Anti-Japanese War: My understanding is incredible, I built the Sixth Military Factory

Zhu Fan and the others looked in the direction Su Jie pointed and looked sullen!

"Nothing!"

"yes, I don't see any minerals here..."

A few experienced villagers looked at it, and with their many years of experience, they could not see why.

Su Jie was also not verbose, and said directly: "Look, the mountain in front..."

"It seems to be a gold mine..."

"Look at the three mountains, four do not expose, one is a mountain, Guanmen Mountain, Yingmen Mountain, do not show the mouth in front of the ditch, do not expose the blockage behind the ditch, do not show the wind in the ditch, and do not expose the whole ditch."

Su Jie said smoothly, confusing everyone.

So, Song Jie began to explain.

"Zashan" is a gold-producing mountain in the upper reaches of the river valley.

It is characterized by tall (unobtrusive) and "horse toothstone" veins (quartz).

"Guanshan Gate" is the pincer-shaped mountain of the river valley, also known as "Guanmen Zuizi".

"Yingmen Mountain" is the head-to-face mountain of the river at the bend of the river valley, also known as "no mouth" and "no mouth".

This landscape is a favorable indicator of placer gold mineralization.

Above Guanmen Mountain or in the river valley in front of Yingmen Mountain, there are areas rich in placer gold.

"No wind" is also known as "no waist", and the mountains on both sides of the river that produce placer gold are relatively high, and the "wind" seems to be unable to blow out.

"Unexposed" means that the rocks of the riverbed floor are not exposed, indicating that the river valley is in the accumulation stage.

"Small ditch out of the mouth", "big ditch with legs", "not big and not small in the belly".

A small ditch refers to a small valley with a length of less than 3 km.

"Small ditch out of the mouth" refers to paying attention to the search for placer gold at the exit of the small ditch.

"Big ditches have legs" that is, placer gold deposits are found in larger river valleys, and it is possible to find placer gold deposits in some of its upstream tributary valleys.

Conversely, if there are placer gold deposits in the branch valley, there may also be placer gold deposits in the main valley.

After listening to Su Jie's explanation, everyone seemed to understand!

"Go, go and see..."

Soon, Su Jie came to the front of the gold mine and shouted at the common people behind him: "Quick, dig..."

Under the excavation of the villagers, soon there were fine grains of sand gold under the land.

In the rays of the sun, some places sparkle and sparkle!

"Haha, get rich!"

"Comrade Su Jie, you are too good!"

Su Jie: "Quick, dig a few larger pieces and take them back, and make a mark for the rest..."

"Yes!"

Under the hard work of Zhu Fan and others, they quickly dug up a few pieces the size of their index finger, and then buried the soil.

[You have dug the sand gold ore, and you have a feeling in your heart, and you have no master to understand the extraction method of sand gold ore 999 full gold...].

Immediately afterwards, Su Jie instructed the villagers how to dig for gold and what to look out for.

First of all, attention should be paid to silicified zones, quartz veins, and secondary quartzite.

This is because gold mineralization is closely related to siliconization, and it can be said that silicon is not gold.

Of course, not all siliceous bodies produce gold, but most of the gold-containing siliceous bodies are smoky gray and have a good water color.

This is because gold-containing siliceous bodies contain more or less sulfides, which make quartz smoky gray because the sulfides are extremely fine.

In particular, the flake quartz veins (which can contain multiple black bands, such as a mixture of carbonaceous and fine-grained sulfides), have good gold content.

Even gold-type quartz veins with less sulfide.

When gold parcels appear, sulfides such as stibnite, bismuthite ore, wheel ore, toxic sand, caviar lead-zinc ore, etc. are often present.

Again, focus on fracture tectonic zones, especially ductile shear zones.

Gold mineralization is all related to fracture, and it can be said that it is not gold.

In particular, attention should be paid to superchypritis, chylopritis, microgranulated quarethite-like quartzite, talc magnesite schist.

They tend to be where gold-rich orebodies are located.

Mega to large fault zones tend to have poor gold content themselves, while secondary fault zones on the side tend to be the producing sites of gold ore bodies.

Third, attention should be paid to the gold content of iron caps, brownish-red, brownish-yellow residual slope deposits and carbonate trench deposits.

Not only can they become cap-type and laterite-type gold mines in their own right, but they can also indicate the search for primary gold mines.

Fourth, attention should be paid to the prospecting for gold in antimony, mercury and arsenic ore (especially androgenite and female yellowite).

In the case of antimony ore, it can be symbiotic with gold to form antimony gold deposits.

It can also be separated, but it is not far apart, so there is a saying of "not in it, not far from it".

Gold can also be found in the periphery of some lead-zinc mines, such as the periphery of Qingchengzi lead-zinc mine; The lower part of the copper deposit.

Copper-nickel sulphide deposit alteration zones are also a good place to find gold.

Geophysical methods are used to find fault structure and sulfide distribution to find gold indirectly.

The villagers seemed to understand something, but they also understood the general meaning.

After explaining the matter, Su Jie returned to the arsenal with the gold mine.

"I wonder how the director will feel when he sees the gold mine?"

Zhu Fan and the others were full of expectations in their hearts.

......

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