Zobrazeno 1 - 10
of 25
pro vyhledávání: '"P. D. Bons"'
Autor:
Y. Yu, A. Griera, E. Gomez‐Rivas, P. D. Bons, D. García‐Castellanos, B. Hao, R. A. Lebensohn, M.‐G. Llorens
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 25, Iss 9, Pp n/a-n/a (2024)
Abstract Upper mantle deformation is mainly controlled by the mechanical behavior of olivine. Crystallographic preferred orientations (CPOs) develop in olivine due to crystal‐plastic deformation during mantle flow, where the a‐axes of olivine pol
Externí odkaz:
https://doaj.org/article/1742ce8d1562410e8b05f0c587d42b06
Publikováno v:
Geoscientific Model Development, Vol 15, Pp 8749-8764 (2022)
Numerical models have become an indispensable tool for understanding and predicting the flow of ice sheets and glaciers. Here we present the full-Stokes software package Underworld to the glaciological community. The code is already well established
Externí odkaz:
https://doaj.org/article/d810a3ad1966491ea0be76135ca6ab6a
Autor:
M.-G. Llorens, A. Griera, P. D. Bons, I. Weikusat, D. J. Prior, E. Gomez-Rivas, T. de Riese, I. Jimenez-Munt, D. García-Castellanos, R. A. Lebensohn
Publikováno v:
The Cryosphere, Vol 16, Pp 2009-2024 (2022)
Creep due to ice flow is generally thought to be the main cause for the formation of crystallographic preferred orientations (CPOs) in polycrystalline anisotropic ice. However, linking the development of CPOs to the ice flow history requires a proper
Externí odkaz:
https://doaj.org/article/fad3070250154be4bf2eff3bb4cd3dfd
Autor:
P. D. Bons, T. de Riese, S. Franke, M.-G. Llorens, T. Sachau, N. Stoll, I. Weikusat, J. Westhoff, Y. Zhang
Publikováno v:
The Cryosphere, Vol 15, Pp 2251-2254 (2021)
Smith-Johnsen et al. (The Cryosphere, 14, 841–854, https://doi.org/10.5194/tc-14-841-2020, 2020) model the effect of a potential hotspot on the Northeast Greenland Ice Stream (NEGIS). They argue that a heat flux of at least 970 mW m−2 is required
Externí odkaz:
https://doaj.org/article/664272fc31804bd5ad763e2896e0435a
Autor:
C. Qi, D. J. Prior, L. Craw, S. Fan, M.-G. Llorens, A. Griera, M. Negrini, P. D. Bons, D. L. Goldsby
Publikováno v:
The Cryosphere, Vol 13, Pp 351-371 (2019)
Synthetic polycrystalline ice was sheared at temperatures of −5, −20 and −30 ∘C, to different shear strains, up to γ=2.6, equivalent to a maximum stretch of 2.94 (final line length is 2.94 times the original length). Cryo-electron backscat
Externí odkaz:
https://doaj.org/article/cd6d671d7cf64738ab452b17d660941e
Publikováno v:
The Cryosphere, Vol 10, Iss 6, Pp 3071-3089 (2016)
We performed numerical simulations on the microdynamics of ice with air inclusions as a second phase. Our aim was to investigate the rheological effects of air inclusions and explain the onset of dynamic recrystallization in the permeable firn. The s
Externí odkaz:
https://doaj.org/article/f3521a756f0e4a859475bb3894a55945
Autor:
D. Jansen, M.-G. Llorens, J. Westhoff, F. Steinbach, S. Kipfstuhl, P. D. Bons, A. Griera, I. Weikusat
Publikováno v:
The Cryosphere, Vol 10, Iss 1, Pp 359-370 (2016)
Disturbances on the centimetre scale in the stratigraphy of the North Greenland Eemian Ice Drilling (NEEM) ice core (North Greenland) can be mapped by an optical line scanner as long as the ice has visual layering, such as, for example, cloudy bands.
Externí odkaz:
https://doaj.org/article/47becce0d5074ffba804706326460d24
Publikováno v:
Solid Earth, Vol 6, Iss 2, Pp 457-473 (2015)
Conflicting interpretations of the > 500 km long, east–west-trending Qiangtang metamorphic belt have led to very different and contradicting models for the Permo–Triassic tectonic evolution of central Tibet. We define two metamorphic events, one
Externí odkaz:
https://doaj.org/article/4e6e674f9a114284a3c7ad895ca490d8
Publikováno v:
Journal of microscopy. 213(3)
The combination of subgrain- and grain-scale microstructural data collected during in-situ heating experiments and numerical simulations of equivalent microstructural development offers an innovative and powerful tool in the advancement of the unders
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::033b312190d7f313cc57887d588677be
https://pubmed.ncbi.nlm.nih.gov/15009695
https://pubmed.ncbi.nlm.nih.gov/15009695