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https://doi.org/10.5194/egusphere-2024-3081
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/egusphere-2024-3081
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
10 Dec 2024
| 10 Dec 2024
Status: this preprint is open for discussion.
Brief Communication: The Danish Replicate Drilling System – Results from the First Field Test
Abstract. We report on the successful test of a new replicate drilling system for ice cores. The test was done in drill fluid, at 140 m depth of the EastGRIP borehole in central Greenland. By determining the borehole orientation, broaching into the side of the borehole wall, we can guide the milling tool into the downhill side of the borehole. Thus, we produce a ledge on which we rest the drill with all its weight. Gravity would now guide the ice core drill into the downhill side of the hole, gradually producing full ice cores.
How to cite. Westhoff, J., Boeckmann, G. V., Rathmann, N. M., and Hansen, S. B.: Brief Communication: The Danish Replicate Drilling System – Results from the First Field Test, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2024-3081, 2024.
Publisher's note: Copernicus Publications remains neutral with regard to jurisdictional claims made in the text, published maps, institutional affiliations, or any other geographical representation in this preprint. The responsibility to include appropriate place names lies with the authors.
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Julien Westhoff
Niels Bohr Institute, University of Copenhagen, 2200 Copenhagen, Denmark
Grant Vernon Boeckmann
CORRESPONDING AUTHOR
Niels Bohr Institute, University of Copenhagen, 2200 Copenhagen, Denmark
Nicholas Mossor Rathmann
Niels Bohr Institute, University of Copenhagen, 2200 Copenhagen, Denmark
Steffen Bo Hansen
Niels Bohr Institute, University of Copenhagen, 2200 Copenhagen, Denmark
Short summary
We report on the successful test of a new replicate drilling system for ice cores. This system allows us to deviate the ice core drill from the parent, the original, borehole, and drill into the side of the wall. Thus, we can produce a second ice core from any desired depth, increasing the amount of sample available for scientific purposes. In the manuscript, we present the results from the first field tests and the challenges we encountered.
We report on the successful test of a new replicate drilling system for ice cores. This system...