Aurdalen Valley
Encyclopedia
Aurdalen Valley is a small moraine
-covered valley
between Grakammen Ridge
and Aurdalsegga Ridge
, in the Petermann Ranges
of the Wohlthat Mountains
. It was discovered and plotted from air photos by the Third German Antarctic Expedition, 1938–39, re-plotted from air photos and from surveys by the Sixth Norwegian Antarctic Expedition
, 1956–60, and named "Aurdalen" ("the gravel
valley").
Moraine
A moraine is any glacially formed accumulation of unconsolidated glacial debris which can occur in currently glaciated and formerly glaciated regions, such as those areas acted upon by a past glacial maximum. This debris may have been plucked off a valley floor as a glacier advanced or it may have...
-covered valley
Valley
In geology, a valley or dale is a depression with predominant extent in one direction. A very deep river valley may be called a canyon or gorge.The terms U-shaped and V-shaped are descriptive terms of geography to characterize the form of valleys...
between Grakammen Ridge
Grakammen Ridge
Grakammen Ridge is a mountainous ridge that includes Tambovskaya Peak and Mount Solov'yev, rising between Grahorna Peaks and Aurdalen Valley in Westliche Petermann Range, Wohlthat Mountains. Discovered and plotted from air photos by German Antarctic Expedition, 1938-39...
and Aurdalsegga Ridge
Aurdalsegga Ridge
Aurdalsegga Ridge is an irregular ridge long surmounted by Mount Nikolayev, rising immediately southeast of Aurdalen Valley in the Südliche Petermann Range of the Wohlthat Mountains in Antarctica...
, in the Petermann Ranges
Petermann Ranges
The Petermann Ranges are a number of associated mountain ranges including the Ostliche Petermann, Mittlere Petermann, Westliche Petermann, Südliche Petermann, and Pieck Ranges, located just east of the Humboldt Mountains in the central Wohlthat Mountains of Queen Maud Land. They were discovered and...
of the Wohlthat Mountains
Wohlthat Mountains
Wohlthat Mountains is a large group of associated mountain features consisting of the Humboldt Mountains, Petermann Ranges, and the Gruber Mountains, located immediately east of the Orvin Mountains in Fimbulheimen in the central Queen Maud Land. Discovered by the Third German Antarctic Expedition ,...
. It was discovered and plotted from air photos by the Third German Antarctic Expedition, 1938–39, re-plotted from air photos and from surveys by the Sixth Norwegian Antarctic Expedition
Sixth Norwegian Antarctic Expedition
The sixth Norwegian Antarctic Expedition was a scientific expedition to Queen Maud Land, intended as part of Norway's participation in the International Geophysical Year, 1957-58. The crew set sail from Oslo on board two whaling ships, the Polarsirkel and Polarbjørn, on November 10, 1956. They...
, 1956–60, and named "Aurdalen" ("the gravel
Gravel
Gravel is composed of unconsolidated rock fragments that have a general particle size range and include size classes from granule- to boulder-sized fragments. Gravel can be sub-categorized into granule and cobble...
valley").