Question

What are placer deposits

Answer 1

In geology, a placer deposit or placer is an accumulation of valuable minerals formed by gravity separation from a specific source rock during sedimentary processes. The name is from the Spanish word placer, meaning "alluvial sand". ... Types of placer deposits include alluvium, eluvium, beach placers, and paleoplacers

Answer 2

• Certain minerals may occur as alluvial deposits in sands of valley floors and the base of hills.

• The deposits are called ‘placer deposits’, and generally contain minerals, which are not corroded by water.

• Gold, silver, tin and platinum are the most important among such minerals.