The West Antarctic Rift is a major, active rift valley lying between East and West Antarctica. It encompasses the Ross Sea, the area under the Ross Ice Shelf and a part of West Antarctica. Its evolution is due to lithospheric thinning of the non-cratonic area of West Antarctica.
Exploration of the geology of the West Antarctic Rift is difficult, because, apart from peaks of the Transantarctic Mountains that protrude above the ice, the region is covered by the vast West Antarctic Ice Sheet. Thus, the rift is less well known than other major rift valleys. It is known, however, that like the East African Rift, the West Antarctic Rift is actually a number of much shorter rifts that cross Antarctica. There is also a sharp division between older, broader Paleogene rifts including the Ross Sea Basin and the younger, narrower Terror Rift. There are also a large number of failed rifts extending as far as Berkner Island.
Although many rifts within the West Antarctic Rift system are no longer active, it is now known that West Antarctica is moving away from the East Antarctic Craton in a north/northeasterly direction (approximately in the direction of the South Georgia Islands) at a rate of about 2mm per year or 500,000 years per kilometre.
The Antarctic (US English /æntˈɑːrktɪk/, UK English /ænˈtɑːrktɪk/ or /æntˈɑːrtɪk/ and /ænˈtɑːrtɪk/ or /ænˈɑːrtɪk/) is a polar region, specifically the region around the Earth's South Pole, opposite the Arctic region around the North Pole. The Antarctic comprises the continent of Antarctica and the ice shelves, waters, and island territories in the Southern Ocean situated south of the Antarctic Convergence. The region covers some 20% of the Southern Hemisphere, of which 5.5% (14 million km2) is the surface area of the continent itself.
Geography
The maritime part of the region constitutes the area of application of the international Convention for the Conservation of Antarctic Marine Living Resources (CCAMLR), where for technical reasons the Convention uses an approximation of the Convergence line by means of a line joining specified points along parallels of latitude and meridians of longitude. The implementation of the Convention is managed through an international Commission headquartered in Hobart, Australia, by an efficient system of annual fishing quotas, licenses and international inspectors on the fishing vessels, as well as satellite surveillance.
Antarctic was a Swedishsteamship built in Drammen, Norway in 1871. She was used on several research expeditions to the Arctic region and to Antarctica through 1898-1903. In 1895 the first confirmed landing on the mainland of Antarctica was made from this ship.
The ship
Antarctic was a barque with three masts and equipped with a steam engine. Build in 1871 at Holmen in Drammen under the name Cap Nor.
In the early 1890s Norwegian ship-owner Svend Foyn wanted to expand his business to the Antarctic Ocean thereby needing capable ships. Foyn then purchased Cap Nor, made extensive repairs and after completion renamed the ship Antarctic. From 1893 the ship was deployed to the Antarctic ocean for whale hunting.
In 1897 the ship was purchased by Alfred Gabriel Nathorst for his planned expedition to Svalbard. Again extensive repairs were made prior to the expedition in 1898.
A 4 minute narrated animation showing that the current pattern of ice thinning observed in West Antarctica is inherently influenced by geological processes over millions of years.
published: 26 Jul 2012
23.2 Roi Granot - The successful life of a failed rift: the West Antarctic Rift System case
published: 01 Jun 2021
A Major Rift in the Pine Island Glacier in Western Antarctica
In October, 2011, NASA's Operation IceBridge discovered a major rift in the Pine Island Glacier in western Antarctica. This crack, which extends at least 18 miles and is 50 meters deep, could produce an iceberg more than 800 square kilometers in size. IceBridge scientists returned soon after to make the first-ever detailed airborne measurements of a major iceberg calving in progress.
