thealtf4psychic's definitions
Comprising of the Paleoproterozoic, Mesoproterozoic and Neoproterozoic Eras, This eon spans from 2.5 billion years ago to 541 million years ago lasting almost 2 billion years.
During the beginning of this eon, cyanobacteria rapidly reproduced and photosynthesized turning a lot of carbon dioxide to oxygen. This oxygen reacted with the iron in the oceans, filling the oceans with iron rust BIFs, turning the oceans blood red. Later, there was no longer enough iron to hold onto the oxygen, and it escaped into the atmosphere. That oxygen formed the ozone layer. Nearly all of the carbon dioxide turned into oxygen, turning earth into a snowball earth.
The snowball earth quickly recovered after 300 million years. Then, supercontinent Columbia formed. For the next billion years, climate remained notably stable. This period of time from 1.8 billion years to 800 million years ago was called "The boring billion". During this period, supercontinent Rodinia formed, but broke apart. The rocks that became exposed sucked up more carbon dioxide from volcanoes, turning earth into a second snowball earth.
After that recovered, the two halves of Rodinia reunited around the South Pole forming supercontinent Pannotia. However, it broke apart during the end of the eon just as animals started to appear, as Laurentia rifted away from the rest of the supercontinent. Finally, the End-Ediacaran extinction event took place to end the eon.
During the beginning of this eon, cyanobacteria rapidly reproduced and photosynthesized turning a lot of carbon dioxide to oxygen. This oxygen reacted with the iron in the oceans, filling the oceans with iron rust BIFs, turning the oceans blood red. Later, there was no longer enough iron to hold onto the oxygen, and it escaped into the atmosphere. That oxygen formed the ozone layer. Nearly all of the carbon dioxide turned into oxygen, turning earth into a snowball earth.
The snowball earth quickly recovered after 300 million years. Then, supercontinent Columbia formed. For the next billion years, climate remained notably stable. This period of time from 1.8 billion years to 800 million years ago was called "The boring billion". During this period, supercontinent Rodinia formed, but broke apart. The rocks that became exposed sucked up more carbon dioxide from volcanoes, turning earth into a second snowball earth.
After that recovered, the two halves of Rodinia reunited around the South Pole forming supercontinent Pannotia. However, it broke apart during the end of the eon just as animals started to appear, as Laurentia rifted away from the rest of the supercontinent. Finally, the End-Ediacaran extinction event took place to end the eon.
Imagine living during the middle of the Proterozoic Eon! There would be no plants, no animals, just water, land and bacteria!
by thealtf4psychic March 30, 2021
Get the Proterozoic Eonmug. An MTR line that originates from its terminus at Kennedy Town and ends at its other terminus at Chai Wan.
History:
1985 - Island Line from Admiralty to Chai Wan is built, where Admiralty and Central are interchange stations with Tsuen Wan Line.
1986 - Island Line is extended west to Sheung Wan via Central.
1989 - Kwun Tong Line is extended across Victoria Harbour to Quarry Bay station.
2001 - Kwun Tong Line is further extended to North Point to relieve the congestion in Quarry Bay.
2002 - Tseung Kwan O Line takes over the section of Kwun Tong Line from North Point to just south of Lam Tin. The interchange stations remain in place.
2014 - Island Line is extended west to Kennedy Town, with a new station HKU.
2015 - Sai Ying Pun station is added later between HKU and Sheung Wan due to a construction delay.
History:
1985 - Island Line from Admiralty to Chai Wan is built, where Admiralty and Central are interchange stations with Tsuen Wan Line.
1986 - Island Line is extended west to Sheung Wan via Central.
1989 - Kwun Tong Line is extended across Victoria Harbour to Quarry Bay station.
2001 - Kwun Tong Line is further extended to North Point to relieve the congestion in Quarry Bay.
2002 - Tseung Kwan O Line takes over the section of Kwun Tong Line from North Point to just south of Lam Tin. The interchange stations remain in place.
2014 - Island Line is extended west to Kennedy Town, with a new station HKU.
2015 - Sai Ying Pun station is added later between HKU and Sheung Wan due to a construction delay.
by thealtf4psychic October 14, 2022
Get the Island Linemug. Pangea is by far the most famous and the most recent supercontinent. Spanning from the Pennsylvanian epoch, the second one in the Carboniferous period to the early Jurassic period, This supercontinent allowed animals and plants to spread and roam all over the land. It has been proven that fossils around this time were pretty much global and not restricted to specific continents. It formed with the closure of the Rheic Ocean and broke apart with the opening of the Atlantic Ocean.
Before Pangea, there were two continents called Laurasia and Gondwana (sometimes called Gondwanaland), and after Pangea broke apart, there were two continents too, also called well... Laurasia and Gondwana. The early Laurasia and Gondwana are sometimes called Paleolaurasia and Paleogondwana to prevent mixup of the names.
The name of Pangea originated from Greek where Pan means all and Gaia means earth. The name of Laurasia is made from concatenating the names of the Laurentia Craton (Today's North America) and Asia. Gondwana means "Land of Gonds (a tribe in India)".
Before Pangea, there were two continents called Laurasia and Gondwana (sometimes called Gondwanaland), and after Pangea broke apart, there were two continents too, also called well... Laurasia and Gondwana. The early Laurasia and Gondwana are sometimes called Paleolaurasia and Paleogondwana to prevent mixup of the names.
