Uranium–lead ages of apatite from iron oxide ores of the Bafq District, East-Central Iran

2010 ◽  
Vol 46 (1) ◽  
pp. 9-21 ◽  
Author(s):  
Heinz-Günter Stosch ◽  
Rolf L. Romer ◽  
Farahnaz Daliran ◽  
Dieter Rhede
Keyword(s):  
Iron Oxide ◽  
Central Iran ◽  
East Central

Facies analysis of a large-scale Jurassic shelf-lagoon: the Kamar-e-Mehdi Formation of east-central Iran

Facies ◽  
2009 ◽  
Vol 56 (1) ◽  
pp. 59-87 ◽  
Author(s):  
Markus Wilmsen ◽  
Franz T. Fürsich ◽  
Kazem Seyed-Emami ◽  
Mahmoud R. Majidifard ◽  
Massoud Zamani-Pedram
Keyword(s):  
Large Scale ◽  
Facies Analysis ◽  
Central Iran ◽  
East Central

Sequence stratigraphy of the Early–Middle Devonian succession (Padeha Formation) in Tabas Block, East-Central Iran: Implication for mixed tidal flat deposits

Palaeoworld ◽  
2014 ◽  
Vol 23 (1) ◽  
pp. 31-49 ◽  
Author(s):  
Hamed Zand-Moghadam ◽  
Reza Moussavi-Harami ◽  
Asadollah Mahboubi
Keyword(s):  
Sequence Stratigraphy ◽  
Tidal Flat ◽  
Middle Devonian ◽  
Central Iran ◽  
East Central

Ordovician echinoderms from the Tabas and Damghan regions, Iran: palaeobiogeographical implications

2005 ◽  
Vol 176 (3) ◽  
pp. 231-242 ◽  
Author(s):  
Bertrand Lefebvre ◽  
Mansooreh Ghobadipour ◽  
Elise Nardin
Keyword(s):  
South China ◽  
Central Iran ◽  
East Central ◽  
First Report ◽  
Middle Ordovician ◽  
Alborz Range ◽  
First Time

Abstract Two echinoderm assemblages are described in the Middle Ordovician of Iran (Darriwilian). The Simeh Kuh section (Damghan area, eastern Alborz range) has yielded a rich and diverse blastozoan fauna consisting of fistuliporite (Echinosphaerites, Heliocrinites) and dichoporite rhombiferans (cheirocrinids indet., hemicosmitids indet.), as well as aristocystitid (Sinocystis) and sphaeronitid diploporites (Glyptosphaerites, Tholocystis). Heliocrinites, cheirocrinids, hemicosmitids, Glyptosphaerites, and Tholocystis are reported for the first time in the Ordovician of Iran. A less diverse assemblage was collected in the Shirgesht section (Tabas area, Derenjal Mountains), and represents the first report of Ordovician echinoderms in east-central Iran. The Shirgesht fauna includes fistuliporite rhombiferans (Heliocrinites), aristocystitid and sphaeronitid diploporites. The new Iranian material documents some of the earliest known assemblages of diploporites and rhombiferans, and thus, brings important information on the radiation of these two major blastozoan classes. The two Iranian echinoderm faunas show relatively strong affinities with contemporary faunas from Baltica, the northern Gondwanan margin (e.g. Bohemia, Morocco), Sibumasu, and South China terranes. Aristocystitids suggest stronger links between Iran, and regions from the “Province à Amphorides” (northern Gondwanan margin, Sibumasu, South China). These observations support a palaeogeographical position of Iran at intermediate palaeolatitudes during the early Middle Ordovician, in the periphery of the northeastern Gondwanan margin.

Conodonts from the Niur Formation (Silurian) of the Derenjal Mountains, Central Iran

2013 ◽  
Vol 150 (4) ◽  
pp. 639-650 ◽  
Author(s):  
P. MÄNNIK ◽  
C. G. MILLER ◽  
V. HAIRAPETIAN
Keyword(s):  
Central Iran ◽  
The Other ◽  
Precise Location ◽  
East Central ◽  
Rheic Ocean ◽  
Lowermost Part

AbstractA Llandovery to Ludlow age for the Niur Formation in the Derenjal Mountains (east-central Iran) is proposed based on new conodont data and previous work on other fossils. The uppermost part of the studied section yielded no diagnostic conodonts but may be Pridoli in age. Some intervals can be dated more precisely: Unit 11 (at least its upper part) is middle Telychian in age and corresponds to thePterospathodus amorphognathoides lennartiZone; the lowermost part of Unit 16 is earliest Ludlow in age and corresponds to theKockelella crassaZone; the uppermost Unit 16 is late Ludlow (Ludfordian) in age and corresponds to theOzarkodina snajdriInterval Zone. The Llandovery–Wenlock boundary lies between units 12 and 13 based on sedimentological evidence. The precise location of the Wenlock–Ludlow boundary in the section is not clear but lies below Unit 16. Present-day Iran was located far away from Baltica and Laurentia, on the other side of the Rheic Ocean. This ocean does not seem to have been a major migration barrier for most organisms including the conodonts.

Estimation of site amplification, attenuation and source spectra of S-waves in the East-Central Iran

2011 ◽  
Vol 31 (10) ◽  
pp. 1397-1413 ◽  
Author(s):  
B. Hassani ◽  
H. Zafarani ◽  
J. Farjoodi ◽  
A. Ansari
Keyword(s):  
Site Amplification ◽  
Central Iran ◽  
East Central ◽  
S Waves ◽  
Source Spectra

An overview of the stratigraphy and facies development of the Jurassic System on the Tabas Block, east-central Iran

2009 ◽  
Vol 312 (1) ◽  
pp. 323-343 ◽  
Author(s):  
Markus Wilmsen ◽  
Franz Theodor Fürsich ◽  
Kazem Seyed-Emami ◽  
Mahmoud Reza Majidifard
Keyword(s):  
Central Iran ◽  
East Central ◽  
Jurassic System

Geochemistry of Carboniferous Sandstones (Sardar Formation), East-Central Iran: Implication for Provenance and Tectonic Setting

2012 ◽  
Vol 86 (5) ◽  
pp. 1200-1210 ◽  
Author(s):  
Mohammad KHANEHBAD ◽  
Reza MOUSSAVI-HARAMI ◽  
Asadollah MAHBOUBI ◽  
Mehdi NADJAFI ◽  
Mohammad Hosein MAHMUDY GHARAIE
Keyword(s):  
Tectonic Setting ◽  
Central Iran ◽  
East Central
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