Continental Transpression Evidence Checking along the Fault Dena: Iran, Middle Zagros
- 1 Department of Geology, Science and Research Branch, Islamic Azad University, Tehran, Iran
- 2 Department of Geology, Islamic Azad University, Tehran North Branch, Tehran, Iran
- 3 Department of Geology, Islamic Azad University, Shiraz Branch, Shiraz, Iran
- 4 Department of Geology, Islamic Azad University, Karaj Branch, Karaj, Iran
Abstract
Dena Fault is one of the fundamental and main structures with more than 130 km. One of the most important structural properties of this fault is changing in its trend s o that at least three structural trends are detectable along this fault. Some continental transpression evidences along fault Dena are checked. These evidences are: Fold ’ s axis has configuration step and mutual desire . Fold ’ s axis average preferred orientation makes angles less than 45 degrees with preferred orientation of the boundary faults. Strike-slip faults are arranged overlapping and territory. P harmonic sections are more than harmonic sections R. In the central and southern parts the type is transpression Trust and in the northern part the type is transpression shear. In the present strike-slip component right lateral of this fault is dominant to its trust component and Fault function in the present era, is right lateral reverse.
- Sanderson, D.J. and Marchini, R.D. (1984) Transpression. Journal of Structural Geology, 6, 449-458.
- Teyssier, C. and Tikoff, B. (1998) Strike-Slip Partitioned Transpression of the San Andreas Fault System: A Lithospheric-Scale Approach. In: Holdsworth, R.E., Strachan, R.A. and Dewey, J.F., Eds., Continental Transpressional and Transtensional Tectonics, Vol. 135, Geological Society of London Special Publication, London, 143-158.
- Dewey, J.F., Holdsworth, R.E. and Strachan, R.A. (1998) Transpression and Transtension Zones. In: Holdsworth, R.E., Strachan, R.A. and Dewey, J.F., Eds., Continental Transpressional and Transtensional Tectonics, Geological Society Special Publication, London, 1-13.
- Jones, R.R., Holdworth, R.E., Clegg, P., McCaffrey, K. and Tavernelli, E. (2004) Inclined Transpression. Journal of Structural Geology, 26, 1531-1548. http://dx.doi.org/10.1016/j.jsg.2004.01.004
- Fossen, H., Tikoff, B. and Teyssier, C. (1994) Strain Modelling of Transpressional and Transtensional Deformation. Norsk Geologisk Tidsskrift, 74, 134-145.
- Davison, I. (1994) Linked Fault Systems: Extensional, Strike-Slip and Contractional. In: Hancock, P.L., Ed., Continental Deformation, Pergamon Press, Oxford, 121-142.
- Keller, J.V.A., Hall, S.H. and McClay, K.R. (1997) Shear Fracture Pattern and Microstructural Evolution in Transpressional Fault Zones from Field and Laboratory Studies. Journal of Structural Geology, 19, 1531-1548. http://dx.doi.org/10.1016/S0191-8141(97)00042-4
- Tikoff, B. and Teyssier, C. (1994) Strain Modelling of Displacement-Field Partitioning in Transpressional Orogens. Journal of Structural Geology, 16, 1575-1588.
- Jones, R.R. and Tanner, P.W. (1995) Strain Partitioning in Transpression Zones. Journal of Structural Geology, 17, 793-802.
- Tavakoli, F., Walpersdorf, A., Authemayou, C., Nankali, H.R., Hatzfeld, D., Tatar, M., Djamour, Y., Nilforoushan, F. and Cotte, N. (2008) Distribution of the Right-Lateral Strike-Slip Motion from the Main Recent Fault to the Kazerun Fault System (Zagros, Iran): Evidence from Present-Day GPS Velocities. Earth and Planetary Science Letters, 275, 342-347. http://dx.doi.org/10.1016/j.epsl.2008.08.030
- Allen, M., Jackson, J. and Walker, R. (2004) Late Cenozoic Reorganization of the Arabia Eurasia Collision and the Comparison of Short-Term and Long-Term Deformation Rates. Tectonics, 23, 1-16.
- Sarkarinejad, K. and Azizi, A. (2008) Slip Partitioning and Inclined Dextral Transpression along the Zagros Thrust System, Iran. Journal of Structural Geology, 30, 116-136. http://dx.doi.org/10.1016/j.jsg.2007.10.001