Salvato in:
| Autore principale: | |
|---|---|
| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Universitat de Barcelona
2004
|
| Soggetti: | |
| Accesso online: | https://www.redalyc.org/articulo.oa?id=50520301 |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866817169647468544 |
|---|---|
| author | S-S. Xu |
| author_facet | S-S. Xu |
| contents | Tilting mechanisms in domino faults of the Sierra de San Miguelito, central Mexico S-S. Xu A. F. Nieto-Samaniego S. A. Alaniz-Álvarez Ciencias de la Tierra Rigid Strain Mexico Normal fault body rotation A system of normal faults with similar strike that bound rotated blocks in the Sierra de San Miguelito, centralMexico, was studied to determine the genesis of rotation and to estimate the extensional strain. We show thatrigid-body rotation was not the main deformation mechanism of the domino faults in this region. We proposevertical or inclined shear accommodated by slip on minor faults as the mechanism for strain in the blocks. Inorder to test quantitatively the amount of strain, we calculated the extension assuming vertical shear obtainingca. ev ~0.20. This value is in good agreement with extensions previously reported for the Mesa Central of Mexico.The bed extension required in this model reaches ca. 33% of the total horizontal extension (i. e. ebed =0.34ev). Assuming self-similar geometry for fault displacements, it is shown that bed strain required in shear modelscan be liberated by the small faults. If the strain is calculated using the rigid-body rotation model, the lengtheningis underestimated by up to 9%. This case study shows that shear models could be applied in volcanic zones. 2004 artículo científico 1695-6133 https://www.redalyc.org/articulo.oa?id=50520301 en http://www.redalyc.org/revista.oa?id=505 Geologica Acta: an international earth science journal application/pdf Universitat de Barcelona Geologica Acta: an international earth science journal (España) Num.3 Vol.2 |
| format | Artículo científico |
| id | redalyc_50520301 |
| language | en |
| publishDate | 2004 |
| publisher | Universitat de Barcelona |
| spellingShingle | Tilting mechanisms in domino faults of the Sierra de San Miguelito, central Mexico S-S. Xu Ciencias de la Tierra Rigid Strain Mexico Normal fault body rotation Tilting mechanisms in domino faults of the Sierra de San Miguelito, central Mexico S-S. Xu A. F. Nieto-Samaniego S. A. Alaniz-Álvarez Ciencias de la Tierra Rigid Strain Mexico Normal fault body rotation A system of normal faults with similar strike that bound rotated blocks in the Sierra de San Miguelito, centralMexico, was studied to determine the genesis of rotation and to estimate the extensional strain. We show thatrigid-body rotation was not the main deformation mechanism of the domino faults in this region. We proposevertical or inclined shear accommodated by slip on minor faults as the mechanism for strain in the blocks. Inorder to test quantitatively the amount of strain, we calculated the extension assuming vertical shear obtainingca. ev ~0.20. This value is in good agreement with extensions previously reported for the Mesa Central of Mexico.The bed extension required in this model reaches ca. 33% of the total horizontal extension (i. e. ebed =0.34ev). Assuming self-similar geometry for fault displacements, it is shown that bed strain required in shear modelscan be liberated by the small faults. If the strain is calculated using the rigid-body rotation model, the lengtheningis underestimated by up to 9%. This case study shows that shear models could be applied in volcanic zones. 2004 artículo científico 1695-6133 https://www.redalyc.org/articulo.oa?id=50520301 en http://www.redalyc.org/revista.oa?id=505 Geologica Acta: an international earth science journal application/pdf Universitat de Barcelona Geologica Acta: an international earth science journal (España) Num.3 Vol.2 |
| title | Tilting mechanisms in domino faults of the Sierra de San Miguelito, central Mexico |
| topic | Ciencias de la Tierra Rigid Strain Mexico Normal fault body rotation |
| url | https://www.redalyc.org/articulo.oa?id=50520301 |