From La Cola
placer deposits from where water is moving fast enough to move lighter materials.
placer deposits
minerals occur at veins and lodes,sedimentary ore deposits,alluvial or placer depositsand by weathering.
during cementation, water deposits minerals that bind sediment particles together, which earth spheres are involved in this process?
You can go placer mining wherever gold is found in placer deposits. For gold, I'd suggest looking in Alaska, or California, or Arizona, though many other states also have gold in at least small amounts if you're willing to put in the effort. Montana is the state if you want to placer mine for sapphire.
placer deposits from where water is moving fast enough to move lighter materials.
placer deposits from where water is moving fast enough to move lighter materials.
placer deposits
placer deposits
placer deposits
placer deposits
minerals occur at veins and lodes,sedimentary ore deposits,alluvial or placer depositsand by weathering.
A placer deposit or placer is an accumulation of minerals formed by gravity separation during sedimentary processes. Placer deposits are frequently beaches or river gravels. They are mined by gathering up the ore containing material and sluicing these using water.
deltas and placer deposits
GOLD
Harry Allison Tourtelot has written: 'Hydraulic equivalence of grains of quartz and heavier minerals' -- subject(s): Placer deposits, Sediments (Geology)
Richard L. Lampright has written: 'Gold placer deposits near Anchorage, Alaska' -- subject(s): Gold mines and mining, Placer deposits