Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Peter O. Koons"'
Autor:
Seth Campbell, Kate Hruby, Christopher Gerbi, Robert L. Hawley, Carlos Martín, Peter O. Koons
Publikováno v:
Journal of Glaciology. 66:755-765
Streaming ice accounts for a major fraction of global ice flux, yet we cannot yet fully explain the dominant controls on its kinematics. In this contribution, we use an anisotropic full-Stokes thermomechanical flow solver to characterize how mechanic
Autor:
L. M. Kaluzienski, Steven A. Arcone, Gordon S. Hamilton, Ellyn M. Enderlin, Peter O. Koons, Zoe Courville
Publikováno v:
Journal of Glaciology. 65:989-999
While large-scale observations of intensified fracture and rifting can be observed through remote-sensing observations, understanding crevasse initiation may best be achieved with small-scale observations in which crevasses can be directly observed.
Autor:
Natalia A. Ruppert, Kevin M. Ward, J. Elliott, Mark A. Bauer, Gary L. Pavlis, Terry L. Pavlis, Peter O. Koons, Lindsay L. Worthington
Publikováno v:
Geosphere. 15:382-406
We merge structural results from the ST. Elias Erosion/tectonics Project (STEEP), other studies, and seismicity data to build a comprehensive, three-dimensional model of the lithosphere of the subduction corner in southern Alaska. The model is define
Publikováno v:
New Zealand Journal of Geology and Geophysics. 61:367-375
Erosion rates in the hanging wall of the Alpine Fault are high, keeping pace with rock uplift over time frames of 104–106 years. On shorter time frames, prediction of temporal and spatial distribution of erosion is challenging and must account for
Publikováno v:
New Zealand Journal of Geology and Geophysics. 61:1-8
It is notoriously difficult to characterise the strength and stress states of major plate boundaries. By taking advantage of the well-constrained stress contribution of topography adjacent to a segmented section of the Alpine Fault, New Zealand, we h
Publikováno v:
Behavioral Ecology. 29:160-168
When preferred outcomes to a decision are unavailable, animals must decide when to settle. Migrating birds that are too picky about which winds to use may never reach their goal, but birds that are not picky enough may be blown off-course. By modelin
Publikováno v:
Geological Society of America Abstracts with Programs.
Publikováno v:
Geology. 44:583-586
We provide model evidence for a previously unexplored positive feedback between tectonic strain and fluvial erosion by considering rock erodibility as a function of shear damage. Plastic shear strain permanently damages the upper crust within planar
Publikováno v:
Computers & Geosciences. 90:102-116
We present the every-direction variogram analysis (EVA) method for quantifying orientation and scale dependence of topographic anisotropy to aid in differentiation of the fluvial and tectonic contributions to surface evolution. Using multi-directiona
Autor:
A. Barker, Natalia A. Ruppert, Rachel M. Headley, J. Elliott, John I. Garver, Harm J. A. Van Avendonk, Eva Enkelmann, Sean P. S. Gulick, Peter O. Koons, Bernard Hallet, Gary L. Pavlis, Kenneth D. Ridgway, Terry L. Pavlis
Publikováno v:
Geophysical Research Letters. 42:5838-5846
Investigations of tectonic and surface processes have shown a clear relationship between climate-influenced erosion and long-term exhumation of rocks. Numerical models suggest that most orogens are in a transient state, but observational evidence of