File:Drift mine diagram.PNG

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Summary[edit]

Description
Deutsch: Schnittskizze eines Goldbergwerks im Yukon territory. Zugang durch den Haspelschacht shaft, der den Permafrostboden frozen gravel durchteuft. Von der Sohle des Schachtes wird eine Strecke (oder Weitung) drift in der goldführenden Schicht gold-bearing sediment aufgefahren und dabei das Gold abgebaut. Die Tundra ist im arktischen Sommer moosbedeckt (moss), zwischen der Tagesoberfläche und dem Permafrostboden befindet sich eine Schicht Moorerde (muck).
English: Diagram of a drift mine in frozen ground, as found in Alaska or Yukon in the early 20th century. The notation TAR is presumably the artist's initials (Thomas Arthur Rickard)
Date copyright 1909
Source Through the Yukon and Alaska [1] Mining and Scientific Press, San Francisco, 1909 p211.
Author T.A. Rickard
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current14:24, 6 December 2010Thumbnail for version as of 14:24, 6 December 20101,645 × 1,159 (38 KB)Dankarl (talk | contribs){{Information |Description={{en|1=Diagram of a drift mine in frozen ground, as found in Alaska or Yukon in the early 20th century. The notation TAR is presumably the artist's initials (Thomas Arthur Rickard)}} |Source=''Through the Yukon and Alaska'' [htt
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