What are ‘placer deposits’? Give examples of minerals found in such deposits.
Answer :
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Answer to be written in exam :
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Certain minerals occur as
alluvial deposits in sands of valley floors and base of hills.
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These deposits are called
‘ placer deposits’
and contain minerals, which are not corroded (destroyed) by water.
- Gold, silver, tin and platinum are most important among such minerals.
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