Faculty of Bioscience and Biotechnology, c/o Faculty of Science, Tokyo Institute of Technology/Institute of Low Temperature Science, Hokkaido University/Direccion de Programas Antarticos, Instituto de la Patagonia, Universidad de Magallanes/Graduate School of Earth Environmental Science, Hokkaido University/Faculty of Bioscience and Biotechnology, c/o Faculty of Science, Tokyo Institute of Technology/Institute of Low Temperature Science, Hokkaido University
抄録(英)
A 45.97m-deep drilling operation was carried out during November/December 1999 on the accumulation area of Tyndall glacier (50°59′05″S, 73°31′12″W, 1756m a. s. l.) at the southern end of the Southern Patagonia Icefield. A portable electromechanical drilling system was developed for ice-coring on temperate glaciers which often have aquifers near the pore-close off depths. The firn-core obtained was subjected to visual stratigraphic observations and bulk-density measurements. Preliminary results suggest an extremely high accumulation rate (about 12-14m a^<-1> w. e.) at the drilling site. The drilling operation was strenuous because of the continuous strong wind and enormous snowfall which forced the members to survive for nearly three weeks in a snow cave before evacuation.
雑誌書誌ID
AA00733561
雑誌名
Memoirs of National Institute of Polar Research. Special issue
Ice core drilling on Southern Patagonia Icefield -Development of a new portable drill and the field expedition in 1999-
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KJ00000012981
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概要
