How the energy budget scales from the laboratory to the crust in accretionary wedges
How the energy budget scales from the laboratory to the crust in accretionary wedges
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能量收支如何从实验室扩展到增生楔中的地壳
DOI:
10.1016/j.epsl.2020.116276
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发表时间:
2020
影响因子:
5.3
通讯作者:
Renard, François
中科院分区:
文献类型:
--
作者:
McBeck, Jessica;Cooke, Michele;Renard, François
We investigate the scaling properties of the mechanical energy budget in accretionary prisms across five orders of magnitude, from the laboratory centimeter-scale to crustal kilometer-scale. We first develop numerical models that match the length scale, fault and material properties, surface topography, and fault geometries observed in scaled dry sand accretionary experiments. As we systematically increase the spatial dimensions of the numerical models by orders of magnitude, we calculate each component of the energy budget both before and after the first thrust fault pair develops. The increase of both the bulk stiffness and slip weakening distance from the laboratory- to crustal-scale produces a scale-invariant partitioning of the energy budget, relative to the total work done on the system. The components scale as power laws with exponents of three. Consequently, accurate laboratory simulations of the energetics of deformation within crustal accretionary wedges require careful scaling of the stiffness and slip weakening distance. Preceding thrust fault development at both the laboratory and crustal scale, the internal work consumes the largest portion of the budget (67-77%) and frictional work consumes the next largest portion (17-27%). Following thrusting, frictional work and internal work consume similar portions of the energy budget (38-50%). The sum of the remaining energy budget components, including gravitational work, seismic work, and the work of fracture propagation, consume <10-15% of the total energy budget preceding and following thrust fault development.
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影响因子:
5.3
作者:
J. Herbert;M. Cooke;P. Souloumiac;E. Madden;Baptiste Mary;B. Maillot
通讯作者:
J. Herbert;M. Cooke;P. Souloumiac;E. Madden;Baptiste Mary;B. Maillot
DOI:
--
发表时间:
2000
期刊:
影响因子:
--
作者:
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DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
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通讯作者:
B. Meade
影响因子:
3
作者:
Mikumo, T;Olsen, KB;Yagi, Y
通讯作者:
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影响因子:
--
作者:
M. D. Castello;M. Cooke
通讯作者:
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