[69 Book Bar-www.] Information on Death Valley in the United States:

Origin of the name

No one knew the hottest place in North America: Death Valley. The cultural remnants left by the Indians here date back to 9,000 years ago, but the notoriety of "Death Valley" was not publicized until 150 years ago. In 1849

In winter, a gold mining team headed for Jinshan took a shortcut across the valley. Due to the harsh weather here, piles of bones were added to the boundless yellow sand. The few people who successfully crossed the valley sadly said "goodbye" when they left.

"death valley", hence the name death valley.

In addition, due to the drought and blazing climate here, many gold prospectors who used Death Valley as a shortcut to go to California were unfortunately buried in the ruthless desert, and the reputation of Death Valley in the United States spread like wildfire.

Formation process

Death Valley was formed about three million years ago when the earth's gravity crushed the earth's crust into huge rock blocks. At that time, some of the rock blocks protruded into mountains and some tilted into valleys. Until the Ice Age, mountains and seas were filled with lake water.

It entered the lower terrain, submerged the entire basin bottom, and after millions of years of steaming and scorching by the flaming sun, this great salt lake left over from the ancient century finally dried up. The Death Valley that is now exposed to nature is just

The accumulation of layers of mud and rock salt. The geographical location of this section is among the mountains adjacent to California and Nevada in the United States.

"Death Valley" is 225 kilometers long, about 6 to 26 kilometers wide, and covers an area of ​​more than 1,400 square kilometers. There are cliffs on both sides of the canyon, and the terrain is very dangerous. Its lowest point is -86 meters above sea level, which is the highest altitude in the United States.

lowest point.

climate characteristics

Death Valley, United States Death Valley, United States, is the hottest and driest region in North America. It hardly rains all year round, and there have been records of temperatures exceeding 40 degrees Celsius for many weeks. Whenever there is a heavy downpour, the hot place will wash up billows of mud.

There is also an "extinct crater" here. Since the temperature here in summer is quite high, often above 100 degrees, it would be quite dangerous if the astronauts landed in the space capsule without the cooperation and response of ground personnel. In the past, many people

After exploring Death Valley, I got lost and could not get out. As a result, I died of heat and starvation here.

During the summer, due to the influence of high temperatures, a large amount of rising warm air forms clouds above the valley. When enough clouds accumulate, rainfall will fall and cause short-term showers. In this way, the wildflowers and plants in the valley are nourished by the rain.

Opened all over Death Valley.

In addition to rattlesnakes, the animals that live in this place include desert geckos, foxes, bighorn goats, eagles and orioles, etc. Most of them are seen before sunrise or in the evening.

In addition, 100 years ago, various minerals such as gold, silver, and copper were discovered here, so there was a mining boom in Death Valley during that period, and the mining ruins of that year are still preserved. In the 1980s, borax was discovered again.

Few people come to mine. There are also rich minerals such as mica ore, limonite, hematite, and hill ore. Looking at Death Valley in the United States from the air, it forms a colorful pattern. It is a mineral deposit in the United States that has never been truly mined.

But generally, there is no way to survive.

An exploration team in the United States in search of gold mines happily went to Death Valley because they lost their way and set foot in it. Almost the entire team was destroyed. Several people who had a chance to escape also died mysteriously soon after. After that, some went to explore or try to uncover Death Valley.

The mysterious people were often killed in the valley. Later, scientists used aerial reconnaissance and were shocked to find that this living hell on earth was actually a "nirvana" for birds and animals.

According to aerial survey statistics, there are about 300 kinds of birds, thousands of snakes, 17 kinds of lizards, and more than 1,500 wild donkeys that thrive in Death Valley. They may be carefree there.

It feels so uncomfortable to fly, crawl, run, or lie down. To this day, no one can figure out why this canyon is so cruel to humans but so kind to animals.

mysterious phenomenon

Moving Stones in Death Valley, USA There is an unexplained geological phenomenon in Death Valley, California, USA - stones on the ground will move by themselves, leaving parallel sliding marks on the ground!

These strange stones are indeed sliding on the ground. There is wind in Death Valley, but it is not enough to blow these stones. Although we have not actually witnessed the real movement of the stones, from observation, this substantial movement is

Yes. Prior to this, people had heard of strong winds along the 27-mile route to Big Basket Crater in Death Valley, but the winds in Runway Basin, although strong, were unable to move the stones.

Thousand-year-old bacteria

The area where ancient bacteria were discovered. According to the British "New Scientist" magazine, American scientists found that 30,000-year-old bacteria were found in a salt crystal. They fed on the remains of algae that were also trapped. This is so far the most relevant

The most convincing example of the long-term survival of organisms. Microbiologist Brian Schubert of the University of Hawaii and his colleagues studied salt crystals in sediment cores extracted from California's "Death Valley". The salt crystals contain tiny

In the pockets of fluid, Schubert's team found that Archaean colonies could survive on samples of these fluids. They dated the fluid to between 22,000 and 34,000 years ago.

Archaean colonies can grow using liquid inside salt crystals, which can be traced back to 34,000 years ago. This is not the first time scientists have discovered that bacteria can be cultured through liquid pockets inside salt crystals. Previously, a research team

According to the report, they successfully cultivated bacteria using liquids dating back 250 million years. However, because salt crystals decompose and recrystallize over time, thereby capturing modern bacteria, some people have questioned the latest research results. Schubert

This explanation is that the salt crystal structure they found shows that it was formed in a hypersaline lake. Robert Hazzien of the Carnegie Institution for Science in Washington, USA, said that there is no perennial lake in Death Valley that is at least 10,000 years old.

, indicating that the recrystallization process never occurred, supporting the idea that the salt crystals are as old as they appear. Hatzian has questioned several previous similar studies.
Chapter completed!