Robertson Island

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Robertson Island
Waters Weddell Sea
Geographical location 65 ° 10 ′  S , 59 ° 37 ′  W Coordinates: 65 ° 10 ′  S , 59 ° 37 ′  W
Robertson Island (Antarctic Peninsula)
Robertson Island
length 21 km
width 9.7 km
surface 165 km²
Residents uninhabited

The Robertson Island ( English Robertson Island ) is an island about 55 km east of the Nordenskjöld coast on the east side of the Antarctic Peninsula in the Weddell Sea . Between this and the island is the last remnant of the Larsen A Ice Shelf, which collapsed in 1995 . In 2002, the Larsen B Ice Shelf dissolved south of the island. A good 100 kilometers further south is the larger and relatively stable Larsen C Ice Shelf . About three kilometers north of Robertson Island is Christensen Island, the closest of the Seal Islands .

Robertson Island is almost completely glaciated , the bare rock only emerges in two places, in the Oceana Nunatak in the northwest and at the southeast tip of the island, Cape Marsh , where fossils of mussels and calcareous tubeworms have been found in sediments from the Upper Cretaceous .

The island was first sighted in 1893 by Carl Anton Larsen . He named it after William Robertson (? –1897), a Scottish businessman and co-owner of Woltereck & Robertson . The Hamburg firm held a significant equity stake in the company that financed Larsen's expedition. The first mapping of the island was by Otto Nordenskjöld made of it in October 1902 as head of the Swedish Antarctic Expedition of Snow Hill Iceland coming to the dog sled reached.

Individual evidence

  1. M. Fleet: Occurence of Fossiliferous Upper Cretaceous Sediments at Cape Marsh, Robertson Island ( Memento from July 6, 2015 in the Internet Archive ) (PDF; 735 kB). In: British Antarctic Survey Bulletin 8, 1966, pp. 89-91 (English).
  2. ^ John Stewart: Antarctica - An Encyclopedia . Vol. 2, McFarland & Co., Jefferson and London 2011, ISBN 978-0-7864-3590-6 , p. 1309 (English)
  3. Reinhard A. Krause, Ursula Rack (ed.): Journal, kept on board the steamship GROENLAND, Captain Ed. Dallmann, on the journey from Hamburg to d. Whale and Seal fishing on the coasts of South Shetland Islds. Coronation Isld. Trinity Land & Palmerland, run by Rud. Küper, Hamburg , Alfred Wegener Institute, Bremerhaven 2006 (PDF file; 4.91 MB), accessed on May 9, 2013
  4. ^ William James Mills: Exploring Polar Frontiers - A Historical Encyclopedia . tape 2 . ABC-CLIO, 2003, ISBN 1-57607-422-6 , pp. 466 .