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Antarctica and notable BC world events

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posted on Jul, 26 2017 @ 03:05 PM
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Antarctica and notable BC World Events



Antarctica is a frozen desert and coldest continent on Earth with much of the continent more than 3,000 m (9,800 ft) above sea level. It is divided in two by the Transantarctic Mountains in the West and much larger East Antarctica.

About 98% of Antarctica is covered in ice averaging at least 1.6 km (1.0 mi) thick. The continent has about 90% of the world's ice (and thereby about 70% of the world's fresh water).

More than 170 million years ago, Antarctica was part of the super-continent Gondwana. Over time, Gondwana gradually broke apart and “Antarctica” as we know it today was formed around 25 million years ago. Antarctica was not always on the South Pole and at a number of points in its history, it was farther north, with a tropical or temperate climate that was covered in forests, and inhabited by various ancient life forms.





Wiki

Antarctica Periods and notable BC World Events:

540–250 Ma: The accepted hypothesis seem to be that during the Cambrian period Western Antarctica was partially in the Northern Hemisphere because of the deposited of large amounts sandstone, limestone and shale’s. Eastern Antarctica was at the equator, where sea floor invertebrates and trilobites flourished in the tropical seas. Glaciations began at the end of the Devonian period (360 Ma) as Gondwana moved closer to the South Pole and the climate cooled
~250 mya: Impact Wilkes Land, Antarctica (??/500km)
206–146 mya: Here we find some evidence that the Western Antarctic Peninsula began to form during the Jurassic period as islands gradually rose out of the ocean due to igneous intrusions and volcanism. There is also some evidence suggesting an Antarctic marine glaciation during the Cretaceous period
160 mya: Africa separated from Antarctica in the Jurassic
160–66 mya: It was during this era that Gondwana began to break up and the Indian subcontinent also separated at around 125 Ma
66 mya: Antarctica (still connected to Australia) had a subtropical climate and flora, complete with a marsupial fauna
48–40 mya: Australia-New Guinea separated from Antarctica, and the first ice began to appear and global temperature start dropping 10°C as well as the CO2 levels that steadily decrease during the Eocene epoch (55.8–34 mya)
35.6 mya: Impact Chesapeake Bay, Virginia, USA, and Popigai, Russia (??/90km and ??/100km)
23 mya: The ice began to spread, replacing the forests
15 mya: The continent is now mostly covered with ice
14–6 mya: Antarctica separates from South America and the gap widens between Australia and the global temperature drops by 4°C more
3–4 mya: After that the Pleistocene ice age the whole continent of Antarctica was covered in ice and all major plant life destroyed. Accumulation of ice at both poles causing the global climate to become even colder and drier
2.1 mya: Volcano Yellowstone super-volcanic eruption
1.3 mya: Volcano Yellowstone super-volcanic eruption
1.3 mya–820,000 yrs ago: Sherwin Glaciation
1–0.9 mya: This is where the stronger 41,000 Milankovitch cycle gets overwhelmed by the weaker 100,000 year cycle due to the accumulated ice on Antarctica Thread
680,000–620,000 yrs ago: Günz/Nebraskan glacial period
640,000 yrs ago: Volcano Yellowstone super-volcanic eruption
455,000–300,000 yrs ago: Mindel/Kansan glacial period
200,000–130,000 yrs ago: Riss/Illinoian glacial period
125,000–110,000 yrs ago: Climate Eemian stage or Riss/Würm inter-glacial period
110,000–11,400 yrs ago: Start of Würm/Wisconsin glacial period
74,000 yrs ago: Volcano Toba volcanic eruption
70,000 yrs ago: Tahoe glacial maximum glaciers cover Canada and northern US
~26,500 years ago: Volcano[color= beige] & Atmosphere Taupo eruption VEI-8, New Zealand (Super eruption)
22,000 yrs ago: Tioga glacial maximum sea level was 130 meters lower than today
19,000 yrs ago: Climate Antarctic sea ice starts melting
~12,900-11,600 years ago: (Climate & Extinction – The warming period was interrupted - Younger Dryas cooling period begins. Extinction of the American Clovis culture, mega-fauna, the mammoth and sabre-tooth cat etc.
[color= beige]12,657 years ago – Atmosphere
– GISP2 ice core event
9,400 BC: Climate – Warming sea levels rise is now 91 meters (300 ft) since the ice-age
[color= beige]9,258 BC – Atmosphere – GISP2 ice core event
6,225-6,170 BC – Landslide & Tsunami – The Storegga Slides occurred 100 km North-West of the Møre coast in the Norwegian Sea, causing a very large tsunami
5,000 BC: Impact – Zerelia West, Thessaly, Greece (??/250km)
5,000 BC: Impact – Zerelia East, Thessaly, Greece (??/150km)
5,000 BC: Impact – Macha, Russia (??/30m)
3,600 BC: Earthquake, Landslide & Tsunami – At the coast of Peru researchers found the disappeared of the Supe people coincided with earthquakes and landslides followed by massive flooding
2,200 BC: Impact – Henbury, Northern Territory, Australia multiple impacts

