• Gold mining gear, long toms and sluices

    2011-06-21· Gold mining gear, long toms and sluices. June 21, 2011 By John Putnam 2 Comments. Long tom. As mining operations became more complex, the long tom and the sluice came into widespread use. The long tom was a shallow trough 15 feet long and 15 inches high and often increasing in width near the low end and through which a constant stream of water ran. A miner would

  • Using the Long Tom in Gold Mining Actforlibraries

    A long tom is a method used for small scale mining that is far more efficient then either the gold pan or the rocker as it is less work then these other methods. The long tom was originally used by the forty-niners in late 1848 just when the California gold rush was just getting underway. By 1850 it was in common use in the goldfields, and coupled with a hydraulic nozzle created such

  • Methods of Gold Mining Geology In

    Methods of Gold Mining. Gold, Mining 10:28 PM. A + A-Print Email. The Super Pit gold mine in Australia : Gold mining is the process of mining of gold or gold ores from the ground. There are several techniques and processes by which gold may be extracted from the earth. Placer mining Placer mining is the technique by which gold that has accumulated in a placer deposit is extracted. Placer

  • What is a mining long tom Answers

    What is a method for uranium mining? Uranium mining can be either by open pit mining or by underground mining. Read More. 1. Share. Share. Asked in History of the United States What is a long tom

  • Mining Techniques of the Sierra Nevada and Gold Country

    As with the Long Tom, gold was finally removed from the sluice boxes by panning. Hydraulic Mining. Hydraulic mining was a potentially efficient method of getting gold out of the ground, but it was also the most environmentally destructive. The principle was very simple but devastating — water under pressure would be directed against a bank of

  • Small Mining Long tom Minelinks

    Small Mining Long Tom A long tom usually has a greater capacity than a rocker and does not require the labour of rocking. It consists essentially of a short receiving launder, an open washing box 6 to 12 feet long with the lower end a perforated plate or a screen set at an angle, and a short sluice with riffles. The component boxes are set on

  • Gold mining Wikipedia

    Placer mining is the technique by which gold that has accumulated in a placer deposit is extracted. Placer deposits are composed of relatively loose material that makes tunneling difficult, and so most means of extracting it involve the use of water or dredging.

  • Mining Techniques of the Sierra Nevada and Gold Country

    As with the Long Tom, gold was finally removed from the sluice boxes by panning. Hydraulic Mining. Hydraulic mining was a potentially efficient method of getting gold out of the ground, but it was also the most environmentally destructive. The principle was very simple but devastating — water under pressure would be directed against a bank of

  • Early Gold Mining Methods sierrafoothillmagazine

    Mexican miners used the horse-drawn arrastre to crush gold-bearing rock. Left and below: Stamp mills were a more sophisticated technique for crushing gold ore. Huge nozzles such as these were used for hydraulic mining. Children view a small long tom at a Gold Rush re-enactment along the South Fork of the American River, Coloma, California.

  • What are the different methods of mining Answers

    What are the three gold mining methods? Gold is recovered by three basic mining methods: placer mining of alluvial deposits, lode or vein mining, and recovery as a by-product of base-metal mining

  • Gold Fever Prospecting Miners Working a Long Tom

    Prospecting Miners Working a Long Tom. Gold mining is nature's lottery scheme. A man may work in a claim for many months, and be poorer at the end; or he may 'take out' thousands in a few hours. It is a mere matter of chance. Louise Clapp. Click icon to hear Long Tom. These miners are working a long tom. It allowed them to work together in

  • Mining Techniques The Mining Masters

    The gold panning technique is very interesting. The way to do it is you have to put some gravel and sand into the pan and swish it around. If done properly, all that is left will be the black sand and the gold. Since the gold is shiny,it will stand out against the black sand and then pick out the gold.

  • Placer Mining Methods PLACER GOLD RECOVERY METHODS

    day, placer gold production comes from the dredge operating at Hammonton, from large placer mines employing the cya-nide process, from byproduct recovery in sand and gravel plants, from small placer mines, and from small dredging op-erations in rivers and streams. With placer mining, recovery of the gold from the ore is

  • GOLD rocksandminerals

    The rocker is a time-honored tool of the small-scale miner with limited means. The dip-box and long tom might be considered more like simplified sluicing methods than distinct methods. The long tom method was never very popular. The simpler methods all normally involve hand-mining operations (shoveling and/or picking of the gold-bearing materials).

  • Placer mining Wikipedia

    The methods used by the Roman miners are described by Pliny the Elder in his work Naturalis Historia published in about 77 AD. The author was a Procurator in the region and so probably witnessed large-scale hydraulic mining of the placer deposits there. He also added that the local lake Curacado had been heavily silted by the mining methods.

  • Miner Using Long Tom YouTube

    2012-10-24· Clip of a miner using a long tom on a beach at Nome. (B&W/Silent/16mm film) This film sequence is an excerpt of AAF-459 from the Dow Baxter Collection held by the Alaska Film Archives, a unit of

  • Author: Alaska Film Archives
  • Gold Mining Technique: The Long Tom by John Smith on Prezi

    Mining Technique: The Long Tom Using this mining technique, two men could mine about 400-500 buckets of gold per man. How this technique works: Specs: Particles of gold lodge in the edges of a lower piece of the flume while sand flows away with the water One man removes large

  • Long tom Definition of Long tom at Dictionary

    Long tom definition, a towed 155mm field cannon produced by the U.S. throughout World War II. See more.

  • gold rush tools and methods : definition of gold rush

    Bigger sluice boxes sometimes called "long tom" were used in the Klondike Gold Rush, the Cariboo Gold Rush, the Fraser River Gold Rush, and the California Gold Rush. Long Tom. Long Toms were used in the Cariboo Gold Rush and the California Gold Rush. The long tom looks like a sluice box, but bigger. Measuring 12 to 15 feet long, it was mainly

  • 10 ft. long tom gold sluice #1 YouTube

    2008-11-25· Bucket tram huling a load for Scott to empty into the Back packable 10 foot long-tom sluice box and bucket tram. Old school style gold mining in remote locations. Sluice, hopper and flume pipes

  • Long Tom Mining in the Gold Rush by Gabrielle Scheidig on

    It was first used in 1849 in the gold rush when miners wanted a new way to mine instead of using a washpan. It was used to catch gold particles, gold dust, and gold nuggets. Some interesting facts about the long tom are that a long tom doesn't require rocking like a rocking

  • Modern mining with a long tom or sluice

    Here are some examples of modern miners using over the counter gear you can pack in and back along with all the gold you find. Notice how the two guys with the long tom are taking their ore from somewhere on the hillside above the river. Here they’re working

  • Stamp Mills for Processing Gold Silver Copper Ore

    Stamp mills are used by miners to crush valuable ore and extract the metals within them. Gold, silver, and copper are common metals that are found within ore, and stamp mills allow these metals to be released from rock for further processing and refining.

  • Using the Long Tom in gold mining Other

    The Long TomThe long tom and its cousins the riffle board, and the rocker are used to mine alluvial gold.They are mining instruments that came out of the gold rush. The early mines in California were all alluvial, and could be worked by the masses unlike a hardrock mine that required a lot of capital before it produced a nickel’s worth of gold.

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  • Dredge Mining, Dredging, Mining Techniques, Gold Mining

    Trailer suction: A trailing suction hopper dredger is a large ocean going vessel. When the vessel starts dredging, the ship reduces its speed to some 1 to 2 knots and then lowers the suction pipes on both sides of the ship all the way to the seabed.