Following.

Xu Xin drove his mother's car to a village near Milong Valley.

In the last three days of August, when the energy was full, he had to find out the size of the deposit.

At the same time, Jiang Yehu also brought people and equipment to the exploration area.

Xu Xin didn't plan to work with Jiang Yehu, he originally planned to rent the farmer's horses, pull the net to probe the ore deposit, circle the ore body, and calculate the reserves.

However, people here basically don't raise horses, and there are quite a few families who raise donkeys.

He was not hypocritical, rented five donkeys and hired locals as guides.

Also specially equipped with a donkey saddle.

From this day on, Xu Xin rode a donkey to look for mines.

The donkey has good endurance, and he is also walking like a fly in the mountains, carrying him on a rampage.

On the first day, he figured out the lake-like deposits at the entrance to the Lost Dragon Valley.

Because it is a number of mineral elements measured at the same time, a total of more than 600 points of energy is spent, which is already very fast.

In the system horizon, the deposit map is perfectly presented in the line of sight.

Unsurprisingly, the deposit as a whole is in the shape of a cauldron, thick in the middle and thin on all sides.

The gold placer grade is also high in the middle and low on all sides.

The placer gold deposit was condensed in its entirety, with only a protruding tail in the direction of the upper valley.

Looking down at the angle, like a tadpole with its head and tail wagging.

According to the automatically calculated reserves, the reserves of placer gold deposits at industrial grade are:

6t；

The reserves that reach the boundary taste are:

9t。

The average grade reached 3 g/t.

Even by the standard of rock gold, it has reached the value of industrial mining!

In the center of the ore body, the gold placer content is even more amazing!

This is a large deposit for the size of a placer gold deposit!

At the current price of the gold mine market, it is more than 600 yuan per gram of pure gold, and 1,000 pure gold is slightly higher.

The economic value of placer gold deposits, it is not difficult to calculate, exceeds five billion!

This is to heaven!

Regarding the matter of reserves, Xu Xin was mentally prepared and did not panic.

The next day, he rode a donkey up the mountain as usual, running along both sides of the Lost Dragon Valley, almost touching the range of twenty or thirty kilometers upstream.

As in the case of the previous discovery, the placer gold content at the bottom of the upstream riverbed is neither high nor low, which can be used as an indicator of the search for gold deposits, but it is not possible to delineate the reserves.

Where the riverbed disappears, the gold content also drops dramatically.

So, where is the real Huangjiang gold mine, that is, the primary gold mine?

That's the crux of the matter.

Because when opening the horizon of stratigraphic analysis, in addition to setting up Au content measurement, mineral elements such as Ag, Gu, and Hg are also measured, which have a certain indicative effect on finding gold deposits.

Multiple mineral element measurements, the rate of energy consumption increases exponentially.

Fortunately, the system is rich in energy.

Two days have passed, and there are only more than 300 energy points left in the system.

The donkey carried Xu Xin all over the mountains, and the energy consumption of the system was fast, but there was still a surplus.

On the last day of August, he didn't want to waste his energy, so he decided to follow the location of the Lao Huang River speculated by Senior Yan Peng, go upstream, and continue to look for traces of gold primary mines.

In one day, they fled almost 120 kilometers in the mountains on donkeys.

On the mobile phone map, the automatically generated footprint is already a long broken line.

Nor can it be said that there is no gain.

At a distance of about seventy or eighty kilometers from the entrance of Milong Valley, the outline of the old Huangjiang deposit was seen again.

Follow the riverbed all the way upstream.

Unfortunately, at the bottom of the riverbed, no high levels of placer gold have been found.

It can be said that there is almost no gold placer in the riverbed upstream.

From this, it can be arbitrarily speculated that if the primary gold mine really exists, then it must be within a radius of tens of kilometers in the Lost Dragon Valley!

Maybe it's right in the riverbed that stretches to a depth of five hundred meters.

There is another possibility, after years of weathering or river erosion, the primary gold ore is gradually stripped from the rock formation, driven by the flow of water, and the primary ore disappears at the entrance of the Milong Valley, leaving only a placer gold deposit.

Either way, the gold prospecting rights held by the mining company in Xu Xin's name have included the entire Milong Valley.

With his current financial situation, he can only carry out exploration operations at the entrance of Milong Valley, first take out the reserves of placer gold deposits, and then apply for mining rights.

In the future, with more funds, it will be possible to explore deeper areas in the upper reaches of the Lost Dragon Valley.

At the beginning of September, the energy of the system was indeed cleared.

Xu Xin settled in the village next to the Lost Dragon Valley.

Jiang Yehu rented a house here as a project department and has already started surface work.

Xu Xin drew a concise map of the deposit overnight, which did not indicate the thickness, grade, reserves and other information of the placer gold deposit, but only drew a general location and depth.

He took the map of the deposit to Jiang Yehu.

According to his meaning, according to this magical deposit map, he can directly spread out and drill, and find out the reserves of the deposit in the shortest possible time.

An exploration project, according to the normal process, must first work on the surface geology, followed by geophysical prospecting, trench exploration, pit exploration, etc., and only then will drilling to find underground ore layers when the surface metallogenic conditions are good.

Now Xu Xin just wants to speed up the exploration of gold mines.

The reason why the deposit map is amazing is that no one has ever been able to come up with a deposit map when the project has just started and the surface work has just begun!

This incident alarmed Xu Hengqiang.

He went straight from the Weishan molybdenum exploration project and checked the simple map of the ore deposit drawn by Xu Xin.

"You're a god, huh?"

This is the first thing Xu Hengqiang said to Xu Xin.

"I'm not a god, I'm looking at the information of other people's census work here in the past, looking at the results of chemical analysis, and finding some clues from it."

Xu Xin said, and also took out the information collected by Jiang Yehu on his predecessors, and took great pains to find a reason for himself.

But this argument is completely untenable.

Xu Hengqiang knew in his heart that he could pay off his debts, and the company had a large amount of cash flow because of the Weishan molybdenum mine exploration project, and Xu Xin played a pivotal role in it, so he wantonly invested in the exploration work according to Xu Xin's ideas.

As a result, Xu Xin's approach now is similar to jumping a big rope.

He trusted his son, so he didn't turn around and leave.

"What kind of eyes are you, these chemical analyses have extremely low gold content, which proves that it is unlikely that there is a gold mine in this area at the entrance of the Lost Dragon Valley!" Xu Hengqiang explained bitterly.

He couldn't see what was going on underground.

According to Xu Xin's deposit map, the shallowest part of the placer gold deposit in Milong Valley is only about 150 meters, and the more you go upstream to Milong Valley, the deeper the depth, and the deepest reaches more than 300 meters.

However, because there is a large mountain in the north, the mountain has collapsed, and stones have been rolling down for many years.

On the surface of the Valley of the Dragon, a thick layer of gravel has been piled up.

The geologists who carried out the survey work probably mistook these gravel layers for tectonic fractures.

The fact is that the entire riverbed is completely devoid of surface outcrops.

This is the same as the Weishan molybdenum mine, which is a blind ore body.

Of course, after Xu Xin's previous reminder, after Jiang Yehu's preliminary investigation, he found that the entire Milong Valley was indeed very likely to be a riverbed.

Moreover, the bottom is definitely a big structure, because the strata on both sides of the valley are completely different.