What is the Carboniferous period and what caused the Carboniferous period to end

When was the Carboniferous period?

The end of the Carboniferous period was due to the drastic changes in the earth's environment at that time, also known as the "Carboniferous rainforest collapse event".

The collapse of the Carboniferous rainforest:

The huge amount of oxygen in the Carboniferous period brought unprecedented life to the earth, but also provided the raw materials for combustion. Towering forests are abundant fuel, and during lightning thunderstorms, all it takes is a spark from lightning to cause a forest fire, and the dense continuous forest can keep the fire burning for months. It wasn't like there were firefighters fighting fires like they do now, and our ancestors didn't know where to dig the earth.

This is the Carboniferous coal burning incident, which has very little information, and it seems that it has not been recognized and has not had a great impact.

The real danger is not forest fires, but drastic changes in the planet's environment.

The birth of lignin was so sudden that in the early days of the tall forest, the fungus on Earth, which is the decomposer, probably did not produce the enzymes that could break them down.

As a result, more and more carbon is trapped in the plant body and cannot be broken down to re-enter the carbon cycle. After tens of millions of years of lignin accumulation, carbon dioxide on Earth fell below a critical point during the Carboniferous Kasimov period, about 100 million years ago.

The reduction in carbon dioxide has led to a weakening of the greenhouse effect, with temperatures dropping sharply, from 20 to 12. Glaciers continue to expand, covering millions of square kilometres, forming an Antarctic plateau many times larger than it is today. The consolidation of sea water caused sea levels to drop, ocean currents and monsoons changed as a result, and the climate in the late Carboniferous period gradually became dry and windless, which was a huge blow to the forest.

Most of the Carboniferous forests disappeared, known as the "carboniferous rainforest collapse".

It was precisely because the fungus lacked the energy to decompose lignin that a large amount of coal was formed during the Carboniferous period. After the Carboniferous-Permian, fungi became the main force in degrading forest lignin, and the post-Permian strata were no longer as extensive as those in the Carboniferous. The carbon, which has been fixed in the earth for more than 300 million years, is being released again today, changing our current environment.

Effects of Carboniferous rainforest collapse:

The tall ferns collapsed and were gradually replaced by drought-tolerant, seeded gymnosperms, and the cladoptic forest became a series of separate oases. Without the protection of the rainforest, giant insects struggle to survive, and even the dry climate makes it difficult for them to molt. With the collapse of the rainforest, the large insects gradually became extinct, and the insects developed in the direction of miniaturization, and gradually became the appearance of modern insects in the Mesozoic Era, and arthropods also bid farewell to their last glory.

As if anticipating the development of things, reptiles have evolved the amniotic eggs needed to lay eggs in dry environments, which allows them to travel between different oases. At the time when amphibians and arthropods fell, reptiles survived the most difficult period of the Carboniferous period with their amniotic eggs, and succeeded in ascending to the hegemony of a new generation.

No information was found on the Carboniferous fire. But there is a correlation with the Permian after the Carboniferous, and I hope it can give you a little inspiration. The Permian is the last geological epoch of the Paleozoic Era between 300 million and 100 million years ago, between the Carboniferous and Triassic periods.

The rock layers that define the Permian are relatively distinct, but the precise dating of its beginning and end is controversial. Inaccuracies can be millions of years. The end of the Permian period saw the worst mass extinction event ever recorded, with an estimated 96% of the planet's species extinct, including 95% of marine life and 75% of terrestrial vertebrates.

Trilobites, sea scorpions, and important coral groups have all disappeared. Scientists believe that sea level decline and continental drift occurred during the Permian, which caused the worst mass extinctions. At that time, all the continents gathered into a united ancient continent, the rich coastline was drastically reduced, the continental shelf was also reduced, the ecosystem was severely damaged, and many species became extinct because of the loss of living space.

