Results 51 to 60 of about 1,530 (111)

Oroclinal bending, distributed thrust and strike-slip faulting, and the accommodation of Arabia–Eurasia convergence in NE Iran since the Oligocene

open access: yes, 2010
Regional shortening is accommodated across NE Iran in response to the collision of Arabia with Eurasia. We examine how N2013S shortening is achieved on major thrust systems bounding the eastern branch of the Alborz (east of 57°E), Sabzevar and Kuh-e ...
Hollingsworth, James   +7 more
core   +2 more sources

Robust fracture intensity estimation from petrophysical logs and mud loss data: a multi-level ensemble modeling approach

open access: yesJournal of Petroleum Exploration and Production Technology
This study presents a pioneering machine learning approach to continuously model fracture intensity in hydrocarbon reservoirs using solely conventional well logs and mud loss data.
Ahmad Azadivash   +5 more
doaj   +1 more source

Tectonique active du domaine de connexion entre l'Alborz et le Kopeh Dagh (NE Iran)

open access: yes, 2010
Ce travail présente une analyse des déformations actives de l'Est de l'Alborz et l'Ouest du Kopeh Dagh, en relation avec la collision Arabie-Eurasie. L'analyse de la cinématique de faille (vecteurs-glissements, mesurés sur les plans de faille et déduits ...
SHABANIAN, Esmaeil   +2 more
core  

Crustal and uppermost mantle shear-wave velocity structure beneath the Northeastern Iranian Plateau using an analysis of receiver function and surface‑wave tomography [PDF]

open access: yes
In this study, we investigate the crustal velocity structure and Moho discontinuity depth beneath the NE Iran continental collision zone through joint inversion of P receiver function and Rayleigh wave group velocity dispersion curves.
Roostaee, Fatemeh   +3 more
core   +1 more source

The deep structure of the Iranian Plateau [PDF]

open access: yes, 2015
High resolution structures of the lithosphere–asthenosphere system beneath a seismic profile in Iran are obtained by the simultaneous inversion of data from receiver functions and fundamental mode Rayleigh wave group velocity and validated by modeling ...
Romanelli, F.   +7 more
core   +2 more sources

High resolution image of uppermost mantle beneath NE Iran continental collision zone

open access: yes, 2012
We invert 3775 relative P wave arrival times using the ACH damped least square method of Aki et al. (1977) to study upper mantle structure beneath the NE Iran continental collision zone.
A. Kaviani   +9 more
core   +2 more sources

Introduction of Ammonites from the Dalichai Formation in Polour Section Central Alborz, Iran

open access: yesIndonesian Journal of Earth Sciences
The studies done on Dalichai Formation in Central Alborz, South Polour Formation of an 80 m thick that are systematically sampled at intervals of 2 meters and selected the 40 rock samples for the preparation of thin sections considered and in addition ...
Masoomeh Sohrabi Mollayousefi   +1 more
doaj   +1 more source

Extrusion tectonics and subduction in the eastern South Caspian region since 10 Ma: REPLY

open access: yes
In our paper (Hollingsworth et al., 2008), we present a model of how the distribution of active faults in northeast Iran might accommodate both the northward motion of Central Iran and the westward motion of the South Caspian region, relative to Eurasia.
Walker, Richard   +3 more
core   +1 more source

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