Seismicity and the State of Stress in the Dezful Embayment, Zagros Fold and Thrust Belt

2021 ◽  
Author(s):  
Ali Yaghoubi ◽  
SeyedBijan Mahbaz ◽  
Maurice Dusseault ◽  
Yuri Leonenko
Keyword(s):  
The State ◽  
Thrust Belt ◽  
Dezful Embayment ◽  
State Of Stress ◽  
Fold And Thrust Belt

scholarly journals Seismicity and the State of Stress in the Dezful Embayment, Zagros Fold and Thrust Belt

2020 ◽  
Author(s):  
Ali Yaghoubi ◽  
SeyedBijan Mahbaz ◽  
Maurice Dusseault ◽  
Yuri Leonenko
Keyword(s):  
The State ◽  
Thrust Belt ◽  
Dezful Embayment ◽  
State Of Stress ◽  
Fold And Thrust Belt

scholarly journals Seismicity and the State of Stress in the Dezful Embayment, Zagros Fold and Thrust Belt

Geosciences ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 254
Author(s):  
Ali Yaghoubi ◽  
SeyedBijan Mahbaz ◽  
Maurice B. Dusseault ◽  
Yuri Leonenko
Keyword(s):  
Stress State ◽  
Sedimentary Cover ◽  
Strike Slip ◽  
Focal Mechanisms ◽  
Fault System ◽  
Reverse Fault ◽  
Thrust Belt ◽  
Dezful Embayment ◽  
State Of Stress ◽  
Fold And Thrust Belt

This study focuses on determining the orientation and constraining the magnitude of present-day stresses in the Dezful Embayment in Iran’s Zagros Fold and Thrust Belt. Two datasets are used: the first includes petrophysical data from 25 wells (3 to 4 km deep), and the second contains 108 earthquake focal mechanisms, mostly occurring in blind active basement faults (5 to 20 km deep). Formal stress inversion analysis of the focal mechanisms demonstrates that there is currently a compressional stress state ( in the basement. The seismologically determined SHmax direction is 37° ± 10°, nearly perpendicular to the strike of most faults in the region. However, borehole geomechanics analysis using rock strength and drilling evidence leads to the counterintuitive result that the shallow state of stress is a normal/strike-slip regime. These results are consistent with the low seismicity level in the sedimentary cover in the Dezful Embayment, and may be evidence of stress decoupling due to the existence of salt layers. The stress state situation in the field was used to identify the optimally oriented fault planes and the fault friction coefficient. This finding also aligns with the prediction Coulomb faulting theory in that the N-S strike-slip basement Kazerun Fault System has an unfavorable orientation for slip in a reverse fault regime with an average SW-NE SHmax orientation. These results are useful for determining the origin of seismic activity in the basin and better assessing fault-associated seismic hazards in the area.

Deformation and kinematic evolution of the subsurface structures: Zagros foreland fold-and-thrust belt, northern Dezful Embayment, Iran

2017 ◽  
Vol 107 (4) ◽  
pp. 1287-1304 ◽  
Author(s):  
Khalil Sarkarinejad ◽  
Raana Razavi Pash ◽  
Hossein Motamedi ◽  
Mohammad Yazdani
Keyword(s):  
Thrust Belt ◽  
Dezful Embayment ◽  
Subsurface Structures ◽  
Kinematic Evolution ◽  
Fold And Thrust Belt

Tectonic constraints for hydrocarbon targets in the Dezful Embayment, Zagros Fold and Thrust Belt, SW Iran

2017 ◽  
Vol 157 ◽  
pp. 1220-1228 ◽  
Author(s):  
Mostafa Ghanadian ◽  
Ali Faghih ◽  
Iraj Abdollahie Fard ◽  
Bernhard Grasemann ◽  
Bahman Soleimany ◽  
...  
Keyword(s):  
Thrust Belt ◽  
Dezful Embayment ◽  
Fold And Thrust Belt ◽  
Sw Iran

HYDROCARBON MIGRATION AND CHARGE HISTORY IN THE KARANJ, PARANJ AND PARSI OILFIELDS, SOUTHERN DEZFUL EMBAYMENT, ZAGROS FOLD‐AND‐THRUST BELT, SW IRAN

2020 ◽  
Vol 43 (3) ◽  
pp. 341-357
Author(s):  
M. Vatandoust ◽  
A. Faghih ◽  
S. Asadi ◽  
A. M. Azimzadeh ◽  
B. Soleimany
Keyword(s):  
Thrust Belt ◽  
Hydrocarbon Migration ◽  
Dezful Embayment ◽  
Fold And Thrust Belt ◽  
Sw Iran

Structural pattern of the Zagros fold-and-thrust belt in the Dezful Embayment (SW Iran)

2006 ◽  
Author(s):  
Stefano Carruba ◽  
Cesare R. Perotti ◽  
Raffaele Buonaguro ◽  
Roberto Calabrò ◽  
Roberto Carpi ◽  
...  
Keyword(s):  
Thrust Belt ◽  
Structural Pattern ◽  
Dezful Embayment ◽  
Fold And Thrust Belt ◽  
Sw Iran

Paleoseismology of a newly discovered scarp in the Yakima fold-and-thrust belt, Kittitas County, Washington

2013 ◽  
Author(s):  
Elizabeth A. Barnett ◽  
Brian L. Sherrod ◽  
Robert Norris ◽  
Douglas Gibbons
Keyword(s):  
Thrust Belt ◽  
Fold And Thrust Belt

QUANTIFYING SHORTENING ACROSS THE CENTRAL APPALACHIAN FOLD-AND-THRUST BELT OF WEST VIRGINIA

2016 ◽  
Author(s):  
Daniel Benjamin Lammie ◽  
◽  
Peter B. Sak ◽  
Nadine McQuarrie
Keyword(s):  
West Virginia ◽  
Thrust Belt ◽  
Fold And Thrust Belt
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