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Kärkevagge
Kärkevagge (Northern Sami: ''Geargevággi'', "Stone Valley") is a short (4 km long) valley in Kiruna Municipality, Sweden. It is easily accessed by a good path from the E75 Kiruna-Narvik highway. Rissajaure, the clearest lake in Sweden, is located at the head of the valley.〔 Karkevagge is noted for the Giant Boulder Deposit (GBD) which fills it with huge jumbled blocks, some the size of houses. One of Sweden's leading geoscientists, Anders Rapp, a world pioneer of quantitative geomorphology, studied the valley for 10 years. He suggested that the parallel rows of blocks had descended in waves from the valleyside cliffs.〔Rapp, A. 1960. Recent development of mountain slopes in Karkevagge and surroundings, northern Scandinavia. Geografiska Annaler 42, 65-200〕 He estimated the volume of the GBD at 50 million cubic metres. However a large angular cavity beside Rissajaure (top right in picture) has a volume of 42 million cubic metres. The GBD probably descended from it as a rock avalanche and spread down the valley on a glacier, giving it a moraine-like form and visual unity as seen from the air.〔Jarman, D. 2002. Rock slope failure and landscape evolution in the Caledonian mountains, as exemplified in the Abisko area, northern Sweden. Geografiska Annaler 84A, 213-224〕
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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