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Sluicing mining Britannica

In hydraulic mining moving the slurry is called sluicing. Educing is the process of introducing the slurry into an enclosed circuit. In the hydraulic mining of gold the rebounding stream of water and mineral fragments is directed into sluices in which the gold settles behind baffles but the lighter waste matter is washed

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Hydraulic mining Wikipedia

Hydraulic mining is a form of mining that uses high-pressure jets of water to dislodge rock material or move sediment. The extremely high pressure stream was used to wash entire hillsides through enormous sluices. By the early 1860s, while hydraulic mining was at its height, small-scale placer mining had largely exhausted the rich surface placers, and the mining industry turned to hard

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Hydraulic mining Britannica

In the hydraulic mining of gold the rebounding stream of water and mineral fragments is directed into sluices in which the gold settles behind baffles but the lighter waste matter is washed away. In hydraulic mining of coal the water simply breaks the coal from the seam and washes it to a collecting point. See also placer mining. hydraulic mining, c. 1878. Hydraulic mining, California Gulch

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Hydraulic mining the sluice. New York Public Library's

Download Image of Hydraulic mining the sluice.. Free for commercial use, no attribution required. Dated: 1863 1868. Topics: california, gold mining, hydraulic mining, sluices, stereographs, photographs, the miriam and ira d wallach division of art prints and photographs photography collection, robert n dennis collection of stereoscopic views, thomas houseworth co publisher, stereoscopic

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Hydraulic mining the sluice DPLA

Hydraulic mining the sluice. Image. View Full Item. Created Date 1864 1873. Partner The New York Public Library. Contributing Institution The Miriam and Ira D. Wallach Division of Art, Prints and Photographs: Photography Collection. The New York Public Library. Subjects Sluices California Gold mining Hydraulic mining. Location California. Format. Photographs. Stereographs. URL http

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Hydraulic Mining, Mining Techniques, Underground Mining

Hydraulic mining became the vast-scale, and most devastating, type of placer mining. Water was redirected into an ever-narrowing channel, in the course of a large canvas hose, and out a giant iron nozzle, known as a "monitor." The tremendously high pressure stream was used to wash complete hillsides through huge sluices. By the early 1860s, while hydraulic mining was at its height, small

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Hydraulic mining: How does the material get to the sluices?

At a hydraulic mine, the material washes down with the water and flows through the sluices at the bottom of the pit. Simple I guess. I was just thinking this seems like it would only work if your sluice was on bedrock. Is that right? Any other way I see it, wherever you put the sluice, as the slurry runs into it it will also erode the material the sluice is sitting on and start going under the

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Gold Rush Hydraulic Mining YouTube

08/03/2011· History Teachers Buy history resources for your classes including worksheets, homeworks, tests, and presentations at: teacherspayteachers/St...

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Rob Towner's Official Gold & Diamond Mining Technique

Hydraulic riffles were first developed in New Zealand as far as I know. I first encountered them on a floating wash plant when I was doing a job there in 1989. Hydraulic riffles are a system of riffles that have a built in manifold that injects water into the gold recovery mats, and fluidizes the gravel that is retained in a specially designed deep riffle system for a fluidized bed that

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Hydraulic Mining Manson Creek

Hydraulic Mining. Hydraulic mining peaked during the late 1930s in the Omineca goldfields . Most of this Hydraulic mining occurred on the Germansen River. Larger pipes were choked down to smaller nozzles and this high pressure water was aimed at the gravel to expose deep tertiary channels at low cost. On some of the larger pits channels where cut deep into the bedrock in the bottom of the pit

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Hydraulic mining the sluice. New York Public Library's

Download Image of Hydraulic mining the sluice.. Free for commercial use, no attribution required. Dated: 1863 1868. Topics: california, gold mining, hydraulic mining, sluices, stereographs, photographs, the miriam and ira d wallach division of art prints and photographs photography collection, robert n dennis collection of stereoscopic views, thomas houseworth co publisher, stereoscopic

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Sluice Wikipedia

(Dutch: waaier sluis) This type of gate was invented by the Dutch hydraulic gold, and other minerals from placer deposits during placer mining operations. They may be small-scale, as used in prospecting, or much larger, as in commercial operations, where the material is first screened using a trommel or screening plant. Typical sluices have transverse riffles over a carpet, which trap the

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Hydraulic Mining--The Sluice — Calisphere

Hydraulic Mining--The Sluice; Image / Hydraulic Mining--The Sluice. View source image on the Online Archive of California. × Get Citation. We recommend you include the following information in your citation. Look below the item for additional data you may want to include.

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Hydraulic mining the sluice DPLA

Hydraulic mining the sluice. Image. View Full Item. Created Date 1864 1873. Partner The New York Public Library. Contributing Institution The Miriam and Ira D. Wallach Division of Art, Prints and Photographs: Photography Collection. The New York Public Library. Subjects Sluices California Gold mining Hydraulic mining. Location California. Format. Photographs. Stereographs. URL http

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Hydraulic Mining--The Tail Sluices, Yuba River Library

Hydraulic Mining--The Tail Sluices, Yuba River Contributor Names Lawrence & Houseworth, publisher Created / Published [published 1866] Format Headings Albumen prints--1860-1870. Stereographs-

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Gold Rush Hydraulic Mining YouTube

08/03/2011· History Teachers Buy history resources for your classes including worksheets, homeworks, tests, and presentations at: teacherspayteachers/St...

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243 Sluices Images: PICRYL Public Domain Search

Download Images of Sluices Free for commercial use, no attribution required. From: "Hydraulic Mining--The Tail Sluices, Yuba River", to "Placer Mining at Volcano, Amador County, The dump and sluice.". Find Sluices images dated from 1849 to 1936.

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Hydraulic mining placer mining with powerful streams

"Hydraulic mining" is the highest branch of placer mining ; it washes more dirt, and requires more water, and a larger sluice, than any other kind of mining. The number of men employed in a hydraulic claim, however, is usually small, from three to six, the water doing nearly all the work. In some claims a man is constantly employed with a heavy sledge-hammer in breaking up large stones, so

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Hydraulic riffles or New Zealander Sluice CARIBOO GOLD

I have only seen hydraulic riffles/sluices used on production placer operations and they were preceeded by slickplate and were considerably wider than the typical sluice. Hydraulic riffles can be designed/configured to recover fine gold, but there are many variables and the sluice really should be tailored to suit the feed that you will be running and ultimately unless your gold is pretty much

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Hydraulic Mining Manson Creek

Hydraulic Mining. Hydraulic mining peaked during the late 1930s in the Omineca goldfields . Most of this Hydraulic mining occurred on the Germansen River. Larger pipes were choked down to smaller nozzles and this high pressure water was aimed at the gravel to expose deep tertiary channels at low cost. On some of the larger pits channels where cut deep into the bedrock in the bottom of the pit

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