Results 61 to 70 of about 376 (117)

Investigating the Reliability of Ground Motion Intensity Measures

open access: yesAdvances in Civil Engineering, Volume 2024, Issue 1, 2024.
The uncertainty and unreliability in the probabilistic seismic demand models (PSDMs) can be addressed in the framework of performance‐based earthquake engineering (PBEE). Some characteristics have been introduced and extensively investigated in the earthquake engineering literature for appropriateness (i.e., optimality) of various intensity measures ...
Ali Jafari   +3 more
wiley   +1 more source

Paleostress Analysis in the Northern Birjand, East of Iran: Insights from Inversion of Fault-Slip Data [PDF]

open access: yes, 2022
This research assessed stress regimes and fields in eastern Iran using fault-slip data and the tectonic events associated with these changes. Our stress analysis of the brittle structures in the Shekarab Mountains revealed significant changes in stress ...
Derakhshani, Reza   +8 more
core   +2 more sources

Palaeobiogeographical study of the Late Ordovician brachiopods of Iran based on quantitative analysis [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches
Brachiopods, as one of the most important benthic fauna in the Late Ordovician, show a great abundance and diversity in many continents.
Akbar Sohrabi
doaj   +1 more source

Oursins toxasteridés du genre Heteraster dans le Crétacé inférieur du haut bassin du Zagros, Sud de l'Iran [PDF]

open access: yes, 2016
Two species of spatangoid echinoid belonging to Heteraster Orbigny, 1853, are described from Lower Cretaceous deposits (Gadvan and Dariyan formations) at the Kuh-e Gadvan and Banesh sections situated in Zagros Mountains, south of Iran. Heteraster couloni
Adabi, Mohammad Hossein   +5 more
core   +1 more source

Structural evolution of the Kopeh Dagh fold-and-thrust belt (NE Iran) and interactions with the South Caspian Sea Basin and Amu Darya Basin [PDF]

open access: yesMarine and Petroleum Geology, 2014
We present a detailed stratigraphic and structural study of the Kopeh Dagh fold-and-thrust belt in NE Iran, which is an investigation of the complex polyphased tectonic history of this belt and its links with the adjacent South Caspian Sea and Amu Darya basins. Based on numerous field surveys, a large amount of 2D and 3D seismic data, borehole data and
Robert, Alexandra M.M.   +6 more
openaire   +2 more sources

Structural Analysis of the Western Part of Shotori Mountain Range; Eastern Iran [PDF]

open access: yes, 2022
NW-SE trending Shotori range has some structural elements such as folds and fractures (including thrust and strike-slip faults), following almost a similar trend.
Abbaspour, Razieh   +5 more
core  

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

The Dzhungarian fault: Late Quaternary tectonics and slip rate of a major right-lateral strike-slip fault in the northern Tien Shan region [PDF]

open access: yes, 2013
The Dzhungarian strike-slip fault of Central Asia is one of a series of long, NW-SE right-lateral strike-slip faults that are characteristic of the northern Tien Shan region and extends over 300 km from the high mountains into the Kazakh Platform.
Abdrakhmatov, K   +6 more
core   +3 more sources

Crustal and (sub)lithospheric structure beneath the Iranian Plateau from geophysical modeling [PDF]

open access: yes, 2019
The thesis presents a geophysical study of the Iranian Plateau and the surrounding regions in order to understand the crustal and upper mantle structure.
Mousavi, Naeim
core  

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

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