Results 91 to 100 of about 376 (117)

A Major Medieval Earthquake on the Main Köpetdag (Kopeh Dagh) Fault, Turkmenistan

Bulletin of the Seismological Society of America, 2022
ABSTRACTThe Main Köpetdag fault (MKDF) of Turkmenistan is one of the longest (≈500 km) and the most rapidly straining (9.1 ± 1.3 mm/yr) faults of the Arabia–Eurasia collision zone, and yet, in contrast to adjacent parts of Turkmenistan and Iran, it has little in the way of observed seismicity.
Nicholas Dodds, Geldy Begenjev, Yevgeney Bezmenov, Christoph Gruetzner, Robert Mirzin, Edward Rhodes, Richard T. Walker, Paul Wordsworth   +7 more
openaire   +1 more source

The peri-Gondwanian Early Silurian trilobites from Kopeh Dagh, Iran

Historical Biology, 2019
Silurian trilobites of the Niur Formation in the Robat-e-Gharebil area are described and illustrated. Three genera and five species are identified, including: Calymene dastanpouri sp. nov.
Hamed Ameri, Reza Arjmandzadeh, Khalil Ghoorcgi   +2 more
openaire   +1 more source

Planktonic foraminiferal biostratigraphy of the Turonian-Coniacian transition interval in the Kopeh-Dagh sedimentary basin, NE Iran

Stratigraphy, 2022
The Abderaz Formation was analyzed from four stratigraphic sections (Qaleh-Zo, Abderaz village, Mozduran pass (type section of the formation), and Chahchahe) in awest to east transect of the Kopeh-Dagh Basin. The Abderaz Formation is composed of light gray shale and marl alternated with limestone rich in echinoids and inoceramids.
Mohammad Haddadi, Mohammad Vahidinia, Mohamad Hosein Mahmudy Gharaie, Meysam Shafiee Ardestani, Dalila Zaghbib-Turki   +4 more
openaire   +1 more source

Nannostratigraphy and palaeoecology of uppermost Mozduran Formation in the Kopeh-Dagh range (NE Iran)

Arabian Journal of Geosciences, 2013
The Mozduran Formation includes light-coloured, thick-bedded to massive limestone and porous dolomitic limestone and dolomite. In this study, 13 samples from the uppermost Mozduran Formation were taken from two localities and examined for calcareous nannofossils.
Fatemeh Hadavi, Lida Khodadadi
openaire   +1 more source

Plio-Quaternary stress states in NE Iran: Kopeh Dagh and Allah Dagh-Binalud mountain ranges

Tectonophysics, 2010
Abstract NE Iran, including the Kopeh Dagh and Allah Dagh-Binalud deformation domains, comprises the northeastern boundary of the Arabia–Eurasia collision zone. This study focuses on the evolution of the Plio-Quaternary tectonic regimes of northeast Iran.
Shabanian, Esmaeil, Bellier, Olivier, Abbassi, Mohammad R., Siame, Lionel, Farbod, Yassaman   +4 more
openaire   +3 more sources

Geochemical characteristics of upper Jurassic carbonate reservoir bitumen in the Eastern Kopeh-Dagh, NE Iran

Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2018
Geochemical characteristics of solid bitumen in Upper Jurassic carbonate reservoir are investigated.
Bahram Alizadeh, Hossein Saadati, Elham Tarhandeh   +2 more
openaire   +1 more source

Plio–Quaternary tectonic regime changes in the transition zone between Alborz and Kopeh Dagh mountain ranges (NE Iran)

Tectonophysics, 2011
Abstract This paper is concerned with the changes in the Plio–Quaternary stress states in NE Iran and provides evidence for regional active deformation across a wide transition zone between the Alborz and Kopeh Dagh mountains. The Arabia–Eurasia convergence is involved in the strike–slip faulting along NE-trending left-lateral faults in the eastern ...
Javidfakhr, Bita, Bellier, Olivier, Shabanian, Esmaeil, Ahmadian, Seiran, Saidi, Abdollah   +4 more
openaire   +3 more sources

Integrated biostratigraphy and stage boundaries of the Abderaz Formation, east of the Kopeh-Dagh sedimentary basin, NE Iran

Journal of African Earth Sciences, 2014
Abstract The foraminiferal content of the well-known, foraminifera-rich Abderaz Formation of the Kopeh-Dagh basin in northeastern Iran was analyzed to determine biostratigraphy, age dating, chronostratigraphy and evolutionary trends. The Abderaz Formation was sampled at the following four sections: the Qarehso section, the Abderaz village section ...
Mohammad Vahidinia, Mohamed Youssef, Meysam Shafiee Ardestani, Abbas Sadeghi, Docho Dochev   +4 more
openaire   +1 more source

Introducing some echinoderms from the Tirgan Formation, Kopeh-Dagh Basin, NE of Iran

2011
A stratigraphic section from the Tirgan Formation was selected in Arkan village nearby Bojnourd city in order to study echinoderm fauna systematically. Many specimens of echinoderms, especially toxasteridae which is associated with brachiopods were collected and studied systematically in this paper.
Taherpour Khalilabad, Morteza, Aryaei, Ali asghar, Ashouri, Alireza, Ghaderi, Abbas   +3 more
openaire   +1 more source