Placer deposits form when ____. (1 point) hot, metalrich fluids cool
Placer Deposits Form When. Heavy eroded particles settle out of moving water. The placer can be an accumulation of valuable minerals formed by gravity separation during sedimentary processes.
Placer deposits form when ____. (1 point) hot, metalrich fluids cool
Web placer mining ( / ˈplæsər /) [1] is the mining of stream bed ( alluvial) deposits for minerals. Web mineral found in placer deposits. Web placer deposit, natural concentration of heavy minerals caused by the effect of gravity on moving particles. The placer can be an accumulation of valuable minerals formed by gravity separation during sedimentary processes. 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. 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. Placer deposits naturally accumulate heavy, valuable minerals, which are formed by the gravitational effect during sedimentary processes. Web a placer is any waterborne deposit of sand or gravel that contains concentrated grains of valuable minerals such as gold or magnetite, grains that had originally been eroded from bedrock but were then transported and concentrated by the flowing water. The word placer is spanish for alluvial sand. Placers can be found in rivers (alluvial placers) and on the coast, particularly in beaches.
Placers can be found in rivers (alluvial placers) and on the coast, particularly in beaches. 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. Unless preserved by burial, a placer subsequently may be eroded, and either dispersed or reconcentrated. Mineral deposits formed as a result of gravity separation based on density are called placer deposits. Web mineral found in placer deposits. 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 placer mining ( / ˈplæsər /) [1] is the mining of stream bed ( alluvial) deposits for minerals. The word placer is spanish for alluvial sand. When heavy, stable minerals are freed from their matrix by weathering processes, they are slowly washed downslope into. Web a placer is any waterborne deposit of sand or gravel that contains concentrated grains of valuable minerals such as gold or magnetite, grains that had originally been eroded from bedrock but were then transported and concentrated by the flowing water. Heavy eroded particles settle out of moving water.
