THE DETECTION OF GOLD IN RIVERS
(Or how to make a fortune with a new method by being a gold prospector)
The gold sites, well known, unknown or untapped, are threefold.
First as gold sites well known since the dawn of time, of course we have got gold rivers, i.e. carrying either gold nuggets or flakes, or as fine powders. The gold by its color and brilliance not comparable to any other metals, has since a long time attracted the attention of elders who have taken advantage of rudimentary, however effective techniques to extract it from alluvium.
The gold alluvium ordinary results from the slow erosion of mountains and from the progressive decomposition of veins native of gold, generally mixed with quartz. Materials disintegrate little by little to meet in the streams where the gold, mixed with alluviums, can be got back by simple processes of densimetric sorting, using sheepskin stretched out in the river streams (the old method of the " golden fleece ") and in a more modern way by using a panning or even with the sluice for example.
Secondly we could quote mines. In mines exploitation, gold occurs either in free form, mixed with quartz as indicated above, either as an ore (complex one) which can contain silver, lead, tin, copper, galena and many other metals depending on location. We dug deep galleries with the Bouterole and fire along the veins and then we extracted ore which then was crushed and treated according its composition to extract gold. The most famous mining sites were exploited in open air places (Solomon's mines for example).
Typical Gold River
Quartz overlaid / inlayed with gold
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In the third part we find in the world some gold-bearing sites which do not seem to hold their origin from the slow erosion of mountainous native veins. The gold indeed appears in the form of big nuggets, even some times as enormous as several kilos and are scattered at random on vast extents. By looking it well, we can notice that the discoveries which are made are often located in a circle of several hundreds of meters or even miles around a center point without any peculiarity.
The gold of these "deposits" is there purer (92 in 94 % of purity) as if the earth had suddenly spat from its depths, packages of molten gold which would have risen very high in the air to then fall again still pasty for certain pieces, almost everywhere around one old walk volcanic, today disappeared. Let us quote for example the desert of Atar region of Sonora in Mexico where we can, with a good detector, localize nuggets of several hundreds of grams or kilos. The record is detained by the famous nugget called: "The boot of Cortez " of more than 12 kg, found in the same desert at a depth of only 35 cm with a very cheap and low efficient detector, and actually it was a second-hand detector.To read this article, click on this link:
Remember that gold is one of natural constituents of the densest on earth, with a density of 19,25 i.e. in a volume of one liter we can stock just over 19 kilos of gold and thus in a basic fool of 10 liters, we can put more than 192 kilos of the invaluable metal inside, useless to try to lift it!
In case of shocks of a huge meteorite on one face of the earth, which occurred hundreds or thousands of times in the history of our planet since its origin, the densest natural constituents, such as gold for example, may be propelled, under certain conditions, through the liquid magma to be violently ejected on the opposite face of the earth through volcanic pipes or active volcanoes of the moment.
Generally around the impact points of important meteorites e.g. in Siberia, Yucatan, we find no golden track but on the exact opposite side of the planet we often can localize big deposits of native gold. That’s why it would be clever to draw up a map of the most important impacts of meteorites known to try to discover enormous and totally unknown yet golden deposits. For this type of research where we have to go through huge extents of land with a great in-depth light and successful detector, we recommend the use of Deepers X5 provided with its hypersensitive search coil. And thus a big nugget even very deeply buried cannot escape you.
The “Boot of Cortés”. A famous block of gold of more than 12 Kg. This was found at a depth of only 35 cm by using a VLF detector within the desert of altar, close to Sonora in Mexico. At this place with a powerful and an efficient detector as a Deepers X5, we must find a fortune because this kind of discovery is never isolated and the only one...
A fool full of gold
How to look for the gold in the gold-bearing streams ?
To look for some native gold, that is in glitter, in grains or nuggets, such as the gold-bearing streams transport it, several summary methods can be used :
We can find at random, the sediments from rivers or the old shoreline, shovel and digs in hand, and gradually move to the pan or a sluice box a little more sophisticated. By stirring 2 tons of rubble a day of intense work we just would be able to get a few grams of precious metal (1 to 2 grams per ton of silt on average).
You can also search one by one the biggest nuggets with a good detector. It's very long, the chance is still necessary and nothing says that the gold exists in the rivers prospected or its old shorelines, with nuggets of good size, which is rarely the case in many places. We can spend weeks without finding anything.
The proper method to look for some gold in the alluviums of a stream it is to come down, up to its bed rock. Indeed in time the golden plots of land denser than the rest of alluviums concentrated little by little just above the solid bed of the stream constituted by patches of rock, by firmly packed clays or by a very tough and waterproof conglomerate.
In all cases, the research for gold at the level of the solid bed of the stream will give from 5 to 10 times more result than a research by picking out alluviums at random.
A new and surprising method which pay a way more can be used. We do not look any more for the gold but the concentrations of magnetic Black Sand, which means high presence of Gold…
For this latest method, by far the most fruitful and the least tiring one, we recommend the use of a magnetometer and more specially the Deepers MAG 505, made by our care for this very specialized work. Indeed it is much easier to look for the concentrations of Black Sand (magnetic material) than the gold itself, nugget by nugget.
Black Sand concentrations are located in the old way or watercourse of any river or stream transporting materials due to the slow erosion of old volcanic mountains. Furthermore whether the river is auriferous or was, we can find in pots or natural traps, large quantities of gold mixed with black sand. The record that we know is over 100 kg of gold collected in a single pot in French Guiana (a full fool of nuggets). Other gold deposits of several pounds are regularly found in many countries thanks to this original and revolutionary method. Note that the gold streams or rivers may have completely disappeared today. However they can be located with good satellite pictures by using the Google Earth software or by flying from a certain altitude.
Flume work after passing sieve
Look for gold with a panning ... a long, exhausting and unrewarding work !
Cut sigh of a water stream. We see below the accumulated alluviums, a much more compact and hard part, that is the bed rock. It is full of flaws, cracks and some big holes called "pots". These natural traps are filled within Black Sand and of a lot of gold if the river stream is (or was) gold-bearing.
The magnetometer Deepers MAG 505 allows to quickly identify specific grids throughout a watercourse but also above its old bed, which can extend over hundreds of square meters from both sides. Thus we will determine the most magnetic areas where there may are deep old traps (called pots in the jargon of gold miners). Just make a quick sampling with an auger, if the soil consistency permits it, or shovel and pickaxe in action, to study the sample collected. If there is presence of gold, we will dig a hole to extract the whole black sand of the pot (as in a pocket) and get all the gold it contains. Long cracks in the rock of the bed rock may also contain large quantities of gold.
We can easily with this method go through large areas of land, marking the places with a strong magnetism and often they are the most relevant places which hide a deep deposit of black sand and gold. The Deepers MAG 505 allows this work; it will emit a distinct sound above such concentrations. We may also refer to its very precise LCD meter, situated above the device. The instrument is very light, super ergonomic for long hours of tireless exploration, with autonomy of 60 hours (4 AA batteries) and very easy to use, we get how it works in few minutes.
In the case of mining company, it would be wise to devote a team to detect, which will go daily to very large tracts of land. The best places for good discoveries will be precisely tracked and identified by satellite positions (GPS). A second team with mobile keying equipment will be responsible for getting and gathering rapid samples, which will be sent immediately to the mobile laboratory. We will then decide on the operation of any other places on the basis of analytical results. This method is fast, modern and efficient.
A beautiful 120 gram nugget found in a river gold just above its bedrock (current market price around $ 3,000)
Auger two-stroke engine used in making samples on sandy or gravelly land.
LCD meter precision MAG 505
Magnetometer Deepers MAG 505
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