How are gold mines formed? How did ancient people detect gold?

The world's best treasures are mainly hidden underground in the form of rock gold and sand gold, in addition to associated gold. Rock gold is formed by the movement of celestial bodies, the formation of the earth, volcanic eruptions, paleoorogeny, magma eruptions, and the entrainment of gold elements from the earth's core. The mountains rich in gold are rich in sunshine weathering, thunder and lightning, storms and rains, landslides, mud and rocks, floods, and precipitation of rivers and rivers.

There is a kind of plant, which is a pure natural "**detector", which often grows near gold mines, and can also absorb ** from the soil, and the ancients relied on it to find gold mines.

This is because of the movement of the geology, and people in ancient times judged by their surroundings, by the stones that had been exposed.

Heavy metal elements produced by supernovae** are subjected to marine sedimentation and regional metamorphism to form gold deposits. Ancient people used heavy sand prospecting to find gold, identify the texture of sand, and look for its **.

The discovery process should be: river beach - river sand - foot of the mountain - belly of the mountain.

At first, it was supposed to be in the river beach to pick up the dog's head gold, found that the color is beautiful, easy to process, can be made into a lot of high-end jewelry to find nobles to eat, and it is very rare, it has become a valuable, there are more people to the river beach to find.

Slowly, some people found that the large pieces of dog's head gold were not easy to find, but there were more small ones, and they added up to no less than the dog's head gold, so they looked for fine-grained gold on the river beach, so they began to refine it into panning for gold from the river sand.

Then, due to the characteristics of the river flow, everyone slowly looked upstream and found that there was also gold in the sand and gravel at the foot of some mountains, so they turned from panning for sand gold to panning for gold on land, which is called the remnant slope of placer gold.

That's pretty much how it should be.

a) Look for it in the stream.

2) Look for a monolith in the mountains.

c) Search for veins from the waterline.

d) Look for veins directly from the rocks.

(1) Find in the stream Find the pebbles of Tianhuangshi in the Shoushan stream, and there must be veins in the mountains at its source.

At the beginning of the Qing Dynasty, Li Gehua of Changle County found the brook egg stone in the stream, so he spent money to buy Yueyang Mountain, and instructed future generations: Yueyang Mountain sells skin and not bones.

He concluded that there must be a large amount of Shoushan stone mines in the rocks of Yueyang Mountain.

Later, people really mined "hibiscus stone" in Yueyang Mountain.

2) Find a monolith on the mountain The subvolcanic rocks are exposed to the surface of the earth through the erosion of wind and rain, and then they crack and crush, and the Shoushan stone sandwiched in the rock also collapses and rolls down the slope.

Therefore, the discovery of such stones indicates that there are veins of Shoushan stone in the nearby mountains.

3) Finding ore veins from the waterline Stone farmers in Shoushan Village have a saying: those who have no water must have no stones.

The formation of Shoushan stone is formed by magma filling the cracks in the rock and then condensing.

Cracks in the rock, though filled, still have gaps through which surface and groundwater leak and trickle out of the surface.

In Shoushan, where there is water, there are mineral veins; If there is no water, there is no vein.

4) Look for veins directly from the rocks It is found that the cracks of the rocks have filled Shoushan stone veins, which can be dug along the veins.

This is one of the most accurate methods of prospecting.

It is said that the monk's cave was dug in this way.