Results 11 to 20 of about 663,567 (291)

New Seismic Methods to Support Sea-Ice Platform Drilling [PDF]

open access: yesScientific Drilling, 2009
The ANtarctic geological DRILLing Program (ANDRILL)is currently a consortium of five nations (Germany, Italy, New Zealand, the United Kingdom, a and the United States of America).
Stephen F. Pekar   +4 more
doaj   +4 more sources

Drilling comparison in ‘warm ice’ and drill design comparison [PDF]

open access: yesAnnals of Glaciology, 2007
AbstractFor the deep ice-core drilling community, the 2005/06 Antarctic season was an exciting and fruitful one. In three different Antarctic locations, Dome Fuji, EPICA DML and Vostok, deep drillings approached bedrock (the ice–water interface in the case of Vostok), emulating what had previously been achieved at NorthGRIP, Greenland, (summer 2003 and
L. Augustin   +6 more
core   +6 more sources

Ice drilling on Skytrain Ice Rise and Sherman Island, Antarctica [PDF]

open access: yesAnnals of Glaciology, 2021
To understand the long-term climate and glaciological evolution of the ice sheet in the region bordering the Weddell Sea, the British Antarctic Survey has undertaken a series of successful ice core projects drilling to bedrock on Berkner Island, James ...
Robert Mulvaney   +8 more
doaj   +3 more sources

Experimental research of ice cuttings transport by air while drilling of the snow-firn layer

open access: yesЛëд и снег, 2023
The snow-firn layer of the glaciers of Antarctica and Greenland contains data on the composition of the atmosphere in the past, volcanic eruptions, forest fires, anthropogenic pollution, and many other unique information.
S. A. Ignatiev   +4 more
doaj   +2 more sources

A new large-diameter ice-core drill: the Blue Ice Drill [PDF]

open access: yesAnnals of Glaciology, 2014
AbstractThe Blue Ice Drill (BID) is a large-diameter agile drill system designed by the Ice Drilling Design and Operations group of the University of Wisconsin–Madison to quickly core-clean 241 mm diameter ice samples from near-surface sites. It consists of a down-hole motor/gear reducer rotating a coring cutter and core barrel inside an outer barrel ...
Tanner W. Kuhl   +5 more
openaire   +1 more source

Theoretical and numerical simulation research about annular nozzle parameters influence on heat transfer in hot-water ice-coring drilling

open access: yesCase Studies in Thermal Engineering, 2023
Ice cores from polar zones could determine ice dating and biodiversity. Ice cores retrieved in hot-water ice-coring drilling partly melted owing to moderate drilling speed of annular drill head with many nozzles, which was largely depended on the heat ...
An Liu   +5 more
doaj   +1 more source

Drill-site selection for cosmogenic-nuclide exposure dating of the bed of the Greenland Ice Sheet [PDF]

open access: yesThe Cryosphere, 2022
Direct observations of the size of the Greenland Ice Sheet during Quaternary interglaciations are sparse yet valuable for testing numerical models of ice-sheet history and sea level contribution. Recent measurements of cosmogenic nuclides in bedrock from
J. P. Briner   +10 more
doaj   +1 more source

Research progress and development direction of low-temperature drilling fluid for Antarctic region

open access: yesPetroleum Exploration and Development, 2022
By combing the characteristics of drilling in Antarctic region, performance requirements on drilling fluid for Antarctic low temperature conditions, and research progress of low temperature drilling fluid, current problems of the drilling fluid have been
Jinsheng SUN   +7 more
doaj   +1 more source

A Review of Ice Core Drilling in Cave Environment – Challenges, Achievements and Future Directions

open access: yesFrontiers in Earth Science, 2022
Worldwide, more than 141 m of ice cores has been extracted from 20 cave ice deposits, with the drilling projects focusing mainly in Central European caves.
Zoltan Kern   +3 more
doaj   +1 more source

Expedition 302 summary [PDF]

open access: yes, 2006
The first scientific drilling expedition to the central Arctic Ocean was completed in September 2004. Integrated Ocean Drilling Program Expedition 302, Arctic Coring Expedition (ACEX), recovered sediment cores to 428 meters below seafloor (mbsf) in water
Moran, Kathryn   +33 more
core   +2 more sources

Home - About - Disclaimer - Privacy