LOGIN TO YOUR ACCOUNT

Username
Password
Remember Me
Or use your Academic/Social account:

CREATE AN ACCOUNT

Or use your Academic/Social account:

Congratulations!

You have just completed your registration at OpenAire.

Before you can login to the site, you will need to activate your account. An e-mail will be sent to you with the proper instructions.

Important!

Please note that this site is currently undergoing Beta testing.
Any new content you create is not guaranteed to be present to the final version of the site upon release.

Thank you for your patience,
OpenAire Dev Team.

Close This Message

CREATE AN ACCOUNT

Name:
Username:
Password:
Verify Password:
E-mail:
Verify E-mail:
*All Fields Are Required.
Please Verify You Are Human:
fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Publisher: The Geological Society of America
Languages: English
Types: Article
Subjects:
Identifiers:doi:10.1130/B31266.1
Central Iran provides an ideal region to study the long-term morphotectonic response to the nucleation and propagation of intraplate faulting. In this study, a multidisciplinary approach that integrates structural and stratigraphic field investigations with apatite (U+Th)/He (AHe) thermochronometry is used to reconstruct the spatio-temporal evolution of the Kuh-e-Faghan Fault (KFF) in northeastern Central Iran. The KFF is a narrow, ca. 80 km long, deformation zone that consists of three main broadly left stepping, E-W trending, dextral fault strands that cut through the Mesozoic-Paleozoic substratum and the Neogene-Quaternary sedimentary cover. The AHe thermochronometry results indicate that the intra-fault blocks along the KFF experienced two major episodes of fault-related exhumation at ~18 Ma and ~4 Ma. The ~18 Ma faulting/exhumation episode is chiefly recorded by the structure and depositional architecture of the Neogene deposits along the KFF. A source-to-sink scenario can be reconstructed for this time frame, where topographic growth caused the synchronous erosion/exhumation of the pre-Neogene units and deposition of the eroded material in the surrounding fault-bounded continental depocenters. Successively, the KFF gradually entered a period of relative tectonic quiescence and, probably, of regional subsidence during which a thick pile of fine-grained onlapping sediments were deposited. This may have caused resetting of the He ages of apatite in the pre-Neogene and the basal Neogene successions. The ~4 Ma faulting episode caused the final exhumation of the fault system, resulting in the current fault zone and topography. The two fault-related exhumation episodes fit with the regional early Miocene collision-enhanced uplift/exhumation, and the late Miocene–early Pliocene widespread tectonic reorganization of the Iranian plateau. The reconstructed long term, spatially and temporally punctuated fault system evolution in intraplate Central Iran during Neogene-Quaternary times may reflect states of far-field stress changes at the collisional boundaries.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • Schopfer, M. P., and Steyrer, H. P., 2001, Experimental modeling of strike-slip faults and the self-similar behavior: Memoirs of the Geological Society of America, p. 21-28.
    • Schrank, C. E., and Cruden, A. R., 2010, Compaction control of topography and fault network structure along strike-slip faults in sedimentary basins: Journal of Structural Geology, v. 32, no. 2, p. 184-191, doi: 10.1016/j.jsg.2009.11.003.
    • Sella, G. F., Dixon, T. H., and Mao, A., 2002, Revel: A model for recent plate velocities from space geodesy: Journal of Geophysical Research, v. 107, no. 10.1029, p. 209-226, doi:10.1029/2000JB000033.
    • Shabanian, E., Bellier, O., Siame, L., Arnaud, N., Abbassi, M. R., and Cochemé, J.-J., 2009a, New tectonic configuration in NE Iran: Active strike-slip faulting between the Kopeh Dagh and Binalud mountains: Tectonics, v. 28, no. 5, doi: 10.1029/2008tc002444.
    • Shabanian, E., Siame, L., Bellier, O., Benedetti, L., and Abbassi, M. R., 2009b, Quaternary slip rates along the northeastern boundary of the Arabia-Eurasia collision zone (Kopeh Dagh Mountains, Northeast Iran): Geophysical Journal International, v. 178, no. 2, p. 1055-1077, doi: 10.1111/j.1365
    • Shabanian, E., Bellier, O., Abbassi, M. R., Siame, L., and Farbod, Y., 2010, Plio-Quaternary stress states in NE Iran: Kopeh Dagh and Allah Dagh-Binalud mountain ranges: Tectonophysics, v. 480, no. 1-4, p. 280-304, doi: 10.1016/j.tecto.2009.10.022.- 246X.2009.04183.x.
    • Sheldon, H. A., Barnicoat, A. C., and Ord, A., 2006, Numerical modelling of faulting and fluid flow in porous rocks: An approach based on critical state soil mechanics: Journal of Structural Geology, v. 28, no. 8, p. 1468-1482, doi: 10.1016/j.jsg.2006.03.039.
    • Simons, W. J. F., Socquet, A., Vigny, C., Ambrosius, B. A. C., Haji Abu, S., Promthong, C., Subarya, C., Sarsito, D. A., Matheussen, S., Morgan, P., and Spakman, W., 2007, A
  • No related research data.
  • No similar publications.

Share - Bookmark

Cite this article