Placer deposit

https://www.wikidata.org/wiki/Q2141583

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Parent
Physics 33.4M papers	Materials science 18.8M papers	Geology 10.5M papers	Thermodynamics 5.1M papers
Metallurgy 4.9M papers	Geochemistry 806k papers	Placer mining 3,711 papers
Current
Placer deposit 1,502 papers
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