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"Your boss is actually quite beautiful, and you can see that when you are young, you must be a beautiful woman, and she is also the object of men's pursuit."

"It is said that when she was young, many big bosses wanted to ** her, and when she invested in minerals in the early stage, many bosses helped her, but it is difficult to say whether she was clean and self-conscious. But all in all, that gold mine made her..."

"Whoever digs the gold mine will succeed. By the way, do you have access to a lot of gold mines, other than that Golden Mile? ”

He Jingkun is not a good teacher, but he wanted to say two words to Jiang Hai's question, "Speaking of gold, I want to tell you that gold in nature can be divided into two kinds according to the different formations, one is the gold produced in the quartz vein or pyrite vein of hydrothermal origin, this kind of gold is called vein gold, for example, the "Golden Mile" super gold mine of the fluorite company belongs to vein gold;

The other kind of gold is produced in placer mines, so it is called placer gold. For example, the gold in the river is a type of placer gold.

Because vein gold is hidden deep in the rock, it is called gold ore when it is mined. Gold is decomposed and refined from these gold ores.

In fact, the professional surveyors of mining companies have their methods for discovering vein gold, and those top high-tech survey companies have some instruments. For example, radioactive prospecting methods, such as the former Soviet Union. Several gold mines have invented a radioactive prospecting method by taking advantage of the different combinations of gold and these radioactive elements. Several large gold deposits of considerable reserves have been discovered. ”

"Radioactive prospecting?" Jiang Hai didn't understand it a little.

He Jingkun explained, "Don't look at ordinary gold as having no radioactivity, but this kind of gold ore that has just been excavated is actually something with high radiation intensity, which is related to his underground activities in the rock layer!"

There are about 150 common radioisotopes in nature, some of which occur naturally. Such as carbon-14, potassium-40, radon-222, radium-226, etc., some of them emit A-rays, some emit β rays, etc., and many are accompanied by γ rays.

In fact, on the periodic table of chemical elements, all elements with atomic number after 83 are naturally radioactive. It's just that some elements are highly radioactive, and some are weak.

In the vein gold mine, it mainly contains uranium, thorium, potassium, radon, which are strong radioactive elements, and the content is not low.

It can be seen that the content of radioactive elements in gold ore is still very high! If you master the method of radioactive prospecting, it will be easier to discover gold deposits in the future. ”

I learned a lot from Jianghai!

But Jiang Hai has a mirror in his heart. Radiation prospecting, how high? That's all high-tech means played by some of the world's top advanced technology countries, at least. China's mining companies are still using primitive and old-fashioned survey methods.

"Jingkun, you said that my vein also has pyrite. Is it possible that my pyrite vein will also produce gold? ”

Jiang Hai was just joking, but He Jingkun was very serious, "Manager Jiang." Seriously, in fact, the day before yesterday, when we didn't survey some of the data to the present, we all sentenced this vein to death, thinking that it was a waste mine at all. There's no hematite at all. However, as you said, we advanced to the point of fifty meters, and our four mines made new discoveries to varying degrees, which allowed the tunnels to continue deeper. ”

"I now think that there are some articles in this mine, and it is not necessary that there is a gold mine if it is not guaranteed."

He Jingkun said that Jiang Hai was very excited. But at this time, Jiang Hai, who was wearing a bat hat and a hard hat, didn't hear anything of potential value from it.

Jiang Hai felt that eighty percent was no play.

The two of them talked and laughed along the way, and soon came to the end of the farthest tunneling tunnel.

Because after an upward mountain trend just now, and a further downward process, Jiang Hai estimated that the depth from the surface here was estimated to be about forty-five meters, that is, it was getting closer and closer to the location where hematite appeared.

Two days ago, after the repaired oil engine was repaired, it was originally pushed two or three meters into the roadway, which will have come to an end, but there is still a loss of 50 meters away.

There is no electricity, the power is out He Jingkun did not announce the stop of the operation, he feels that the current data has changed, and he is naturally looking forward to the results at the fifty meters.

But without ventilation and oil engines, it is more difficult and risky to operate.

And here, there is no concrete support in the seven or eight meters of roadway, only two or three wooden supports play the role of temporary support, and at the end of the roadway is a small pile of mined ore, and most of the cross-section of the excavation is exposed to the light.

From here, you can clearly see the difference in the ore veins, in the seven or eight meters of roadway without concrete support, the rock layers are the kind of thing that shines with a hint of yellow light from time to time, at first glance it looks like a gold mine, Jiang Hai now knows that those are exposed pyrite.

Pyrite is often mistaken for gold because of its light brass color and bright metallic luster, so it is also known as "fool's gold".

Pyrite is the most widely distributed sulphide in the earth's crust. In magmatic rocks, pyrite is fine disseminated, which is the product of hydrothermal action after the magmatic period. In contact metasomatic deposits, pyrite is often symbiotic with other sulfides and is formed in the later stages of hydrothermal interaction.

In hydrothermal deposits, pyrite is symbiotic with other sulfides, oxides, quartz, etc.; Sometimes huge accumulations of pyrite are formed.

In sedimentary rocks, coal measures and sedimentary deposits, pyrite is produced as agglomerates, nodules or lenses. In metamorphic rocks, pyrite tends to be a new product of metamorphism.

But now the mineral quality has obviously changed, and further down, the ore layer is a dark and reddish color, which is the typical color of hematite ore, that is, it is now very close to the appearance of hematite.

Most likely, hematite deposits will follow.

One step closer to the time when I was developed.

This is also one of the main tasks of this downhole!

That is to push the excavation face further down to a position of 50 meters, collect samples and continue to survey, and analyze the final data.

"I'm going to work, you help me turn on that miner's lamp in my bag. The lights in this alleyway are not enough! ”

He Jingkun had already unloaded the bag and put it on the ground, Jiang Hai connected the battery with an inverter and a wire, and got the discharge device, and suddenly, the stored electricity in the battery turned the miner's lamp extremely bright.

With ample lighting, He Jingkun casually turned off the miner's lamp overhead, and then picked up the guy and began to take the required samples from the excavation cross-section.

Keep going down slowly. (To be continued.) )