The name of Pangea originated from Greek where Pan means all and Gaia means earth. The name of Laurasia is made from concatenating the names of the Laurentia Craton (Today's North America) and Asia. Gondwana means "Land of Gonds (a tribe in India)".
Living in Pangea would be like living together with your friends wherever you go and not having to cross oceans with ships or planes.
by thealtf4psychic April 21, 2021
Get the Pangeamug. Comprising of the Paleozoic, Mesozoic and Cenozoic eras, this eon spans 541 million years from the Cambrian Explosion to today.
During the Paleozoic era, complex life started to appear. It took 100 million years for the aquatic plants and animals to migrate to land. Then, another 130 million years later, giant bugs started to appear. 60 million years later, entire coalfields from the Carboniferous Rainforest Collapse Event were set on fire by volcanic activity, causing the Permian-Triassic extinction. The Mesozoic era had begun.
20 million years later, dinosaurs started to appear. They died altogether during the Cretaceous-Paleogene extinction 66 million years ago beginning the Cenozoic era. The mammals started to dominate land. 60 million years later, the Mediterranean Sea drained up, but quickly refilled due to closure and reopening of the Strait of Gibraltar. 6 million years later, humans finally appeared, ending the story of earth's life as we knew it.
During the Paleozoic era, complex life started to appear. It took 100 million years for the aquatic plants and animals to migrate to land. Then, another 130 million years later, giant bugs started to appear. 60 million years later, entire coalfields from the Carboniferous Rainforest Collapse Event were set on fire by volcanic activity, causing the Permian-Triassic extinction. The Mesozoic era had begun.
20 million years later, dinosaurs started to appear. They died altogether during the Cretaceous-Paleogene extinction 66 million years ago beginning the Cenozoic era. The mammals started to dominate land. 60 million years later, the Mediterranean Sea drained up, but quickly refilled due to closure and reopening of the Strait of Gibraltar. 6 million years later, humans finally appeared, ending the story of earth's life as we knew it.
by thealtf4psychic April 16, 2021
Get the Phanerozoic Eonmug. Rodinia is a relatively famous supercontinent that existed towards the end of the Proterozoic Eon. Nevertheless, many people don't know it. It existed from the Stenian period to right before the Cryogenian period encompassing nearly all of the Tonian period.
It was almost exactly on the opposite side of where Pangea formed. It turned inside out during the Cryogenian period to become Pannotia, leaving out exposed rocks that sucked up carbon dioxide, thus causing a snowball earth. Pannotia somehow still didn't make it into the Phanerozoic Eon.
Rodinia wasn't by itself unlike other supercontinents. It had a continent to the west of it as its companion. Made of parts of South America and Africa, this continent was called Congo. While Rodinia turned itself inside out, Congo got caught in between the two halves, completing Pannotia.
It was almost exactly on the opposite side of where Pangea formed. It turned inside out during the Cryogenian period to become Pannotia, leaving out exposed rocks that sucked up carbon dioxide, thus causing a snowball earth. Pannotia somehow still didn't make it into the Phanerozoic Eon.
Rodinia wasn't by itself unlike other supercontinents. It had a continent to the west of it as its companion. Made of parts of South America and Africa, this continent was called Congo. While Rodinia turned itself inside out, Congo got caught in between the two halves, completing Pannotia.
Jack who lives in eastern South America: Bruh, my point 800 million years ago was in Congo and not in the rest of Rodinia. Why were the bacteria that lived where I am not able to party with everyone else until 720 million years ago? I feel bad for them.
Kate who lives in western Africa: The bacteria that lived where I am partied with the bacteria that lived where you are for billions of years! Don't feel bad when it comes to paleogeography or paleontology. There are always good things behind terrible extinction events and isolation from everyone else.
Kate who lives in western Africa: The bacteria that lived where I am partied with the bacteria that lived where you are for billions of years! Don't feel bad when it comes to paleogeography or paleontology. There are always good things behind terrible extinction events and isolation from everyone else.
by thealtf4psychic April 19, 2021
Get the Rodiniamug. This is the biggest SSR (Soviet Socialist Republic) of the Soviet Union, in both size and right. It is abbreviated P.C.F.C.P. (sometimes P.C.Ф.C.P. as the Russian Ф pronounces the same as English F) (originates from Russian form: Российская Советская Федеративная Социалистическая Республика) and R.S.F.S.R. Its modern counterpart is the Russian Federation since 1991.
Jim: I was born on December 11 1991 in the Russian Soviet Federative Socialist Republic, but only for one day. It became Russia the moment I was 1 day old.
by thealtf4psychic July 15, 2021
Get the Russian Soviet Federative Socialist Republicmug. The ultimate level of boredom. Typing the top-left corner checkerboard then the non-top-left corner checkerboard.
qetuosfhkzcbm and wryipadgjlxvn.
qetuosfhkzcbm and wryipadgjlxvn.
Someone whos fed up with playing chess: lemme search qetuosfhkzcbmwryipadgjlxvn lol WAIT URBDIC DOESN'T HAVE THIS WORD?!
by thealtf4psychic June 27, 2021
Get the qetuosfhkzcbmwryipadgjlxvnmug.