Usually at the bottom of lakes, seas, and oceans, although some deposition will occur on dry land in basins.
Or
Stream deposition occurs as streamflow drops below the critical setting velocity of a certain particle size......:-)hismejohn
Vein minerals can contain deposits of metals and other minerals, and occur in fissures or cracks of rock.
Canada
Metal deposits that occur in the cracks of rocks.
a shaft mine
minerals occur at veins and lodes,sedimentary ore deposits,alluvial or placer depositsand by weathering.
Plutonium occur in deposits of uranium ores but only in ultratraces. In the nature plutonium appear as a result of spontaneous natural fission of uranium isotopes a process with a very low cross section.
silver occur in lead, zinc, and copper ore deposits
Vien mineral deposits and beach sand.
vein mineral deposits, magma formed rocks, &beach sands.
No, Technetium does no occur naturally on earth except in trace amounts in molybdenum deposits.
Titanium ore can occur as vein mineral deposits, magma formed rocks, and beach sands.
A shaft mine is used to mine ore diposites from veins.