GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In which type of rocks are metals like Gold and Copper mostly found?
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Old sedimentary
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Old igneous
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New metamorphic
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Old metamorphic
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Explanation:
Detailed explanation-1: -Notes: Gold and copper are found in ore bodies associated with porphry. Porphry is a general term applied to igneous rocks of any composition that contain conspicuous phenocrysts (crystals) in a fine-grained groundmass.
Detailed explanation-2: -Solution(By Examveda Team) In old Igneous type of rocks metals like gold and copper mostly found. Gold and copper are found in ore bodies associated with porphry.
Detailed explanation-3: -Igneous rocks contain as little as 0.2 and as much as 73 ppb (parts per billion) gold. The average, calculated on the basis of 50 percent granite and 50 percent basalt, is 3.0 ppb.
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