Geysers are hot springs that erupt intermittently, mostly in areas with active volcanic activity. Some people compare it to an underground natural boiler. In the active volcanic area, lava turns formation water into steam, which rises along the cracks, condenses into high-temperature water when the temperature drops below the vaporization point, and erupts at intervals to form geysers.
2, medicine spring
Medicinal spring is a kind of natural spring that often treats stomach diseases.
In the Ewenki Autonomous Banner of Hulunbeier League, Inner Mongolia Autonomous Region, there is a Wiener River mineral spring. There are seven springs in the range of less than 20 square meters. The temperature in spring is 3~8℃, which is lower than the local average temperature. This kind of spring is called cold spring.
Although these seven kinds of springs are close together, their chemical compositions are different and they have different medical functions. Many diseases can be treated here through "outpatient service" and "symptomatic drinking water". These seven-eye springs are numbered and named: 1 Xinquan, 2 Universal Springs, 3 Head Springs, 4 Eye Springs, 5 Ear-nose Springs, 6 Stomach Springs and 7 Cold Bath Springs.
3. Yuanyang Spring
Yuanyang Spring is 2.5 kilometers east of Fengshan County, Hechi City, Guangxi. It is about 45km from the county seat, 300km from Nanning and160km from Hechi City. Nanning, Hechi to Fengshan highway can be reached. Yuanyang Spring, also known as Yuanyang Lake and Gongmu Pool, is a two-eyed spring pool with clear water color and a distance of more than 20 meters between north and south.
4. Spring without freezing
The unfrozen spring is located at the junction of Sanjiangyuan Nature Reserve and Hoh Xil Nature Reserve, overlooking the Yuzhu Snow Mountain in Kunlun. It is 35 degrees 3 1 minute north latitude 10.59 seconds east longitude 93 degrees 54 minutes 58.9 1 second, with an altitude of 4543.2 meters. Qinghai-Tibet Highway and Qinghai-Tibet Railway pass through here. Although it is located in the frozen area with high altitude, the spring water is crystal clear all the year round.
5. Boiling spring
The temperature of the spring mouth is about equal to the geothermal water outcrop with local boiling point. Refers to the groundwater outcrop whose temperature is about equal to the boiling point of local surface water.
The saturation temperature of a boiling spring is a function of the height of the spring mouth. As the altitude increases, the boiling point decreases, and the rate of decrease is not very constant. However, when the altitude is below 5000m, the boiling point will drop by 65438 0℃ for every 303m elevation.