James Ross Island
| James Ross Island | ||
|---|---|---|
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| Waters | Weddell Sea | |
| Archipelago | Ross Islands | |
| Geographical location | 64 ° 10 ′ S , 57 ° 45 ′ W | |
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| length | 75 km | |
| width | 64 km | |
| surface | 2 378 km² | |
| Highest elevation |
Mount Haddington 1630 m |
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| Residents | uninhabited | |
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The James Ross Island ( English James Ross Island ) is a large island on the northeastern tip of the Antarctic Peninsula , from which it is separated by the Prince Gustav Channel . To the southeast, behind the Admiralty Strait , are the smaller neighboring islands of Snow Hill Island , Seymour Island , Lockyer Island and Cockburn Island and to the north Vega Island . James Ross Island is 75 km long in north-south direction and 64 km wide in east-west direction, its area is 2378 km². In Mount Haddington , the island reaches its greatest height at 1630 meters. James Ross Island is not to be confused with Ross Island , which is also off Antarctica , but in the Ross Sea .
The James Ross Island consists of a large, mainly in the Miocene and Pliocene incurred stratovolcano . Volcanic activity lasted into the Holocene ; some flank volcanoes east of the main summit are said to be only a few thousand years old.
In 1986, the fossilized bones of an ankylosaur were found on James Ross Island, which was described in 2006 under the name Antarctopelta . It was the first documented find of a dinosaur in Antarctica.
In 1903 the island was mapped by the Swedish Antarctic Expedition led by Otto Nordenskjöld , who named it after James Clark Ross . He had discovered it during an expedition in the years 1842–1843, but did not recognize its island character.
On the Ulu Peninsula on the northern tip of James Ross Island, the Czech Republic operates the Mendel polar station , which is only manned in the Antarctic summer.
literature
- William James Mills: Exploring Polar Frontiers - A Historical Encyclopedia , Vol. 1, ABC-CLIO, 2003, ISBN 1-57607-422-6 , p. 331 (English)
- Otto Nordenskjöld: Scientific results of the Swedish south polar expedition 1901-1903 . Vol. 1, Delivery 1: The Swedish South Polar Expedition and its geographic activity , Lithographic Institute of the General Staff, Stockholm 1911
- John L. Smellie, JS Johnson, AE Nelson: Geological Map of James Ross Island. I. James Ross Island volcanic group (1: 125,000). BAS GEOMAP 2 Series, Sheet 5, British Antarctic Survey, Cambridge (UK) 2018 (English)
Web links
- James Ross Island in the Global Volcanism Program of the Smithsonian Institution .
Individual evidence
- ^ BJ Davies, JL Carrivick, NF Glasser, MJ Hambrey, JL Smellie: A new glacier inventory for 2009 reveals spatial and temporal variability in glacier response to atmospheric warming in the Northern Antarctic Peninsula, 1988–2009 (PDF; 4 MB). In: The Cryosphere Discuss. 5, 2011, pp. 3541–3594 (English)
- ↑ Leonardo Salgado, Zulma Gasparini: Reappraisal of an ankylosaurian dinosaur from the Upper Cretaceous of James Ross Island (Antarctica) . In: Geodiversitas 28 (1), 2006, pp. 119–135 (English)