Zobrazeno 1 - 10
of 190
pro vyhledávání: '"Paul D. Bons"'
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 16, Pp n/a-n/a (2024)
Abstract Radio‐echo sounding (RES) shows large‐scale englacial stratigraphic folds are ubiquitous in Greenland's ice sheet. However, there is no consensus yet on how these folds form. Here, we use the full‐Stokes code Underworld2 to simulate ic
Externí odkaz:
https://doaj.org/article/55100ba1a1654be090a43728021fea10
Autor:
Daniela Jansen, Steven Franke, Catherine C. Bauer, Tobias Binder, Dorthe Dahl-Jensen, Jan Eichler, Olaf Eisen, Yuanbang Hu, Johanna Kerch, Maria-Gema Llorens, Heinrich Miller, Niklas Neckel, John Paden, Tamara de Riese, Till Sachau, Nicolas Stoll, Ilka Weikusat, Frank Wilhelms, Yu Zhang, Paul D. Bons
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-12 (2024)
Abstract Only a few localised ice streams drain most of the ice from the Greenland Ice Sheet. Thus, understanding ice stream behaviour and its temporal variability is crucially important to predict future sea-level change. The interior trunk of the 7
Externí odkaz:
https://doaj.org/article/b9fee28e06734e99a011c16d4228042e
Autor:
Steven Franke, Michael Wolovick, Reinhard Drews, Daniela Jansen, Kenichi Matsuoka, Paul D. Bons
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 6, Pp n/a-n/a (2024)
Abstract Understanding the material properties and physical conditions of basal ice is crucial for a comprehensive understanding of Antarctic ice‐sheet dynamics. Yet, direct data are sparse and difficult to acquire. Here, we employ ultra‐wideband
Externí odkaz:
https://doaj.org/article/18222c2ee292489b95abd256234d9e9a
Autor:
Steven Franke, Paul D. Bons, Kyra Streng, Felicitas Mundel, Tobias Binder, Ilka Weikusat, Catherine C. Bauer, John D. Paden, Nils Dörr, Veit Helm, Daniel Steinhage, Olaf Eisen, Daniela Jansen
Publikováno v:
Scientific Data, Vol 10, Iss 1, Pp 1-15 (2023)
Abstract We present a dataset of reconstructed three-dimensional (3D) englacial stratigraphic horizons in northern Greenland. The data cover four different regions representing key ice-dynamic settings in Greenland: (i) the onset of Petermann Glacier
Externí odkaz:
https://doaj.org/article/df26c081126d4368a3c784af85f8990c
Autor:
Eloi González-Esvertit, Àngels Canals, Paul D. Bons, Henrique Murta, Josep Maria Casas, Enrique Gomez-Rivas
Publikováno v:
Journal of Maps, Vol 19, Iss 1 (2023)
ABSTRACTGiant Quartz Veins (GQVs) are ubiquitous in different tectonic settings and, besides being often related to hydrothermal ore deposits, also represent large-scale fingerprints of the structural and geochemical history of the rocks in which the
Externí odkaz:
https://doaj.org/article/5e35893dd6d647bc852194e47b5e2796
Autor:
Maurine Montagnat, Mathieu Bourcier, Armelle Philip, Paul D. Bons, Catherine C. Bauer, Paul Deconinck, Pierre Hereil
Publikováno v:
Journal of Glaciology, Vol 67, Pp 1190-1204 (2021)
Hailstone structures have been studied for over a century, but so far mainly by manual optical means. This paper presents new texture and microstructure data (i.e. crystal lattice orientations, grain sizes and shapes) measured with an Automatic Ice T
Externí odkaz:
https://doaj.org/article/ca1ad65b91b64c14b6ca85f67130be2e
Publikováno v:
Geofluids, Vol 2022 (2022)
Externí odkaz:
https://doaj.org/article/83b8aedcc6854c38a841c3485a5ed07a
Autor:
Paul D. Bons, Enrique Gomez-Rivas
Publikováno v:
Geofluids, Vol 2020 (2020)
Minerals in veins and shear zones often show oxygen and hydrogen isotope ratios that are interpreted as recording interaction with meteoric water, at depths up to about 10 km. Downward fluid flow to these depths can only occur in the unlikely case of
Externí odkaz:
https://doaj.org/article/37838e22fa4043a19b7c0ec813970cb3
Publikováno v:
Geofluids, Vol 2020 (2020)
Crustal-scale fluid flow can be regarded as a bimodal transport mechanism. At low hydraulic head gradients, fluid flow through rock porosity is slow and can be described as diffusional. Structures such as hydraulic breccias and hydrothermal veins bot
Externí odkaz:
https://doaj.org/article/0d201e82f5744581a8c0a6a3cc2ed2fc
Autor:
Paul D. Bons, Daniela Jansen, Felicitas Mundel, Catherine C. Bauer, Tobias Binder, Olaf Eisen, Mark W. Jessell, Maria-Gema Llorens, Florian Steinbach, Daniel Steinhage, Ilka Weikusat
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-6 (2016)
A range of mechanisms has been proposed for large-scale folding in polar ice sheets. Here, using new three-dimensional reconstructions of such folds in the onset region of the Greenland Petermann Glacier, the authors show that these formed due to flo
Externí odkaz:
https://doaj.org/article/543df8ee4b9f403f9f799a410fbfedd5