More seriously, when the shallow continental shelf is exposed, the organic matter that was previously buried in the seafloor is oxidized, a process that consumes oxygen and releases carbon dioxide. It is possible that the amount of oxygen in the atmosphere has decreased, which is very detrimental to animals living on land. As the temperature rises and the sea level rises, many terrestrial organisms have been wiped out, and the ocean has become an oxygen-deficient zone.

The large deposits of organic-rich shale in the strata are proof of this disaster.

The Carboniferous period is a geological time. The Carboniferous period is about 286 million to 360 million years ago, and it can be divided into two periods: the First Carboniferous (also known as the Mississippi, 320 million to 360 million years ago) and the Post-Carboniferous (also known as the Pennsylvanian, 2860 million to 320 million years ago).

The carboniferous period is the fifth epoch of the ancient tung royal leakage era, which began about 100 million to 100 million years ago and continued to rot for 65 million years. During the Carboniferous period, the land area continued to increase, and terrestrial life developed unprecedentedly. The climate was warm and humid, with swamps all over the place.

Large-scale forests appeared on the continent, creating favorable conditions for the formation of coal and demolishing towns.

1 Pinyin 2 English references.

3 annotation shí tàn jì

carboniferous period

Carboniferous is the name of a geological time. The fifth epoch of the Paleozoic Era. From 100 million to 100 million years ago, it lasted about 70 million years.

Because this was a major coal-making age, British geologists Corney Bill (and Phillips) named it Carboniferous in 1822. The strata formed during this period, called the "Carboniferous", are represented by the symbol "C". The Carboniferous period is also divided into three epochs: Early, Middle and Late.

Phytophytologically Aspect. Lycopods, calamites, ferns, pteridosperms, and cordaites flourish like never before. The most common invertebrates are dragonflies (phylum Protozoa, carbopods, an order of foraminifera subclass), brachiopods, and tefracorallia, i.e. rugosa.

In vertebrates, fish and amphibians developed, and reptiles began to appear in the late period. American scholars often divide the Mississippian and Pennsylvanian periods into two periods.

The Carboniferous is defined as the Carboniferous period, which is about 286 million to 360 million years ago in geological time, and can be divided into two periods: the First Carboniferous (also known as the Mississippi, 320 million to 360 million years ago) and the Late Carboniferous (also known as the Pennsylvania, 2860 million to 320 million years ago).

The Carboniferous is defined as the Carboniferous period, which is about 286 million to 360 million years ago in geological time, and can be divided into two periods: the First Carboniferous (also known as the Mississippi, 320 million to 360 million years ago) and the Late Carboniferous (also known as the Pennsylvania, 2860 million to 320 million years ago).

The pinyin of type wide rock is: shítànjì. The structure is:

Stone (semi-enclosed structure), charcoal (upper and lower structure), and Ji (left and right structure).

What is the specific interpretation of the Carboniferous, we will introduce it to you through the following aspects:

Idioms about the Carboniferous period.

In the snow, the charcoal is sent, the people are simmered, the lives are charred, and the Luo Wei Ji sits in the charcoal Gangji.

Words about the Carboniferous.

Defeat the law, chaos and discipline, the living soul is devastated by the group, the gang is wasted, the melon is broken, the age is broken, the age is the gang, the people are on the paint body, swallowing charcoal, sending charcoal in the snow, sitting on the charcoal, and the common people are charred.

Sentence formation about Carboniferous.

1. The ancient continent evolved from crustacean-like organisms in the Carboniferous period, and the reason why it grew so large was because of the high percentage of oxygen in the atmosphere at that time.

2. In the Late Carboniferous, sedimentary rocks (formed by the erosion of the whole rock by external forces of wind and water, and then uniform precipitation) were widely distributed in areas that were likely to be repeatedly flooded;

3. Quickly buried in the hypoxic environment of damp smart pants, just as the medium sank in the Carboniferous, carbon-containing plant material similar to ferns may survive.

4. "The Carboniferous period was rich in marshes and forests, which is the most suitable terrain for deep carbon burial", said Tim of the University of East Anglia in Norwich, England. Layton said.