Credit: NASA/Goddard/Jefferson Beck
published: 03 Nov 2011
Watch A Camera Drop Into A Hole Beneath Antarctica
Largest Volcanic Region on Earth! Under West Antarctica's Ice Sheet! -Research Reveals
Largest Volcanic Region on Earth! Under West Antarctica's Ice Sheet! -Research Reveals
Links -
1) https://www.sciencedaily.com/releases/2017/08/170814092735.htm
2) Thumbnail image - Antarctica volcanoes Getty.jpg
3) Music -Golet's slaves - Filmora music, Hydra, Eureka by Huma Huma, Youtube Audio Library,
Ambient Ambulance by Jingle Punks, Marianas,
Youtube Audio Library
--
Please Support:
The Real MLordandGod
https://www.youtube.com/channel/UCHg2...
--
Life Health Today (Youtube Channel)
https://www.youtube.com/channel/UCuyZ...
1) PATREON: https://www.patreon.com/mlordandgod
2) FACEBOOK: https://www.facebook.com/mlordandgod2/
3) TWITTER: https://twitter.com/mlordandgod
4) D-Tube: https://d.tube/#!/c/truthseekernews
published: 11 Sep 2019
See the Huge Crack in West Antarctica Before Iceberg Broke Off | National Geographic
A giant iceberg the size of Delaware has broken off the Larsen C Ice Shelf in West Antarctica. This footage from February 2017 shows a major rift in the ice shelf before the iceberg broke free. The newly independent iceberg is one of the largest ever recorded. Warming waters caused by climate change will continue to accelerate the melting of ice around the world.
➡ Subscribe: http://bit.ly/NatGeoSubscribe
About National Geographic:
National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible.
Get More National Geographic:
Official Site: http://bit.ly/NatGeoOfficialSite
Facebook: http:/...
published: 17 Jul 2017
The Hidden Secrets Beneath the Ice in Antarctica.
The Hidden Secrets Beneath the Ice in Antarctica.
Have you ever thougt abour what's under the ice of Antarctica? In this video we share with you
published: 04 Dec 2023
Animation - Loss of West Antarctic Glaciers Appears Unstoppable
A new study by researchers at NASA and the University of California, Irvine, finds a rapidly melting section of the West Antarctic Ice Sheet appears to be in an irreversible
state of decline, with nothing to stop the glaciers in this area from melting into the sea. The animations goes with the release at: http://www.jpl.nasa.gov/news/news.php?release=2014-148
published: 12 May 2014
Current Affairs-18-08-2017-West Antarctic Rift system-World's largest volcanic region
www.comeonindia.com
published: 16 Aug 2017
High geothermal heat beneath West Antarctica glacier responsible for its melting
Please Thank You Very Much: http://www.youtube.com/channel/UCPh3NMi8rcwTwclsZ36Nuvg?sub_confirmation=1
Thank for watching
A 4 minute narrated animation showing that the current pattern of ice thinning observed in West Antarctica is inherently influenced by geological processes over...
A 4 minute narrated animation showing that the current pattern of ice thinning observed in West Antarctica is inherently influenced by geological processes over millions of years.
A 4 minute narrated animation showing that the current pattern of ice thinning observed in West Antarctica is inherently influenced by geological processes over millions of years.
In October, 2011, NASA's Operation IceBridge discovered a major rift in the Pine Island Glacier in western Antarctica. This crack, which extends at least 18 mil...
In October, 2011, NASA's Operation IceBridge discovered a major rift in the Pine Island Glacier in western Antarctica. This crack, which extends at least 18 miles and is 50 meters deep, could produce an iceberg more than 800 square kilometers in size. IceBridge scientists returned soon after to make the first-ever detailed airborne measurements of a major iceberg calving in progress.
Credit: NASA/Goddard/Jefferson Beck
In October, 2011, NASA's Operation IceBridge discovered a major rift in the Pine Island Glacier in western Antarctica. This crack, which extends at least 18 miles and is 50 meters deep, could produce an iceberg more than 800 square kilometers in size. IceBridge scientists returned soon after to make the first-ever detailed airborne measurements of a major iceberg calving in progress.
