Search results
Results from the WOW.Com Content Network
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.
Ice drilling allows scientists studying glaciers and ice sheets to gain access to what is beneath the ice, to take measurements along the interior of the ice, and to retrieve samples. Instruments can be placed in the drilled holes to record temperature, pressure, speed, direction of movement, and for other scientific research, such as neutrino ...
The core, nearly as long as 25 soccer fields end to end or six and a half times taller than the Empire State Building to the very tip of its antenna, is a “time machine” that captures “an ...
The team, with members from 12 European scientific institutions, drilled and retrieved a 9,186-foot-long (2,800-meter) ice core from the Antarctic ice sheet. The sample extended so deep that ...
In 1991, ice cores 783 to 2482 meters long were drilled, and an ice core was drilled to bedrock in 1992. [13] The ice core was first taken to the University of Copenhagen in Denmark, where it was stored in a cold room at -26 °C. [13] Five sections of ice core with a length of about 300 to 400 mm were shipped to Japan. [13]
The National Science Foundation Ice Core Facility (NSF-ICF), known as the National Ice Core Laboratory (NICL) before 2018, is the primary repository for ice cores collected by the United States. The facility is located at the Denver Federal Center in Lakewood, Colorado , and is managed by the United States Geological Survey (USGS). [ 1 ]
The core, which Putkonen estimates is between 4 and 5 million years old, was discovered during a 2018 expedition in Antarctica. He said the 10 meter-long core contains invaluable information for ...
Rock core samples, the product of a diamond rig. A pied butcherbird perches nearby. A core sample is a cylindrical section of (usually) a naturally-occurring substance. Most core samples are obtained by drilling with special drills into the substance, such as sediment or rock, with a hollow steel tube, called a core drill. The hole made for the ...