Spanish For Your Place Or Mine

Bob Roberts
• Tuesday, 18 May, 2021
• 7 min read

At 10:53 pm 4 comments: Links to this post Saturday, September 09, 2006, Your place or mine ? Trixie, all I'm saying is it wasn't your place or mine to take the Bishop to task.

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Trixie, tout CE Que it c'est Que CE n'Étaín NI à to NI à moi DE reprimanded l'revenue. These examples may contain rude words based on your search.

The metal or gemstones, having been moved by stream flow from an original source such as a vein, are typically only a minuscule portion of the total deposit. Since gems and heavy metals like gold are considerably denser than sand, they tend to accumulate at the base of placer deposits.

Placer deposits can be as young as a few years old, such as the Canadian Queen Charlotte beach gold placer deposits, or billions of years old like the Elliott Lake uranium paleo placer within the European Supergroup in Canada. The word in Spanish is thus derived from place and refers directly to an alluvial or glacial deposit of sand or gravel.

Placers supplied most of the gold for a large part of the ancient world. Hydraulic mining methods such as hushing were used widely by the Romans across their empire, but especially in the gold fields of northern Spain after its conquest by Augustus in 25 BC.

One of the largest sites was at Las Medullas, where seven 30 mile long aqueducts were used to work the alluvial gold deposits through the first century AD. An area well protected from the flow of water is a great location to find gold.

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Placer deposits attract many prospectors because their costs are very low. Alluvial or fluvial deposits are the most common type of placer gold, and are often the richest.

Bench deposits are created when gold reaches a stream bed. Gold accumulations in an old stream bed that are high are called bench deposits.

Dry stream beds (benches) can be situated far from other water sources and can sometimes be found on mountain tops. A number of methods are used to mine placer gold and gems, both in terms of extracting the minerals from the ground, and separating it from the non-gold or non-gems.

The lighter range material such as sand, mud and gravel are then washed over the side of the pan, leaving the gold behind. Once a placer deposit is located by gold panning, the miner usually shifts to equipment that can treat volumes of sand and gravel more quickly and efficiently.

A rocker box (or “cradle”) is capable of greater volume than a gold pan, however its production is still limited when compared to other methods of placer mining. The small specks are gold, the larger ones are merely pebbles modern sluice box made of metal; in its base are the riffles used to catch gold settling to the bottom same principle may be employed on a larger scale by constructing a short sluice box, with barriers along the bottom called riffles to trap the heavier gold particles as water washes them and the other material along the box.

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This method better suits excavation with shovels or similar implements to feed ore into the device. While they are capable of handling a larger volume of material than simpler methods such as the rocker box or gold panning, this can come at the cost of efficiency, since conventional sluice boxes have been found to recover only about 40% of the gold that they process.

The sluice box was used extensively during the California gold rush for larger scale operations. When streams became increasingly depleted, the grizzly and undercurrent variants of the sluice box were developed.

The grizzly is a set of parallel bars placed at a 45-degree angle over the main sluice box, which filter out larger material. The undercurrent variety includes additional, auxiliary sluice boxes where material is initially filtered.

Alternative methods developed that used the blowing of air to separate out gold from sand. The bellows is then used to blow air through the board in order to remove the lighter material from the heavier gold.

This method was most commonly used by Spanish miners in America, and only requires a blanket and a box with a screen on the bottom. While this method is extremely simple and requires very few materials, it is also slow and inefficient.

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A Rommel is composed of a slightly-inclined rotating metal tube (the 'scrubber section') with a screen at its discharge end. Lifter bars, sometimes in the form of bolted in angle iron, are attached to the interior of the scrubber section.

The mineral bearing ore that passes through the screen is then further concentrated in smaller devices such as sluices and jigs. The larger pieces of ore that do not pass through the screen can be carried to a waste stack by a conveyor.

Large-scale sifting of placer gold from large volumes of alluvial deposits can be done by use of mechanical dredges. These dredges were originally very large boats capable of processing massive amounts of material, however as the gold has become increasingly depleted in the most easily accessible areas, smaller and more maneuverable dredges have become much more common. These smaller dredges commonly operate by sucking water and gravel up through long hoses using a pump, where the gold can then be separated using more traditional methods such as a sluice box.

Miners using jets of steam to melt the permafrost in an underground gold mine In areas where the ground is permanently frozen, such as in Siberia, Alaska, and the Yukon, placer deposits may be mined underground. Later methods involve blasting jets of steam (“points”) into the frozen deposits.

Although this procedure is not required, the process water may be continuously recycled and the ore from which the sought-after minerals have been extracted (“the tailing”) can be reclaimed. While these recycling and reclamation processes are more common in modern placer mining operations they are still not universally done.

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In earlier times the process water was not generally recycled and the spent ore was not reclaimed. The remains of a Roman alluvial gold mine at Las Medullas are so spectacular as to justify the site being designated UNESCO World Heritage status.

The methods used by the Roman miners are described by Pliny the Elder in his work Naturalist Historian 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 Curacao had been heavily silted by the mining methods. Environmental activists describe the hydraulic mining form of placer mining as environmentally destructive because of the large amounts of silt that it adds to previously clear running streams (also known as the “Daylong Method”).

Most placer mines today use settling ponds, if only to ensure that they have sufficient water to run their sluicing operations. In California, from 1853 to 1884, “hydraulic king” of placers removed an enormous amount of material from the gold fields, material that was carried downstream and raised the level of portions of the Central Valley by some seven feet in affected areas and settled in long bars up to 20 feet thick in parts of San Francisco Bay.

In January 1884, the North Bloomfield Mining and Gravel Company case banned the flushing of debris into streams, and the hydraulic mining mania in California's gold country came to an end. CS1 main: multiple names: authors list (link) ^ “Placers etymology and definition”.

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Outplace or Mine ? Presented by Cameron Matheson Country of originated StatesProductionRunning time48 mins. ReleaseOriginal network TLC Original release June 8 (2008-06-08) –July 13, 2008 (2008-07-13)External links Website Each episode featured two families competing to win several completely furnished rooms (e.g., a bedroom set or a fitness room) for their respective homes. Designated locations in each house needing an overhaul are identified prior to the show and shots of both are shown as the “before” images.

In pseudo-real time, co-host Diane Minot is shown leading a crew of movers into the winner's home to immediately remove the old furnishings and install the new ones. If they opt to steal, movers must restore the original room configuration of the victims of the theft, and then move the furnishings into the other house.

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