Digging out the soil layer, Wang Bo reached out to touch it. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

It stands to reason that if the sand is heating caused by sun exposure, then the temperature of the soil exposed by digging up the sand is relatively low, because the sunlight does not have the ability to penetrate the sand layer.

But now he touched it with his hand, and it felt warm in his hand, even a little hot.

Seeing this, he continued to dig, and dug out a small pit about forty centimeters in a few clicks.

At this time, there is murky water coming out, which is easy to understand, and next to Lake Hawea, the surrounding groundwater is abundant, and it is not uncommon to dig a pit and create a spring.

But the water was warm, and Wang Bo dug it again in another place, and the water that came out was still hot.

Seeing this, he speculated: "My God, is there really a volcano down here?" A hot spring? That's not a damn surprise, it's terrifying! ”

New Zealand is located in the "Pacific Ring of Fire" fault zone, an area known as the mantle thermal pressure zone subducted by the Pacific plate when it collided with the Indian and Australian continental plates.

This indive provides ample energy for volcanic activity, and as a result, New Zealand is characterized by a high density of active volcanoes and frequent eruptions.

However, there is no need to worry about the South Island, as New Zealand's active volcanoes are located in the North Island.

There is a triangular Taupo volcanic area, where regional surface fissures and volcanic eruptions occurred almost exclusively during the Pliocene and Pleistocene, such as Ruapehu, Anjou, Tung Gozhiva, Tarawela and Isle Blanc.

The deeper he dig, the hotter the water came out, Wang Bozhen became worried, and said distressedly: "If there is really a volcano down here, my God, then Sunset Town will be ruined!" ”

The most significant effect of volcanic activity on the landscape is violent eruptions, as is the case with volcanoes on Earth.

A geologist once said that the North Island of New Zealand was born of a volcano, but it is important to know that volcanic eruptions not only create mountains and hills, but also destroy everything.

New Zealand's famous Lake Rotorua, for example, is located in a collapsed ancient volcanic crater, the result of a strong volcanic eruption that destroyed a hill.

There is also the world's largest volcanic lake, Lake Taupo, a tourist destination in New Zealand, which was formed by a huge volcanic eruption 20,000 years ago. Over the past 2,000 years, thousands of square kilometres of the central North Island have been covered with Taupo ash.

Bowen was optimistic, saying, "How can a volcano erupt so easily? I've traveled from south to north, and I've lived for so many years, and I haven't seen a volcano erupt! ”

The young man also said, "Yes, even if there is a small volcano below, it may not erupt, and even if it does, it may not spew out magma, it may be volcanic fountains, volcanic mud pools, geothermal steam, and so on, like in my hometown. ”

Hearing him do this, Wang Bo looked at him and asked, "Are you from Rotorua in the North Island?" ”

The young man nodded and smiled, "Yes, that's my hometown, the land of volcanoes. ”

Wang Bo secretly said No wonder this guy is so calm, it turns out that people have always lived on the volcano.

Rotorua is surrounded by small volcanoes, but in recent times there have been no catastrophic eruptions, and the volcanoes have shown themselves mainly through volcanic fountains, mud pools and geothermal steam.

Volcanic fountains are intermittent jets of boiling water from deep underground, and the height of the water column varies with the ground pressure.

The volcanic mud pond is like a boiling gruel, full of bubbles.

Wisps of geothermal steam emerge after the bubble bursts, forming geothermal steam, which escapes into the atmosphere through various crevices in the subsurface.

In fact, Bowen and the young man's attitude is not pure optimism, and Wang Bo's panic is not because he is too pessimistic, but the result of different education.

In Chinese geography class, volcanoes are talked about, focusing on the disasters after volcanic eruptions, and New Zealand, a country of volcanoes, is more familiar with the calm side of volcanoes, and what students learn is that volcanoes basically do not erupt.

Just like an earthquake, Chinese talk about earthquakes and change color, New Zealanders talk about earthquakes like talking about a flu, pay attention but not fear.

There is no right or wrong in the two attitudes, and there is no one who is superior or inferior, but there are different understandings of these natural disasters after different education.

Another example, when it comes to storms, the Chinese shrug their shoulders and say that, every year big coastal cities are hit by hurricanes and storms. After the damage to the infrastructure, the state has to carry out post-disaster reconstruction.

New Zealanders have a headache when it comes to storms, because the damage caused by storms can only be claimed by insurance companies, otherwise they are responsible for the damage.

Volcanic activity has brought a lot of opportunities to the New Zealand economy, especially in the tourism and souvenir industries.

For more than a century, New Zealand's volcanoes and volcanic fountains have attracted thousands of visitors each year, and Auckland is a city built on a volcano.

In addition, volcanic activity in New Zealand has brought a variety of useful minerals and products to the country of New Zealand, for example, volcanic rocks can be widely used as building materials.

In addition, the underground hot water in volcanic hot springs and mud ponds contains various chemical components, which makes them a rare mineral spa resort.

Underground hot water from geothermal activity can also be used to treat rheumatism, muscle disorders, eczema and other intractable diseases. Certain other diseases can be cured in geothermal pools with different water temperatures and chemical compositions.

Volcanic mud and sulfur, a chemical rich in hot springs, have a strong bactericidal effect and can be used to treat skin diseases.

Geothermal steam can be collected through pipes and used for home and greenhouse heating, for heating swimming pools, and industrially for drying and shaping wood.

Geothermal steam can even be used for geothermal power generation, and New Zealand has been very successful in using geothermal power to export its technology to countries such as South America, Indonesia and the Philippines.

Bowen thought about this: "Boss, if you're particularly afraid of a volcano underground, develop a geothermal steam power station. ”

Geothermal steam power generation relies on steam being pumped from the ground, which reduces the pressure on the underground heat source and makes the geothermal energy less destructive.

This point can't be decided now, Wang Bo plans to find the geological department to come over and take a look, if there is really a volcano brewing underground, then he has to find a way to solve it.

It was enough to say that it hurt enough, he thought that the heart of the lake really brought him some surprise, but it surprised him, and there were not many things to be happy about.

On the contrary, the young men and women and Bowen thought it was cool to have geothermal energy on the lakeside, especially since there was so much water on the lakeside that digging a pit was equivalent to coming out of a hot spring, and when the hot water had settled clear, then you could go down and enjoy it. (To be continued.) )