Results 31 to 40 of about 663,567 (291)

Hawaii Scientific Drilling Project 1993 [PDF]

, 1994
Content: Project Summary, History of Hawaii Project, Permit History, Continental Scientific Drilling Office's Role, Setup and Coring of Kahi Puka Site, Downhole Problems, Cures for Problems, Conclusions, Appendices: Correspondence for Increase in Depth ...

core   +3 more sources

Viability of chemical and water isotope ratio measurements of RAID ice chippings from Antarctica

Journal of Glaciology, 2023
The British Antarctic Survey's (BAS) Rapid Access Isotope Drill (RAID), designed for rapid drilling to survey prospective ice core sites, has been deployed at multiple Antarctic locations over 6 years.
Isobel F. Rowell, Robert Mulvaney, Julius Rix, Dieter R. Tetzner, Eric W. Wolff   +4 more
doaj   +1 more source

Experimental Investigation on the Feasibility and Optimal Frequency of Ultrasonic Assisted Ice Drilling Method [PDF]

, 2023
Exploitation of polar resources and scientific research require efficient ice drilling technology. Thermal drilling is a common method for polar ice drilling, and is similar to the principle of ultrasonic assisted drilling; both are drilled by melting ...
Zhao, DaJun, Fang, Xin, Wang, Chen
core   +2 more sources

Exploring ice core drilling chips from a cold Alpine glacier for cosmogenic radionuclide (10Be) analysis

Results in Physics, 2016
Ice cores offer unique multi-proxy paleoclimate records, but provide only very limited sample material, which has to be carefully distributed for various proxy analyses.
Lars Zipf, Silke Merchel, Pascal Bohleber, Georg Rugel, Andreas Scharf   +4 more
doaj   +1 more source

Experimental research on the thermal method of drilling by melting the well in ice mass with simultaneous controlled expansion of its diameter

Записки Горного института, 2022
During the seasonal work of the 64th Russian Antarctic Expedition in 2018-2019 at the “Vostok” drilling facility named after B.B.Kudryashov (“Vostok” station, Antarctic) specialists of Saint Petersburg Mining University conducted experimental ...
Danil V. Serbin, Andrey N. Dmitriev
doaj   +1 more source

Study on the Low-Temperature Rheology of Polar Drilling Fluid and Its Regulation Method

Gels, 2023
Drilling fluid is the blood of drilling engineering. In the polar drilling process, the ultra-low temperature environment puts high demands on the rheological performance of drilling fluids.
Ning Huang, Kaihe Lv, Jinsheng Sun, Jingping Liu, Jintang Wang, Zonglun Wang   +5 more
doaj   +1 more source

Optimization of hot-water ice-coring drills

Annals of Glaciology, 2021
Hot-water ice-coring drills are often used to recover ice core samples from desirable depths in conjunction with full-scale hot-water drilling systems. However, the recovered cores exhibit varying qualities.
An Liu, Rusheng Wang, Yang Yang, Liang Wang, Xiao Li, Yazhou Li, Pavel Talalay   +6 more
doaj   +1 more source

Research into mechanical modeling based on characteristics of the fracture mechanics of ice cutting for scientific drilling in polar regions [PDF]

The Cryosphere
Scientific drilling in polar regions plays a crucial role in obtaining ice cores and using them to understand climate change and to study the dynamics of polar ice sheets and their impact on global environmental changes (sea level, ocean current cycle ...
X. Lv, X. Lv, Z. Cui, Z. Cui, T. Wang, Y. Wen, A. Liu, R. Wang, R. Wang   +8 more
doaj   +1 more source

Proceedings of the Integrated Ocean Drilling Program 302: Arctic Coring Expedition (ACEX)

, 2006
<p>The first scientific drilling expedition to the central Arctic Ocean, Integrated Ocean Drilling Program Expedition 302, Arctic Coring Expedition (ACEX), recovered sediment cores to 428 m below seafloor (mbsf) in water depths of ~1300 m, 250 km ...
Onodera, Jonaotaro, Rio, Domenico, Yamamoto, Masanobu, Jakobsson, Martin, McInroy, David, Koç, Nalân, Suto, Itsuki, O'Regan, Matthew, Clemens, Steven C., Gattacceca, Jérôme, Kaminski, Michael A., Pälike, Heiko, Cronin, Thomas, Suzuki, Noritoshi, Moore, Jr., Theodore C., King, John, Stein, Ruediger, Sakamoto, Tatsuhiko, Eynaud, Frédérique, Rea, Brice, Brinkhuis, Henk, Martinez, Nahysa E., St. John, Kristen, Smith, David C., Watanabe, Mahito, Moran, Kate, Backman, Jan, Jordan, Richard W., Matthiessen, Jens, Dickens, Gerald R., Takahashi, Kozo   +30 more
core   +1 more source

Drilling into debris-rich basal ice at the bottom of the NEEM (Greenland) borehole [PDF]

, 2014
After the NEEM (Greenland) deep ice-core drilling was declared terminated with respect to developing stratigraphic climate reconstructions, efforts were turned toward collecting basal ice-sheet debris and, if possible, drilling into the bedrock itself ...
Popp, Trevor J., Sheldon, Simon G., Schwander, Jakob, Johnson, Jay A., Trevor J. Popp, Jay A. Johnson, Hansen, Steffen B., Steffen B. Hansen, Simon G. Sheldon, Jakob Schwander   +9 more
core   +2 more sources