Credit: NASA/Goddard/Jefferson Beck
Largest Volcanic Region on Earth! Under West Antarctica's Ice Sheet! -Research Reveals
Links -
1) https://www.sciencedaily.com/releases/2017/08/170814092735.htm...
Largest Volcanic Region on Earth! Under West Antarctica's Ice Sheet! -Research Reveals
Links -
1) https://www.sciencedaily.com/releases/2017/08/170814092735.htm
2) Thumbnail image - Antarctica volcanoes Getty.jpg
3) Music -Golet's slaves - Filmora music, Hydra, Eureka by Huma Huma, Youtube Audio Library,
Ambient Ambulance by Jingle Punks, Marianas,
Youtube Audio Library
--
Please Support:
The Real MLordandGod
https://www.youtube.com/channel/UCHg2...
--
Life Health Today (Youtube Channel)
https://www.youtube.com/channel/UCuyZ...
1) PATREON: https://www.patreon.com/mlordandgod
2) FACEBOOK: https://www.facebook.com/mlordandgod2/
3) TWITTER: https://twitter.com/mlordandgod
4) D-Tube: https://d.tube/#!/c/truthseekernews
A giant iceberg the size of Delaware has broken off the Larsen C Ice Shelf in West Antarctica. This footage from February 2017 shows a major rift in the ice she...
A giant iceberg the size of Delaware has broken off the Larsen C Ice Shelf in West Antarctica. This footage from February 2017 shows a major rift in the ice shelf before the iceberg broke free. The newly independent iceberg is one of the largest ever recorded. Warming waters caused by climate change will continue to accelerate the melting of ice around the world.
➡ Subscribe: http://bit.ly/NatGeoSubscribe
About National Geographic:
National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible.
Get More National Geographic:
Official Site: http://bit.ly/NatGeoOfficialSite
Facebook: http://bit.ly/FBNatGeo
Twitter: http://bit.ly/NatGeoTwitter
Instagram: http://bit.ly/NatGeoInsta
Click here to read "The Larsen C Ice Shelf Collapse Is Just the Beginning—Antarctica Is Melting".
http://www.nationalgeographic.com/magazine/2017/07/antarctica-sea-level-rise-climate-change/
See the Huge Crack in West Antarctica Before Iceberg Broke Off | National Geographic
https://youtu.be/3qFYoVeKof4
National Geographic
https://www.youtube.com/natgeo
A giant iceberg the size of Delaware has broken off the Larsen C Ice Shelf in West Antarctica. This footage from February 2017 shows a major rift in the ice shelf before the iceberg broke free. The newly independent iceberg is one of the largest ever recorded. Warming waters caused by climate change will continue to accelerate the melting of ice around the world.
➡ Subscribe: http://bit.ly/NatGeoSubscribe
About National Geographic:
National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible.
Get More National Geographic:
Official Site: http://bit.ly/NatGeoOfficialSite
Facebook: http://bit.ly/FBNatGeo
Twitter: http://bit.ly/NatGeoTwitter
Instagram: http://bit.ly/NatGeoInsta
Click here to read "The Larsen C Ice Shelf Collapse Is Just the Beginning—Antarctica Is Melting".
http://www.nationalgeographic.com/magazine/2017/07/antarctica-sea-level-rise-climate-change/
See the Huge Crack in West Antarctica Before Iceberg Broke Off | National Geographic
https://youtu.be/3qFYoVeKof4
National Geographic
https://www.youtube.com/natgeo
A new study by researchers at NASA and the University of California, Irvine, finds a rapidly melting section of the West Antarctic Ice Sheet appears to be in an...
A new study by researchers at NASA and the University of California, Irvine, finds a rapidly melting section of the West Antarctic Ice Sheet appears to be in an irreversible
state of decline, with nothing to stop the glaciers in this area from melting into the sea. The animations goes with the release at: http://www.jpl.nasa.gov/news/news.php?release=2014-148
A new study by researchers at NASA and the University of California, Irvine, finds a rapidly melting section of the West Antarctic Ice Sheet appears to be in an irreversible
state of decline, with nothing to stop the glaciers in this area from melting into the sea. The animations goes with the release at: http://www.jpl.nasa.gov/news/news.php?release=2014-148
A 4 minute narrated animation showing that the current pattern of ice thinning observed in West Antarctica is inherently influenced by geological processes over millions of years.
