History of drilling through ice sheets and glaciers
Scientific ice drilling began in 1840, when Louis Agassiz attempted to drill through the Unteraargletscher in the Alps. Rotary drills were first used to drill in ice in the 1890s, and thermal drilling, with a heated drillhead, began to be used in the 1940s. Ice coring began in the 1950s, with the International Geophysical Year at the end of the decade bringing increased ice drilling activity. In 1966, the Greenland ice sheet was penetrated for the first time with a 1,388 m hole reaching bedrock, using a combination of thermal and electromechanical drilling. Major projects over the following decades brought cores from deep holes in the Greenland and Antarctic ice sheets.
Hand drilling, using ice augers to retrieve small cores, or small drills using steam or hot water to install ablation stakes, is also common.
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rotary drilling, a method often used in mineral exploration for rock drilling. In the 1940s, thermal drills began to be used; these drills melt the ice by...
icedrilling began in 1840, when Louis Agassiz attempted to drill through the Unteraargletscher in the Alps. Rotary drills were first used to drill in...
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Pole of Cold, with the lowest reliably measured natural temperature on Earth of −89.2 °C (−128.6 °F; 184.0 K). Research includes ice core drilling and...
The Deep Sea Drilling Project (DSDP) was an ocean drilling project operated from 1968 to 1983. The program was a success, as evidenced by the data and...
m of the ice cap. The shallow drill can take cores up to 50 m long and 74mm in diameter from the top 350 m ofice, and it does not require drilling fluid...
of a more sophisticated drilling rig, drilling to bedrock at Dye 3 began in the summer[when?] of 1979 using a new Danish electro-mechanical icedrill...
The drilling site of the North Greenland Ice Core Project (NGRIP or NorthGRIP) is near the center of Greenland (75.1 N, 42.32 W, 2917 m, ice thickness...
(CNR/Ca’Foscari Univ. of Venice) from Italy to conduct drilling expeditions worldwide and safeguard the data present in the ice - the memory of the ice - in an sanctuary...
hammer drill, also known as a percussion drill or impact drill, is a power tool used chiefly for drilling in hard materials. It is a type of rotary drill with...
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polar ice core drillings... and established the fundamental drilling technology for retrieving deep ice cores for climatologic archives." Polar ice caps...
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Moreover, the practice ofdrilling could present a potential threat to the region as a whole. When companies are exploring and drilling they are extracting...
out on thinner ice. The new mission: to haul the heavy metal of natural gas drilling rigs up a frozen river and across ice-choked seas. Ice road truckers...
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sampled "Say My Name" by Destiny's Child. Ice Spice and Kenzo B emerged from the Bronx drill scene. Drill music UK drill Pierre, Alphonse (30 January 2020)....
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would clarify its history.Only twelve outcrops, with a total area of less than 0.5 square kilometres (0.19 sq mi), emerge from the ice. Based on these outcrops...
freeboard of the ice as an indicator, which can be done by drilling a hole in it and monitoring the distance between the water in the hole and the ice surface...
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