5. Guizhou is located in the southwest of the Yangtze massif, and Carboniferous bauxite is widely distributed in the central uplift of Guizhou.

During the Carboniferous period, our ancestors were called Archaeopteryx. Archaeopteryx belongs to the family Plesiodondae, a group of early coilosaurs that evolved in the Late Carboniferous. Archaeopteryx is the ancestor of all monobows, including mammals.

Evolution of animals.

Coal.

Explanation of Carbon: i.e. coal. "Sui Shu Wang Shao Biography": "Today's warm wine and roasted meat, with charcoal, firewood, bamboo fire, grass fire, hemp fire, the smell is different. ”

Song Ouyang Xiu "Returning to the Field" Volume 2: "Fragrant cakes, charcoal also." It is used to burn incense, and the fire of a loaf of bread can not be extinguished all day long.

Qing Xu Yisheng's poem "Burning Inkstone": "Burning the surplus charcoal, turning it into a dark frost." Fan Wenlan, Cai Meibiao, et al. Introduction to the General History of China:

At the end of the Eastern Han Dynasty, Cao Cao began to use coal. ”

Finger stone carving: gold stone. Refers to the needle used to heal diseases in ancient times:

Medicine stones. The words of the medicine stone (the words of the metaphor to persuade others).

One of the eight tones of the ancient Chinese musical instrument. Surname. 石 à Chinese municipal capacity unit, 10 buckets for the explanation of charcoal Charcoal à A black fuel that isolates wood from the air and is fired at high heat: charcoal. Carbon. Charcoal. Charcoal painting.

Ancient Poetry:

Tang Dynasty Guan Xiu sent two Chu monks: The iron bowl soup snow is early, and the charcoal tea is late.

Song Dynasty Lu You Lao Qi first arrived in Rongzhou: the hearth piles the beast blazing charcoal, and the tile Ding worm fried autumn tea.

Tang Dynasty Li Qiao Mo: Chang'an divides coal, and the party is loose.

Song Dynasty Su Shi Coal (also cited): Pengcheng was old without coal.

Song Dynasty Wu Zhaoshu looked at Jiangnan and remembered Jiangnan: Sitting on the early foundation furnace of the earth, the drizzle in front of the lamp is good for burning incense.

The pronunciation of Carboniferous is: shítànjì.

The pinyin of the Carboniferous period is: shítànjì. The structures are: stone (semi-enclosed structure) charcoal (upper and lower structure) and epoch (left and right structure).

What is the specific interpretation of the Carboniferous, we will introduce it to you through the following aspects:

1. Explanation of terms [click here to view the details of the plan].

The Carboniferous period is about 286 million to 360 million years ago, and it can be divided into two periods: the First Carboniferous (also known as the Mississippi, 320 million to 360 million years ago) and the Post-Carboniferous (also known as the Pennsylvanian, 2860 million to 320 million years ago).

Idioms about the Carboniferous.

The common people are charred, the sedan chair is charred, the creatures are charred, and the people are charcoaled in the snow, and the charcoal is sent to the charcoal, and the era is wasted.

Words about the Carboniferous.

The lacquer body swallows charcoal, the living soul is charcoal, the melon is broken, the people are empty, the charcoal is wasted, the snow is sent, the charcoal is sent to the Quartet, the people are sitting in the charcoal, and the people are charred.

Sentence formation about Carboniferous.

2. According to the spatial distribution of sedimentary facies, the Grande or Paleoplateau was an isolated carbonate platform in the Carboniferous, surrounded by troughs.

3. The ancient Malu barrage evolved from the Carboniferous, crustacean-like organisms, and the reason why it grew so large was because of the high percentage of oxygen in the atmosphere at that time.

4. Quickly buried in a humid and anoxic environment, just as the medium sank in the Carboniferous, carbon-containing plant material similar to ferns may survive.

5. The collisional orogeny in this area mainly occurred in the Carboniferous and Permian, and underwent an evolutionary process of first extrusion and then extension.