃ and K₂O in a granitic rock are 84.21, 7.89 and 7.89, respectively. The molar proportion (in %) of K-feldspar in the rock is ______. [round off to one decimal place]
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2021GG - G1
GATE GG-1 2021 · Paper 1
Geology and Geophysics · Original paper archive
- Section
- Section GG - G1
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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