Placer Deposits Form When. Placer deposits form when heavy eroded particles settle out of moving water. Mineral deposits formed as a result of gravity separation based on density are called placer deposits.
Types of Placers
Web placer deposit, natural concentration of heavy minerals caused by the effect of gravity on moving particles. Placer deposits form when heavy eroded particles settle out of moving water. Placer deposits naturally accumulate heavy, valuable minerals, which are formed by the gravitational effect during sedimentary processes. Mineral deposits formed as a result of gravity separation based on density are called placer deposits. Placers can be found in rivers (alluvial placers) and on the coast, particularly in beaches. Web placer mining ( / ˈplæsər /) [1] is the mining of stream bed ( alluvial) deposits for minerals. Web placer deposits result from weathering and release of gold from lode deposits, transportation of the gold, and concentration of the gold dominantly in stream gravels. The word placer is spanish for alluvial sand. Web “placer” deposits are formed by surface weathering and ocean, river or wind action resulting in concentration of some valuable heavy resistant minerals of economic quantities. Web so, placer deposits, also just called placers, form when one or more minerals concentrate in this way to become an ore deposit.
Web “placer” deposits are formed by surface weathering and ocean, river or wind action resulting in concentration of some valuable heavy resistant minerals of economic quantities. The name is from the spanish word placer , meaning alluvial sand. Minerals that form placer deposits include precious deposits like gold, platinum, copper, zircon and various gemstones apart from magnetite, ilmenite, chromite, cassiterite, rutile, and native monazite. Web 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. Web mineral found in placer deposits. Web placer mining ( / ˈplæsər /) [1] is the mining of stream bed ( alluvial) deposits for minerals. Unless preserved by burial, a placer subsequently may be eroded, and either dispersed or reconcentrated. Web placer deposit, natural concentration of heavy minerals caused by the effect of gravity on moving particles. Placer mining is frequently used for precious metal deposits (particularly gold) and gemstones, both of which are. The placer can be an accumulation of valuable minerals formed by gravity separation during sedimentary processes. Placer deposits form when heavy eroded particles settle out of moving water.
