placer deposit sentence in Hindi
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- The miners maintained that it was a natural placer deposit that belonged to the discoverers under Spanish law.
- Besides placer deposits of gold, and gold bearing quartz in weathered rock, gold also occurs in quartz veins.
- Native nickel-iron alloys with Ni 3 Fe to Ni 2 Fe occur as placer deposits derived from ultramafic rocks.
- They were also extensively used in hydraulic mining and working placer deposits for gold, tin and other heavy minerals.
- Initially, discoveries centred on placer deposits, which did not uncover the enormous primary deposits in the form of kimberlite pipes.
- After the placer deposits were exhausted, mining turned to the lode deposits that were the source of the placer gold.
- Panning for gold can be used to locate the parent gold veins which are the source of most placer deposits.
- The location of most Yogo sapphires within igneous rock rather than from alluvial placer deposits requires difficult hard rock mining.
- Over 3.6 million ounces of gold have been recovered from the Nome district, almost all of it from placer deposits.
- They are formed by accumulation of such heavy minerals within beach systems, and are a type of " placer deposits ".
- Laterite gold deposits are formed from pre-existing gold deposits ( including some placer deposits ) during prolonged weathering of the bedrock.
- The most economical ways of mining tin are by dredging, placer deposits, which can contain as little as 0.015 % tin.
- Other placer deposits on the west bank of the Colorado River were quickly found, including the Picacho and Cargo Muchacho districts.
- A steam-powered dragline was used to mine the placer deposits of Peters Creek, below the canyon that cuts through the Peters Hills.
- Placer deposits clustered near the village of Hughes and Indian Mountain are the other significant source of placer gold from the district.
- In areas where the ground is permanently frozen, such as in Siberia, Alaska, and the Yukon, placer deposits may be mined underground.
- The Golddust Camp placer deposits are found in the alluvium of the dry gulches radiating off Copper Flat and the andesite flows.
- Cassiterite often accumulates in alluvial channels as placer deposits because it is harder, heavier, and more chemically resistant than the accompanying granite.
- If pure platinum is found in placer deposits or other ores, it is isolated from them by various methods of subtracting impurities.
- Since gems and heavy metals like gold are considerably more dense than sand, they tend to accumulate at the base of placer deposits.
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