Results 31 to 40 of about 148 (98)

Comparison of Tidalites in Siliciclastic, Carbonate, and Mixed Siliciclastic‐Carbonate Systems: Examples from Cambrian and Devonian Deposits of East‐Central Iran

open access: yesInternational Scholarly Research Notices, Volume 2013, Issue 1, 2013., 2013
For the comparison of lithofacies in siliciclastic, carbonate, and mixed siliciclastic‐carbonate tidal systems, three successions including Top Quartzite (Lower‐Middle Cambrian), Deranjal Formation (Upper Cambrian), and Padeha Formation (Lower‐Middle Devonian) in the north of Kerman and Tabas regions (SE and E central Iran) were selected and described,
Hamed Zand-Moghadam   +7 more
wiley   +1 more source

Biostratigraphy and Sequence Stratigraphy of Paleogene Deposits in Central Kopet‐Dagh Basin (NE of Iran)

open access: yesJournal of Geological Research, Volume 2013, Issue 1, 2013., 2013
In this paper, the biostratigraphy and sequence stratigraphy of marine Paleogene deposits from the Kopet‐Dagh basin (NE of Iran) are described. Particularly the absence of Morozovella genus is discussed. In addition, the Paleocene/Eocene boundary has been studied in detail using the record of planktonic and larger benthic foraminifera. This boundary is
Batool Rivandi   +5 more
wiley   +1 more source

Geology, petrology, geochemistry and geochronology of Tarik Darreh plutonic rocks, northeastern Iran

open access: yesJournal of Economic Geology, 2020
Introduction The investigated area in northeastern Iran that is known as the Tarik Darreh arsenopyrite-Au-W prospecting target is situated in the Kopeh Dagh zone (Fig. 1).
Jamal Ghavi   +4 more
doaj   +1 more source

Lg Coda Variations in North‐Central Iran

open access: yesInternational Journal of Geophysics, Volume 2012, Issue 1, 2012., 2012
Ground motion records in north‐central Iran have been used in order to obtain the Lg coda Q, using stack spectral ratio method. The lateral variations in Q0 and its frequency dependence are estimated in the 0.3–7.0 Hz frequency range which led to Q = 267(±32) × f0.71(±0.14).
Mojtaba Naghavi   +3 more
wiley   +1 more source

Assessment of Climate Change Impacts on the Efficiency of Kopeh Dagh Conserved Area (Case study: Persian Gazella) [PDF]

open access: yesمحیط زیست و مهندسی آب
Persian Gazelle (Gazella subgutturosa subgutturosa) is one of the most important herbivores of the steppes of Iran, which is found in different plains and desert areas. Today, the distribution of this species is limited to special areas, which has caused
Fateme Bagheri Azghadi   +2 more
doaj   +1 more source

Coupling of Tectonics, Climate, and Lithology in Orogenic Systems: Insights From Cosmogenic 10Be Erosion Rates and River Profile Inversion Modeling in the Talesh Mountains, NW Iranian Plateau

open access: yesTectonics, Volume 44, Issue 2, February 2025.
Abstract The landscape of the Talesh Mountains, located in the NW sector of the Iranian Plateau (within the Arabia‐Eurasia collision zone), results from the interplay of multiple forces. To explore the interaction between tectonics, climate, and lithology we present 11 new erosion rates derived from meteoric 10Be on the eastern (wetter) and western ...
Mohammad Moumeni   +8 more
wiley   +1 more source

PROVENANCE OF KARAKUM DESERT SAND (TURKMENISTAN): LITHIC-RICH OROGENIC SIGNATURE OF CENTRAL ASIAN DUNE FIELDS

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2018
Major deserts do not necessarily consist of eolian dunes as quartz-rich as those of the Great Nafud, Rub’ al Khali, Sahara, and Mega-Kalahari sand seas accumulated in anorogenic settings of Arabia and Africa. The Karakum dune field of Turkmenistan is one
EDUARDO GARZANTI   +3 more
doaj   +1 more source

Block Rotations in NW Iran in Response to the Arabia‐Eurasia Collision Constrained by Paleomagnetism

open access: yesTectonics, Volume 43, Issue 8, August 2024.
Abstract Northwest Iran is a seismically active region dominated by NW‐SE trending strike‐slip faults, such as the North Tabriz and Qosha Dagh faults, and smaller NNE‐SSW striking faults. The Bozgush Mountains are shaped by these faults and divided into two domains that show a difference in strike. To quantify rotational tectonic deformation in NW Iran,
Ali Niknam   +4 more
wiley   +1 more source

Provenance and Fluvial‐Aeolian Process of Kyzylkum Desert: Constrained by Detrital Zircon U–Pb Dating

open access: yesGeophysical Research Letters, Volume 51, Issue 13, 16 July 2024.
Abstract The Kyzylkum Desert, as a transition area of different dust source in Central Asia, provides and reserves a large amount of dust transported by different atmospheric circulation systems, affecting Uzbekistan and downwind East Asia. However, there remains very few investigations about sediment sources and control factors of the desert.
Mingyu Zhang   +5 more
wiley   +1 more source

A comprehensive review of HVS‐I mitochondrial DNA variation of 19 Iranian populations

open access: yesAnnals of Human Genetics, Volume 88, Issue 3, Page 259-277, May 2024.
Abstract Iran is located along the Central Asian corridor, a natural artery that has served as a cross‐continental route since the first anatomically modern human populations migrated out of Africa. We compiled and reanalyzed the HVS‐I (hypervariable segment‐I) of 3840 mitochondrial DNA (mtDNA) sequences from 19 Iranian populations and from 26 groups ...
Motahareh Amjadi   +4 more
wiley   +1 more source

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