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Charles Corfield, Science Manager for the 1998 American Everest Expedition, said the scientific work the climbers hope to accomplish on or near the summit of Mount Everest is aimed at learning if the mountain is moving, and where the actual bedrock ends and the snow begins. To determine if tectonic motion is pushing the mountain up, down, sideways or not at all, the climbers will attempt to fix a stainless steel plate to a large rock just below the summit. The plate holds a threaded post on which a GPS receiver and antenna can be mounted. When the Trimble 4800 GPS receiver is switched on, it can establish the location of that rock within a few millimeters. The challenge for the climbers is the time consuming work of drilling holes in solid rock in the extreme conditions near the summit.
On the summit itself, the climbers will attempt to locate where the snow
ends and the rock begins by using coring equipment to auger down through
the snow layers. It is hoped they can core deeply enough to strike
bedrock, but they concede that the rock may lie too deeply buried to be
found in this primitive manner. The drilling and coring will expose the
climbers to dangerous conditions of the summit for an extended period of
time, increasing the difficulty and danger of their summit day.
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