1,900 BC (±150years) – Unexplained – The Harappan civilization mysteriously disappeared in South Asia one or more quakes could have blocked or diverted the water that flowed through the now dry riverbed. That would have turn the part of the Harappan region into the desert it is today destroying the Harappan civilization in the process
1,613 BC: (±7 years) – Volcano, Landslide, Tsunami & Atmosphere – The "Minoan eruption" of Santorini. Mount Thera explode VEI-7 in Greece with massive landslides, and tsunamis that effects the atmosphere
373 BC: Earthquake, Landslide & Tsunami – Magnitude estimated at 7.3, Greece - the Greek city of Helike was submerged and destroyed causing a tsunami. Historians recorded that the rats, snakes and weasels had abandoned Helice just days before the quake struck – Also linked to the disappearance of Atlantis by some

edit on 1C172017-07-26T15:12:31-05:00WednesdayAmerica/Chicago2 by ICycle2 because: Mistakes




posted on Jul, 26 2017 @ 03:05 PM
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Additional info up to 0400 - due to the constant copy/paste between lists and color coding, dates of interest must be double checked for mistakes

09 AD Unexplained – The Mayan the cities of Quirigua and Benque Viejo (Xunantunich), now located in Guatemala and Belize, were suddenly abandoned. Evidence suggested that an earthquake struck the Mesoamerican region in the late 9th century, just as the Mayan Classic Period was collapsing
17 AD: Earthquake – Unknown magnitude in Lydia, Turkey destroying 13 cities at night in the Iron Age kingdom
62 AD: Earthquake & Tsunami – (February 05) Magnitude estimated at 8.0+ in the Bay of Naples, Pompeii, Italy that brought down a large part of Pompeii, caused severe damage in Herculaneum, Nuceria and significant vertical displacement in the island of Crete, Greece where registered at 6.9 as well as western Asia Minor in the modern Western Anatolia, Salihli, Manisa, Turkey
79 AD: Volcano & Atmosphere – (August 24) A Mount Vesuvius eruption estimated around VEI-6, Naples, Italy burying the cities of Pompeii, Herculaneum and Stabiae with a notable effect on the atmosphere
100 AD: Earthquake & Tsunami – Unknown magnitude in the Dian Kingdom, Yunnan, South Western China. Causing a tsunami that flooded the administrative center of the Dian Kingdom most probably killed thousands
115 AD: Earthquake & Tsunami – (December 13) Magnitude estimated at 7.5 in Antioch, Turkey killing around 260,000
230 AD (±16 years): Volcano & Atmosphere – Hatepe eruption VEI-7, Taupo, New Zealand with a notable effect on the atmosphere
342 AD: Earthquake – Unknown magnitude in Antakya, Turkey killing around 40,000
365 AD: Earthquake & Tsunami – (July 21) Magnitude estimated at 8.5 in the Eastern Mediterranean near Crete – Knossos area, affecting Italy, Greece, Palestine, and North Africa. Coastal towns in the region were leveled and a tsunami destroyed the Egyptian port of Alexandria killing around 50,000
382 AD: Earthquake, Landslide & Tsunami – Magnitude estimated at 7.5 in Cape St. Vincent, Portugal. According to Roman history two islets disappeared


All the colors that can be used on ATS



Extinctions - color=red
Volcano’s – Volcanic Explosion Index – VEI7 and above - color=orange
Earthquakes – high death toll, large damaged area or above magnitude 8 - color=brown
Landslides – large slides listed - color=green
Impacts or Space influences – 1km craters and above, or if multiple impacts (Body size/Crater size) - color=purple
Tsunamis and/or flooding – any destructive listed - color=teal
Climate – inside ice-ages or notable cooling periods - color=white only works in combination with bold text
Climate – relatively warm or notable warming periods - color=pink
Climate – Earth is frying - color=maroon
Magnetic field – reversals or influence - color=blue
Atmosphere – only notable events - color=beige
Unexplained - color=yellow



posted on Jul, 26 2017 @ 03:10 PM
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a reply to: ICycle2

What came first???

Supercontinent Rodinia Break Up??? or Supercontinent Gondwana Break Up???
Pretty Sure Rodinia...

Gondwana (It is believed to have sutured about 600 to 530 million years ago, joining East Gondwana to West Gondwana. Gondwana formed prior to Pangaea, and later became part of it)

Rodinia ( assembled 1.3–0.9 billion years ago and broke up 750–633 million years ago.[3][not in citation given] Valentine & Moores 1970 were probably the first to recognise a Precambrian supercontinent, which they named 'Pangaea)
edit on th12Wed, 26 Jul 2017 15:12:55 -0500K201775531pm7 by SirKonstantin because: (no reason given)



posted on Jul, 26 2017 @ 03:23 PM
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a reply to: SirKonstantin

They keep changing names with new hypothesis

~1100 mya: Formation of the supercontinent Rodinia
~750–633 mya: Breakup of Rodinia and formation of the supercontinent Pannotia
~550 mya: Pannotia fragmented into Laurasia and Gondwana
~275 mya: Formation of the supercontinent Pangea which completed with the docking of Africa into North America
~251-199.6 mya Break-up of Pangaea starts during Triassic Period



posted on Jul, 27 2017 @ 11:56 AM
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originally posted by: ICycle2

Antarctica and notable BC World Events



Antarctica is a frozen desert...


That would explain those pyramid shaped structures covered by layers of ice and snow



edit on 27-7-2017 by Skywatcher2011 because: (no reason given)



posted on Jul, 27 2017 @ 12:01 PM
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But the history books still doesn't explain Burmuda Trangle or the lost city of Atlantis



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