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Commercially available ice augers for winter fishing, powered by petrol, propane, or battery power, are available for hole diameters from 4.5 in to 10 in. For holes deeper than 2 m a tripod can be used to winch the auger from the hole. A folding brace handle with an offset design is common; this allows both hands to contribute to the torque. [70]
Another auger drill was built at the University of Bern shortly after the Rufli drill was tested; the UB-II drill was heavier than the Rufli drill, with a total weight of 350 kg. [note 5] It was used in Greenland in 1975 to drill four cores, at Dye 3 (where the deepest hole, at 94 m, was drilled), South Dome, and on the Hans Tausen Ice Cap. Two ...
Ice core sample taken from drill. An ice core is a core sample that is typically removed from an ice sheet or a high mountain glacier.Since the ice forms from the incremental buildup of annual layers of snow, lower layers are older than upper ones, and an ice core contains ice formed over a range of years.
A screw-propelled vehicle A screw-propelled vehicle is a land or amphibious vehicle designed to cope with difficult terrain, such as snow, ice, mud, and swamp. Such vehicles are distinguished by being moved by the rotation of one or more auger-like cylinders fitted with a helical flange that engages with the medium through or over which the vehicle is moving. They have been called Archimedes ...
A drill site, "Little Dome C", was chosen in 2022 and drilling operations will take place in the following years. [4] At the start of 2025 it was announced that after they drilled to a depth of 2800 m, they found in the uppermost 2480 m the oldest possibly unbroken ice core record to date. It spans to 1.2 million years ago.
A post-hole auger. An earth auger, earth drill, or post-hole auger is a drilling tool used for making holes in the ground. [1] It typically consists of a rotating vertical metal rod or pipe with one or more blades attached at the lower end, that cut or scrape the soil.