In October, 2011, NASA's Operation IceBridge discovered a major rift in the Pine Island Glacier in western Antarctica. This crack, which extends at least 18 miles and is 50 meters deep, could produce an iceberg more than 800 square kilometers in size. IceBridge scientists returned soon after to make the first-ever detailed airborne measurements of a major iceberg calving in progress.
Credit: NASA/Goddard/Jefferson Beck
A giant iceberg the size of Delaware has broken off the Larsen C Ice Shelf in West Antarctica. This footage from February 2017 shows a major rift in the ice shelf before the iceberg broke free. The newly independent iceberg is one of the largest ever recorded. Warming waters caused by climate change will continue to accelerate the melting of ice around the world.
➡ Subscribe: http://bit.ly/NatGeoSubscribe
About National Geographic:
National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible.
Get More National Geographic:
Official Site: http://bit.ly/NatGeoOfficialSite
Facebook: http://bit.ly/FBNatGeo
Twitter: http://bit.ly/NatGeoTwitter
Instagram: http://bit.ly/NatGeoInsta
Click here to read "The Larsen C Ice Shelf Collapse Is Just the Beginning—Antarctica Is Melting".
http://www.nationalgeographic.com/magazine/2017/07/antarctica-sea-level-rise-climate-change/
See the Huge Crack in West Antarctica Before Iceberg Broke Off | National Geographic
https://youtu.be/3qFYoVeKof4
National Geographic
https://www.youtube.com/natgeo
A new study by researchers at NASA and the University of California, Irvine, finds a rapidly melting section of the West Antarctic Ice Sheet appears to be in an irreversible
state of decline, with nothing to stop the glaciers in this area from melting into the sea. The animations goes with the release at: http://www.jpl.nasa.gov/news/news.php?release=2014-148
The West Antarctic Rift is a major, active rift valley lying between East and West Antarctica. It encompasses the Ross Sea, the area under the Ross Ice Shelf and a part of West Antarctica. Its evolution is due to lithospheric thinning of the non-cratonic area of West Antarctica.
Exploration of the geology of the West Antarctic Rift is difficult, because, apart from peaks of the Transantarctic Mountains that protrude above the ice, the region is covered by the vast West Antarctic Ice Sheet. Thus, the rift is less well known than other major rift valleys. It is known, however, that like the East African Rift, the West Antarctic Rift is actually a number of much shorter rifts that cross Antarctica. There is also a sharp division between older, broader Paleogene rifts including the Ross Sea Basin and the younger, narrower Terror Rift. There are also a large number of failed rifts extending as far as Berkner Island.
Although many rifts within the West Antarctic Rift system are no longer active, it is now known that West Antarctica is moving away from the East Antarctic Craton in a north/northeasterly direction (approximately in the direction of the South Georgia Islands) at a rate of about 2mm per year or 500,000 years per kilometre.
This rise is linked to a geological feature called the WestAntarcticRiftSystem... The researchers suggest similar river systems exist today in places with geological features like the West Antarctic Rift System.
Their study, recently published in AGU Advances, shows that a 6.5-mile (10.5 kilometer) crack formed in 2012 on Pine Island Glacier—a retreating ice shelf that holds back the larger WestAntarctic ice sheet—in about five and a half minutes.
It lies on the eastern boundary of the actively rifting Great Basin...Erebus lies along the margin of the WestAntarcticRiftSystem, originating tens of millions of years ago and continuing today.
It lies on the eastern boundary of the actively rifting Great Basin...Erebus lies along the margin of the WestAntarcticRiftSystem, originating tens of millions of years ago and continuing today.