A super-large silver polymetallic mine was discovered in Baiyangping, Shiliqing, Hexi Township, Lanping Bai and Pumi Autonomous County, Yunnan Province.

It has now been identified that the Baiyangping silver mine is divided into two mineral belts, the east and west.

Among them, the East Mine has 5 mining sections and is the most important resource-rich zone in the Baiyangping mining area. Currently, 22 ore bodies have been identified.

The No. 1 ore body is more than 2,900 meters long. The average thickness of the ore body under engineering control is 6 meters. The amount of silver source discovered is 1,000 tons and the copper source amount is 300,000 tons.

In recent years, new work has been carried out in the Mining and Minerals Section, and the controlled silver resources account for more than half of the total resources in the entire mining area.

Among the 11 ore bodies in the two ore sections of the West Ore Belt, the 1,400-meter-long No. 1 ore section has an average thickness of more than 2 meters in vein-like mineral layers, and the grade is enriched towards the depths.

The trip to Baiyangping Silver Polymetallic Mine started in Lanping County. A group of six people set off from Kunming in the morning and took a shuttle bus to Lanping County. Due to traffic jams on the way, it was already 8pm when we arrived at the county seat. We had a delicious dinner.

Enjoy your last meal before entering the mines.

Early the next morning, we hired a car to go to ***xing Village, Hexi Township. The scenery along the way was charming. A large group of goats crossed the road, which attracted us "donkey tourists" who were visiting the mines to stop and take photos, leaving behind beautiful scenery.

Drive from Lanping County to ***Xing Village: ***Xing Village belongs to Hexi Township, Lanping Bai and Pumi Autonomous County, Nujiang Su Autonomous Prefecture, Yunnan Province. It is located in the northwest of Hexi Township. The road to the township is a dirt road and the transportation is convenient.

***Xingcun is near Hexi Dayangchang, Dimaluo, Laowoshan, Luoguqing, Dayangchang Ecological Tourism Zone and other tourist attractions, as well as the traditional culture of the Pumi people in Qinghua Village, Hexi Township, Lanping Silky Sheep, Nujiang River

Specialties such as fish, traditional culture of the Pumi people in Qinghua Village, Hexi Township, and bronze crafts.

At around 9 a.m., we arrived at Baiyangping, the last stop that the car could reach. We took a group photo and the hike officially started.

It wasn’t too difficult at first. There were lush trees all over the hillside, and walking along the slopes and channels was just the right time to let your cardiopulmonary function adapt to the altitude.

This is the beginning of the journey to the Baiyangping Silver Mine. It is not difficult, but there is dew all the way, and my trousers will soon get wet.

After passing Baiyangping, there is a gentle flat road that slowly climbs to the exposed area of ??the ore body.

At this time, the sky started to drizzle; to continue moving forward, you need to cross south. This section of the road is difficult to recognize and it is easy to get lost. There are more people walking now, and the road is obviously more numerous.

After waiting for the people behind us to arrive, we started the crosscut to the south, turning left and right to observe the geological phenomena of the silver mine.

Take a rest and let’s go!

All the way up, up again, and continued to rise higher and higher. When I looked back, I saw that all my teammates were out of breath and panting heavily.

After 3 hours of altitude climbing, we arrived at Xiaoyakou, with an altitude of 3528.8 meters. After eating the dry food I brought with me and putting on my raincoat and trousers, I immediately felt much warmer.

The geotectonic location of the Baiyangping silver-polymetallic deposit is located at the northern end of the Lanping-Simaozhong depression of the "Sanjiang" fold system and the southern section of the "Sanjiang" copper-polymetallic mineralization belt.

The mining area mainly includes the purple-red and brick-red limestone and mudstone of the Yunlong Formation of the Tertiary System; the medium-thick layered fine to medium-grained lithic sandstone and siltstone intercalated with mudstone of the Nanxin Formation of the Lower Cretaceous System; the quartz sandstone of the Jingxing Formation of the Lower Cretaceous System.

, siltstone mixed with mudstone; Middle Jurassic Huakaizuo Formation silt mudstone mixed with limestone, siltstone, and sandstone.

The Jingxing Formation is exposed in the middle of the mining area, with broken rocks and developed small structures. It is the main ore-bearing layer in the mining area.

The Himalayan movement since the Paleocene is the most important folding movement in this area and is the result of the strong collision between the Indian plate and the Eurasian plate in the Eocene.

The nearly east-west compressive stress has formed a fracture system in the mining area that combines the nearly north-south thrust fault and its derived northeast-southwest compression-torsion fault.

The main north-south thrust fault is the ore-conducting structure, and the secondary northeast-southwest trending fault is the ore-containing structure, controlling the distribution of copper-silver polymetallic ores.

The nearly north-south main faults (F1, F3), which tend to the west with an inclination angle of 30 to 40°, are thrust faults.

There are multiple copper-silver polymetallic mineralization points distributed along both sides of the F1 fault in the area.

The northeast-southwest trending faults (F12, F9, F8, F2, F6) are arranged in parallel at intervals of 300 to 500m. They are a group of compressive-torsional-tensional-torsion faults, tending to the northwest, with an inclination angle of 70° to 87°, and are partially

Reverse tilt occurs.

The main ore bodies are produced along this group of faults (Figure 1).

The northeast-southwest trending fault was formed in the Himalayan period. In the early stage, the fault had right-moving compressive-torsional characteristics. As the stress direction changed, it later transformed into left-moving tensile-torsional characteristics, which is conducive to the filling of mineral fluid.

…………to be continued