More than 900 years ago, European manuscripts recorded that the moon disappeared for several months! What is the reason?
Even more bizarre, the manuscript continues to describe that in addition to the disappearance of the moon, there are still dark and horrible white spots in the sky. They are not stars, but they are brighter than stars and can last for several months. Scientists cannot explain what the sky is. Until recently, a scientific team studied the ancient ice core at that time, revealing that this historical phenomenon may be related to a large-scale volcanic eruption!
1 108 volcanic eruption.
Researchers are not interested in Anglo-Saxon manuscripts, which is a by-product of solving this problem! The research team made a detailed study of the ancient ice cores in Greenland and Antarctica. According to the sediments in the ice core, such as the dust and bubbles sealed in the ice core at that time, we can reveal what substances were filled in the atmosphere at that time, and according to the composition of these substances, we can infer what major events happened on the earth at that time!
Drilling ice core
Bubble in ice
The volcanic eruption of 1 108 was suddenly discovered and put on the table. Scientists are not ignorant of those volcanic eruptions in geological history, but there were several volcanic eruptions around1110. Which one was it, how influential it was at that time, and how to record this kind of phenomenon in society at that time, scientist.
Asayama volcano
However, it is speculated that it was probably 1 108 that the Asayama volcano in Japan erupted for several months before it had such a large-scale and far-reaching impact on this astronomical phenomenon at that time! Scientists also found that in the second year after the eruption of Asayama volcano, the tree rings in many parts of the world were very thin, which means that the climate in that year was very unsuitable for plant growth, and only tall trees still had some vitality!
In addition, meteorologists also said that this volcanic eruption may cause the global average temperature to drop by 1. 1℃, which sounds like no big problem, but what you need to know is that when the Tambora volcano erupted in 1.8 15, the global climate anomaly lasted for one year, and the average temperature dropped less than/kl when many countries suffered from famine.
What is the volcanic eruption phenomenon that affects the moon and the climate at that time?
In my impression, the lava from the volcano is the most dangerous. Living Fire and Melting City shows a story of Los Angeles surrounded by lava. Finally, scientists opened a channel to introduce a steady stream of magma into the sea. Of course, the magma of this volcano is really dangerous, but there are even more dangerous volcanic ejecta: volcanic ash and acid gas!
As time goes on, these two heavy substances will quickly settle around the volcano. According to the eruption scale and wind direction, they will settle in the range of several thousand meters to Qian Qian meters, but some gases and dust will form aerosols, which will exist in the atmosphere for a long time under the action of atmospheric circulation, and may last for several years!
Volcanic eruptions seen in space
It is this substance that has the greatest impact on the global climate. It will reflect sunlight, so that heat cannot reach the ground, and it will stay for a long time. Because of the different thickness of airflow, it will flow around before settlement, so the sun will reach the ground in thin places, forming sudden high temperature weather, while in other areas, it is strange weather such as low temperature or even frost in summer in low latitudes.
So the moon could not be seen in the era more than 900 years ago. The sky and stars are just pediatrics, and greater disasters are waiting for them. In fact, a large-scale disaster did happen at that time.
What other famous volcanic eruptions have affected the climate in history?
From 1650 BC to 1600 BC, the eruption of Minos volcano, that is, the eruption of santorini volcano, was the largest on record, with more than 60 cubic kilometers of ejecta, which directly caused the destruction of Minos civilization. In addition, it may be the promoter of historical development around the world, even the prototype of Atlantis described by Plato.
In 79 AD, Mount Vesuvius erupted, and the volcanic ash directly covered the city of Pompeii with 20,000 residents. Until the middle of18th century, archaeologists excavated the ancient city of Pompeii from volcanic ash several meters deep, and a large number of ancient buildings and bodies covered with volcanic ash were well preserved, completely recording the scene of volcanic eruption.
[Place Name] Mount Vesuvius
/kloc-in 0/600, Dina volcano in Hennape erupted in South America, with an ejection volume of about 30 cubic kilometers, which caused the unusually cold climate in the world for the next three years and was also the chief culprit of the great famine in Russia.
18 15 years, Tambora volcano erupted, with an injection volume of about 100 cubic kilometers. It may be the biggest volcanic eruption in human history, and the global temperature dropped by nearly 65438 0℃. In the following years, the global climate was abnormal.
The volcano that will pose the greatest threat to mankind in the future: Yellowstone volcano, which may be dozens to hundreds of times larger than Tambora volcano. In the past two million years, it broke out three times, with an average interval of more than 600,000 years. It's just over 600,000 years since the last eruption. Moreover, the crater area of Yellowstone volcano has been very active in the past century. Once it breaks out, more than one-third of American soil will be covered with volcanic ash, which is no longer suitable for survival.
Dead zone after the eruption of Yellowstone volcano
The US Geological Survey predicts that the global temperature may drop by more than 5℃, and this scale will almost bring the earth back to the Ice Age! Of course, when it will break out, no one can say for sure! To understand the eruption scale, you can review "20 12"!