Zobrazeno 1 - 10
of 36
pro vyhledávání: '"D J, Prior"'
Autor:
S. Fan, D. J. Prior, B. Pooley, H. Bowman, L. Davidson, D. Wallis, S. Piazolo, C. Qi, D. L. Goldsby, T. F. Hager
Publikováno v:
The Cryosphere, Vol 17, Pp 3443-3459 (2023)
Grain growth can modify the microstructure of natural ice, including the grain size and crystallographic preferred orientation (CPO). To better understand grain-growth processes and kinetics, we compared microstructural data from synthetic and natura
Externí odkaz:
https://doaj.org/article/3199e4f28a454cb9bfa0f9d09ffd7c07
Autor:
F. Lutz, D. J. Prior, H. Still, M. H. Bowman, B. Boucinhas, L. Craw, S. Fan, D. Kim, R. Mulvaney, R. E. Thomas, C. L. Hulbe
Publikováno v:
The Cryosphere, Vol 16, Pp 3313-3329 (2022)
Crystallographic preferred orientations (CPOs) are particularly important in controlling the mechanical properties of glacial shear margins. Logistical and safety considerations often make direct sampling of shear margins difficult, and geophysical m
Externí odkaz:
https://doaj.org/article/cfd0ff3a25934c77a98d217bdba9f415
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:
M. E. Monz, P. J. Hudleston, D. J. Prior, Z. Michels, S. Fan, M. Negrini, P. J. Langhorne, C. Qi
Publikováno v:
The Cryosphere, Vol 15, Pp 303-324 (2021)
Microstructures provide key insights into understanding the mechanical behavior of ice. Crystallographic preferred orientation (CPO) develops during plastic deformation as ice deforms dominantly by dislocation glide on the basal plane, modified and o
Externí odkaz:
https://doaj.org/article/0ac1ecc985bb4a21a9aab492ca5c716f
Publikováno v:
The Cryosphere, Vol 14, Pp 3875-3905 (2020)
In order to better understand ice deformation mechanisms, we document the microstructural evolution of ice with increasing strain. We include data from experiments at relatively low temperatures (−20 and −30 ∘C), where the microstructural evo
Externí odkaz:
https://doaj.org/article/3cb50feea3b148cf9b620080dbd9311a
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:
Solid Earth, Vol 9, Pp 1123-1139 (2018)
We constrain the thermal state of the central Alpine Fault using approximately 750 Ti-in-quartz secondary ion mass spectrometer (SIMS) analyses from a suite of variably deformed mylonites. Ti-in-quartz concentrations span more than 1 order of magni
Externí odkaz:
https://doaj.org/article/6f542525e2f64b239072b843622deead
Publikováno v:
The Cryosphere, Vol 10, Iss 6, Pp 2821-2829 (2016)
The elastic and anelastic properties of ice are of interest in the study of the dynamics of sea ice, glaciers, and ice sheets. Resonant ultrasound spectroscopy allows quantitative estimates of these properties and aids calibration of active and passi
Externí odkaz:
https://doaj.org/article/f72a3ee88b264b98b8a4db2a0abec5e4
Fractures play an important role as fluid flow pathways in geothermal resources hosted in indurated greywacke basement of the Taupo Volcanic Zone, New Zealand, including the Kawerau Geothermal Field. Over time, the permeability of such geothermal res
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afa2bb50632a687ceeb8bed4e1a82090
http://hdl.handle.net/10379/6726
http://hdl.handle.net/10379/6726
Autor:
C. D. Menzies, Richard J. Norris, John Townend, Timothy A. Little, Elisabetta Mariani, Mike Hasting, Rupert Sutherland, Virginia Toy, Hannah Scott, Daniel R. Faulkner, Achim J Kopf, Carolyn Boulton, D. J. Prior, Zoe Reid Lindroos, G. P. De Pascale, Robert Langridge, Jennifer Eccles, Betina Fleming, Simon C. Cox, Brett M. Carpenter
Publikováno v:
Geology. 40:1143-1146
Rock damage during earthquake slip affects fluid migration within the fault core and the surrounding damage zone, and consequently coseismic and postseismic strength evolution. Results from the first two boreholes (Deep Fault Drilling Project DFDP-1)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ae28bd92d0779b2f76d50a11dea5829
https://doi.org/10.1130/g33614.1
https://doi.org/10.1130/g33614.1