In the bowl
| In the bowl | ||
|---|---|---|
 View over the valley in a north-westerly direction |
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| location | Neuschwabenland ( Queen Maud Land , East Antarctica ) | |
| Mountains | Alexander von Humboldt Mountains in the Wohlthatmassiv | |
| Geographical location | 71 ° 34 ′ 0 ″ S , 11 ° 30 ′ 0 ″ E | |
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In the bowl is the name of a glaciated valley in the north of the Alexander von Humboldt Mountains in Neuschwabenland ( Antarctica ), which was discovered during the German Antarctic Expedition in 1938/39 . The first cartographic representation was made by Otto von Gruber for the 1942 expedition report. On Norwegian topographical maps of the 1960s, the valley is named Grautfatet ( Norwegian for groats dish ).
geography
The valley has a north-south extension of about six kilometers and ten kilometers in an east-west direction with a wide opening to the west to the Somow Glacier and a glaciated mountain pass to the northeast, which was named Am Überlauf . The ice in the valley floor is largely covered by an upper moraine . The surface of the Somow glacier west of the valley outlet sinks from 1700 to 1600 m above sea level and is thus up to 120 m higher than the ice surface in the valley, the lowest point of which is 1580 m. As a result, the valley is currently without any drainage and the upper moraine is pushed against the mountains in the east by the influx of ice from the Somow glacier, which leads to a garland-like shape of this moraine.
Scientific work
During the GeoMaud expedition in 1995/96, the mountains surrounding the valley were geologically mapped and heat flow measurements were carried out on the very slowly flowing ice of the valley floor , which demonstrated an unusually high heat flow in the earth's crust below . By ground radar measurements and the thickness of the ice and the structure of the bedrock was studied. The bedrock of the valley has two V-shaped notch valleys , one from the southern edge at Lose Platte , which runs to the northwest and one that runs from the eastern edge of the mountain range to Western. Both valleys unite at the western exit of In der Schüssel, where the valley glacier is over 1000 meters thick.
See also
Web links
- Australian Antarctic Data Center datasheet , accessed September 1, 2011.
- Work card of the GeoMaud expedition 1995/96 (PDF; 447 kB), accessed on May 23, 2017.
- Inclined aerial photo from 1939, view towards SSO (PDF; 1.1 MB), accessed on May 24, 2017.
Individual evidence
- ^ Topographic map Dronning Maud Land 1: 250,000, Blad L5 Humboldtfjella , Norsk Polarinstitutt , Oslo, 1968.
- ↑ BGR page on the work of GeoMaud ( Memento of the original from October 17, 2013 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. , accessed September 2, 2011.
- ^ Georg Delisle: Sub-Ice Topography of Selected Areas in central Dronning Maud Land, East Antarctica (Ground-Based RES Survey) . Geological Yearbook B97, pp. 197-210, Hannover 2005. ISBN 978-3-510-95946-4 .
