readx;? In the transition from the interglacial to the subglacial, the climate often changes gradually, with no clear boundaries in it. When transitioning from the subglacial to the interglacial period www.biquge.info the climate often takes the form of abrupt change, and there is a clear dividing line between the two. Scientists call this the termination line. Around 11,000 years ago, there was a termination line, and the climate warmed from cold. The average temperature of the subglacial period was 8~12C lower than that of the present, and the temperature of the low latitudes of the interglacial period was 5.5C higher than the current temperature. Cooling is slow, while warming is rapid.

During the Quaternary Ice Age, why were there subglacial and interglacial periods?

According to the theory put forward by the Yugoslav climatologist Lenković in the 30s of the 20th century, it is caused by small natural fluctuations in the three elements of the Earth's orbit. The three elements of the Earth's orbit are: the eccentricity of the Earth's orbit, the inclination of the Earth's axis, and the position of the equinox.

The Earth's orbit around the Sun is an ellipse, and the Sun is located on one of the focal points of the ellipse. In this way, the earth is in different positions in orbit, the distance from the sun is not the same, and the solar radiation energy obtained is different, such as in winter at aphelion, summer at perihelion, winter is cold and long, summer is hot and short. The eccentricity of the Earth's orbit is now 0.017, but the eccentricity can vary within that range. It has a change period of about years. The change in eccentricity affects the distance between the sun and the earth, which affects the intensity of solar radiation, leading to a change in the climate on Earth.

The position of the Earth in the Earth's orbit at the vernal equinox will affect the start and end times of the seasons, as well as the timing of perihelion and aphelion. The position of the Earth at the equinox moves slowly westward along the Earth's orbit, and about every year, the position of the equinox moves one week in the Earth's orbit. The timing of the spring equinox solar term is postponed by one day every 70 years. Today, summer in the Northern Hemisphere is far away, and summer is 8 days longer than winter. After about a year, it will become a winter day, and winter will be 8 days longer than summer. In other words, a winter that is not too cold and short will become a cold and long winter.

The tilt of the earth's orbit, also known as the yellow-red corner, is the cause of the four seasons on the earth. Changes in the inclination of the Earth's orbit cause changes in the latitude of the Tropic of Cancer and the Polar Circle, which in turn changes the seasons on Earth. The tilt of the earth orbit causes the Tropic of Cancer to vary between latitude 22.1°-24.4° and the polar circle to vary between 67.°. The time period of change is the year. When the inclination of the ground orbit increases, the latitude of the Tropic of Cancer increases, the latitude of the polar circle decreases, the total annual solar radiation increases at high latitudes, the annual range of cold winter and hot summer, and the annual temperature difference increases, and the total annual solar radiation decreases at low latitudes. When the slope of the ground track decreases, the high latitudes are warm in winter and cool in summer, the annual temperature range is reduced, and the low temperature in summer is more conducive to the development of glaciers.

The global impact of the Ice Age was significant.

The presence of large ice sheets alters the distribution of surface water bodies. During the Late Cenozoic Ice Age, hydrosphere moisture accumulated on land and caused global sea levels to drop by about 100 meters. If all the current surface ice melts, the global sea level will rise by 80~90 meters, and many of the world's large cities and lowlands will be submerged.

During the glacial period, the large ice sheets were thousands of meters thick, and the local part of the earth's crust was subjected to great pressure and slowly declined, and some were lowered by meters, and the basement of the Antarctic continent was lowered below sea level. In Northern Europe, with the disappearance of the Quaternary ice sheet, the earth's crust is slowly rising. This balanced movement of the earth's crust continues today.

The Ice Age changed the distribution of global climate zones, and a large number of warm-loving plant and animal species became extinct.

The appearance of higher terrestrial plants has been basically the same as that of modern times since the middle of the Quaternary period. Due to the alternating changes of glacial and interglacial periods, today's boreal, temperate, subtropical, and tropical flora gradually formed.

The marine invertebrates of the Quaternary are still dominated by bivalves, gastropods, small foraminifera, and hexacor. Terrestrial invertebrates are still dominated by bivalves, gastropods, and mesomorphs.

Among other vertebrates, bony fishes and birds continued to flourish, while amphibians and reptiles did not change much. The evolution of mammals was most evident at this stage, and the emergence and evolution of humans was one of the most important events of the Quaternary. ”

The Quaternary period was the time when birds flourished.

Mammals have become the dominant animals on land.

The evolution of mammals during the Quaternary period was mainly manifested in genera and species rather than in large category renewal.

The first stage of the Quaternary - the early Pleistocene mammals were still characterized by the flourishing and development of artiodactyls, proboscis and new carnivores, and the difference from the Tertiary was the appearance of true elephants, real horses, and real cattle.

Some classes and many genera and species of mammals in the late Pleistocene peritoneum died out or became extinct one after another.

The Three-Eyed people did not all die out after the continent was divided, and their survivors later split into three parts, living in Antarctica, the Indian subcontinent, and the nascent continent of Atlantis.

After the division of the Three-Eyed Continent, the Three-Eyed people in the colonies of Antarctica wanted to justify their rule, so the Prophet (shaman, the first believer in God) claimed that he foresaw the coming of the disaster, so he led the people to flee the disaster land early, and claimed that the people on the continent suffered because of the blasphemy of the gods. In this way, the legend has been passed down from generation to generation, and it has become the "truth".

At that time, Antarctica was not like today's ice and snow, but a warm and livable place, and of course, there were many fierce beasts, so there were not many Three-Eyed people who moved there. As people struggled with the animals around them, they gradually discovered that meditation and superpowers were of little effect on the fight against animals, so they began to strengthen their weapons, and superpowers gradually disappeared in favor of various ways of cooking animals and plants and their strengthening effects on the human body.

Survivors of the Indian continent had already begun to move away from the Indian continent before the impact, and it is believed that the losses from this evacuation were not large, because the plate impact would not be too large, because there was often a large time span and enough time to evacuate. The main trouble is how to find the right new home.

In the early Pleistocene, the people who survived the catastrophe chose Atlantis, the youngest continent, located in the Atlantic Ocean, where there were not many beasts and so on, which was convenient for the early settlement. Later, when the tectonic plate activity was less intense, people moved back to the newly uplifted Indian subcontinent, which had calmed down.

The Atlantean civilization is a high-level summary of ancient civilizations, who invented crystal systems that can aggregate sunlight and magnetic energy, which act like lasers or controlled magnetic weapons. In the early days they were used to improve one's health and spiritual cultivation or cultivation, but later they were used in warfare.

Atlantis was technologically advanced, setting up its own astronomical observatories and geomagnetic and solar energy harvesters (pyramids) all over the world. The magnetic energy of all the pyramids is then transmitted to the main island, where it is used to provide energy to the crystal system. The pyramids of the Atlanteans have been found in Egypt, the Maya, Bermuda, and Easter Island. The Mayans, as legend is said today, are descendants of the pyramid guards set up by the Atlanteans in the Americas. The disappearance of the Maya in the later period was also due to the severe lack of population to continue the existence of the race.

The next chapter introduces the most recent human ancestor of the yellow race, ~ Homo sapiens.