Complex geometry and kinematics of subsidiary faults within a carbonate-hosted relay ramp
Complex geometry and kinematics of subsidiary faults within a carbonate-hosted relay ramp
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碳酸盐岩中继坡道内附属断层的复杂几何形状和运动学
DOI:
10.1016/j.jsg.2019.103915
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发表时间:
2020
影响因子:
3.1
通讯作者:
Mercuri M
中科院分区:
文献类型:
--
作者:
Mercuri M
Minor fault geometry and kinematics within relay ramps is strongly related to the stress field perturbations that can be produced when two major fault segments overlap and interact. Here we integrate classical fieldwork and interpretation of a virtual outcrop to investigate the geometry and kinematics of subsidiary faults within a relay ramp along the Tre Monti normal fault in the Central Apennines. Although the Tre Monti fault strikes parallel to the regional extension (NE-SW) it shows predominant dip-slip kinematics, suggesting a NW-SE oriented extension acting at sub-regional scale (1–10 km). Conversely, the slickenlines collected on the front segment of the relay ramp highlight right-lateral kinematics. The subsidiary faults in the relay ramp show a complex geometry (variable attitudes) and slickenlines describe multiple kinematics (left-lateral, dip-slip, right-lateral), independently of their orientation. Our fault slip analysis indicates that a local stress field retrieved from the kinematic inversion of the slickenlines collected on the front segment, and likely promoted by the interaction between the overlapping fault segments that bound the relay zone, can explain most of the geometry and kinematics of the subsidiary faults. Further complexity is added by the temporal interaction with both the regional and sub-regional stress fields.
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DOI:
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发表时间:
2004
期刊:
影响因子:
--
作者:
P. Montone;M. T. Mariucci;S. Pondrelli;A. Amato
通讯作者:
A. Amato
影响因子:
3.3
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A. Piatanesi
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
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K. McCaffrey;R. Holdsworth;J. Imber;P. Clegg;N. Paola;Richard R. Jones;R. Hobbs;N. Holliman;I. Trinks
通讯作者:
I. Trinks
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
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通讯作者:
F. Calamita
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
L. Valoroso;L. Chiaraluce;C. Collettini
通讯作者:
C. Collettini