کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6347781 | 1621550 | 2016 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Impact of gravity forces and topography denudation on normal faulting in Central-Western Pyrenees: Insights from 2D numerical models
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم زمین و سیاره ای (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Impact of gravity forces and topography denudation on normal faulting in Central-Western Pyrenees: Insights from 2D numerical models Impact of gravity forces and topography denudation on normal faulting in Central-Western Pyrenees: Insights from 2D numerical models](/preview/png/6347781.png)
چکیده انگلیسی
Normal faulting mechanisms observed in the northern foothills of the Central-Western Pyrenees are remarkable, since one expects thrust faults at a convergent plate boundary. To understand the mechanisms involved, we used numerical modeling and investigated the impact of the following processes: gravitational potential energy associated with topography and dense crustal blocks; isostatic compensation in response to denudation and/or sedimentation. To decipher the effects of each process, we designed three model geometries and added a pre-existing weak fault where most of the seismicity occurs. To evaluate our model results, we derived the fault slip rate from the focal mechanisms in the region where we have the fault in our model. We found a slip rate of â¼15Â m/Ma, which is in agreement with our modelling results. We conclude that flexural rebound induced by surface processes is able to explain the seismicity in Central-Western Pyrenees.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Comptes Rendus Geoscience - Volume 348, Issues 3â4, MarchâApril 2016, Pages 173-183
Journal: Comptes Rendus Geoscience - Volume 348, Issues 3â4, MarchâApril 2016, Pages 173-183
نویسندگان
Manon Genti, Jean Chery, Philippe Vernant, Alexis Rigo,