Why does the weather change and thunder in devil valley, Qinghai?

"devil valley" is located in a mountainous area in Qinghai Province, northwest of China. It is about100km long and 30km wide, and the average elevation of the valley is about 3,200m. This valley has Kunlun Mountain in the south and Altun Mountain in the north, with abundant rainfall and humid climate. Although it is located inland, there are dense forests and beautiful pastures here. However, this seemingly ideal natural pasture will turn into a ghastly hell when the weather changes, with strong winds and thunder and lightning on the flat ground. Especially the rolling thunder shook the earth, and the forest was burned to the bone. The nomadic minorities nearby have regarded this valley as a forbidden area for thousands of years. Those who accidentally fall in are often struck by lightning and rarely survive.

To unveil the mystery of "devil valley". Geological scientists in Qinghai Province have risked their lives for many times to conduct on-the-spot scientific exploration in this valley, and finally made a major breakthrough. Geological survey has confirmed that there are more than 30 iron ores and quartz diorite bodies in this valley stratum besides the strong magnetic basalt erupted by Triassic volcano in a large area. It is precisely because of the electromagnetic action of the strong magnetic field formed by the underground rock mass and iron ore belt here that the charges in the thunderstorm cloud are attracted, which leads to air discharge and lightning explosion.