Igneous rock with colour index as 60-90% of mathic materials which are dark coloured are known as
A) hyper melanic
B) melanocratic
C) mesocratic
D) lecucratic
Correct Answer:
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Q9: The term crust and lithosphere are same.
A)true
B)false
C)none.
D)none
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Q13: Igneous rocks with colour index as 0-30%
Q15: Igneous rocks which are very dark coloured
Q16: The percentage of silica in ultrabasic type
Q17: In intermediate type of igneous rocks percentage
Q18: Percentage of silica in acidic igneous rock
Q19: If shape of crystal is completely bounded
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