Tang spent two days at the St. Lawrence Copper Mine before leaving Argentina and returning to the United States.

When Tang's plane landed at Elko Airport in the northeastern Nevada city, it was already 10 minutes old at night.

Elko is the seat of the county seat of Elko County, with a population of just over 20,000 people. Despite the small population and small footprint, the city is the largest along Route 80 between Reno, Nevada, and Salt Lake City, Utah.

About fifty kilometers southwest of Elko is the famous town of Karin. In the '60s, a Lynn gold mine was discovered in the northern part of the town of Carlin, and gold prospectors flocked to it. In the following two decades, a large number of gold deposits with similar geological characteristics were discovered around the town of Carlin, which is a kind of micro-disseminated gold deposits, mainly produced in carbonate rock formations, referred to as "micro-disseminated gold deposits", because these deposits are surrounded by the town of Carlin, so this deposit is also called "Carlin-type gold deposit".

Carlin-type gold deposits are characterized by low grade, large scale, and inconspicuous boundary between the ore body and surrounding rock. The gold in this gold deposit is mainly produced in the form of micro-submicroscopy, and the assemblage of medium and low temperature hydrothermal minerals and trace elements such as Au, As, and Hg is generally developed. The world's known Carlin-type gold deposits are mainly distributed in Nevada, Utah and the two golden triangles of Yunnan, Guizhou, Sichuan, Shaanxi and Gansu in China, and also in Southeast Asia and Peru in South America.

However, according to the research, mining experts have found that there are actually three forms of Carlin-type gold deposits: one is the stratigraphically controlled metasomatic ore body in the sandy carbonate strata of the Roberts Hill Formation, and the ore body is generally stratigraphically integrated; One is that the mineralization is network-like, and the mineralization is formed at the structural intersection, and the ore-bearing rocks are strongly deformed and the broken ore has a disseminated structure. These are two types of veins. All of them are low-grade, large-scale Carlin-type gold deposits. Another type of Carlin-style gold deposit is a vein-like ore body with high ore grades and gold mineralisation and associated alteration confined to fault structures.

In 1962, a number of gold occurrences were discovered in the Carlin Belt, but the price of gold was so low at the time that no large-scale exploration and mining operations were carried out. Later, with the disintegration of the Bretton Woods system. The price of gold was no longer fixed, and from 1973 onwards, large-scale gold surveying operations began around the town of Carlin.

During the period from 1978 to 1986, this large-scale survey operation only stayed at the shallow surface of the earth, and although there were some breakthroughs, the results were not very large.

In 1986, on the basis of a study of geological metallogenesis, the surveyor conducted a deep well operation at the selected target. As a result, the survey well drilled a POST deposit at a depth of 300 meters after passing through the unore limestone at a depth of 60 meters. That is, the vein-like ore body, which has since opened the prelude to large-scale deep prospecting in the area. Numerous gold producers have surveyed the land and discovered a series of large and super-large gold deposits at depths ranging from 245 to 335 metres.

Among these discoveries are high-grade deposits with an average grade of more than 30 g/t, making Nevada a gold-producing mecca in the United States and the world, replacing Alaska. And the average cost of gold produced in Nevada is the lowest among all the world's leading gold mining regions. Its combined cost is even nearly 30% lower than that of a South African gold mine!

Choosing Nevada as the location for those precious metals in the star core is undoubtedly a pretty good choice. Nevada's tectonic environment is very complex. Therefore, if a few high-grade and large-reserve gold mines are found here, it will definitely not arouse the suspicion of others.

You know, Nevada alone is home to two of the world's top 10 gold mines, the world's second-ranked Cortez gold mine and the world's fourth-ranked gold strike gold mine. However, both of these mines are controlled by Canada's Barrick Gold, and the American gold producer does not even have a single mine in Nevada that ranks among the top 10 in the world. This has to be said to be a kind of sadness.

In the international mining industry, gold mines are classified according to their reserves. At present, of the nearly 200 large gold mines discovered in the world, there are three levels. The lowest tier is called "Very Large Gold Deposits", which have a minimum reserve limit of 100 tonnes. The upper limit is 500 tons; The second tier of the second class is called "giant gold deposits", and the reserve standard for this type of gold deposit is 500 tonnes at the minimum and 1,000 tonnes at the ceiling. As for the highest level of the third pole, it is called "super giant gold deposits", and the reserve standard for this type of gold deposit is a lower limit of 1,000 tons, with no upper limit.

For example, the Rand gold uranium mine in South Africa, which Tang Feng once patronized, is a super giant gold deposit and the largest gold vein belt discovered in the world, with gold reserves of more than 44,000 tons and platinum reserves of more than 10,000 tons!

In addition to the gold deposits that have just been created under Tang Feng's name, there were a total of 194 gold mines in the world that could reach super-large gold deposits, of which 154 were super-large, 18 were huge, and the number of super-giant gold deposits was 24. Of course, as for those gold deposits with reserves of less than 100 tons, naturally people will not pay attention.

At present, the gold mine announced under Tang's name is a Gravina precious metal mine, although the reserves of this gold deposit are not as large as the reserves of the Rand gold mine in South Africa, but don't forget that it is the result of Tang's deliberate control. But even so, the reserves of Gravina precious metal ore are definitely among the top three in the world.

Don't forget, the Rand Gold uranium mine in South Africa is actually an empty shelf now, and the lower gold layer of the Rand Gold uranium mine has almost been hollowed out by Tang Feng, and now the remaining more than 20,000 tons of gold and more than 10,000 tons of platinum in the Rand Gold uranium mine are almost ninety percent now controlled by Tang Feng.

Some of them were placed in the Arica and St. Lawrence copper mines by Tang, and a large part is now lying deep in the seabed rock formations of Gravina Island, and Tang plans to place all of the remaining thousands of tons of precious metals in Nevada.

Coincidentally, Barrick Gold has been clamoring to sell its four small and medium-sized gold mines in Nevada since the end of last year due to the debt crisis, and the total value of these four small and medium-sized gold mines is only 720 million US dollars, but if these four gold mines can be sold, it will be able to settle more than 3 billion US dollars of debt for Barrick Gold.

Tang Feng's purpose is to find someone to take over these four gold mines, you Barrick Gold can't see the value of these four gold mines, but in my Tang Feng's hands, at least three of these four gold mines are the kind of gold deposits that can definitely make people crazy! (To be continued.) )