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Sedimetology and magnetic susceptibility of Mobarak formation (Lower Carboniferous in central and eastern Alborz Mountains, North of Iran).
Sardar Abadi, Mehrdad; Da Silva, Anne-Christine; Boulvain, Frédéric et al.
2011In koptikova, Elena (Ed.) Miroslav Krs Conference: Time, Magnetism, Records, Systems and Solutions, Prague 12-18 October 2011
 

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Keywords :
Lower Carboniferous; Sedimentology; Magnetic susceptibility; Mobarak Formation; Iran; Alborz basin
Abstract :
[en] The Mobarak formation (lower Carboniferous) corresponds to a carbonate platform which was located in the northern margin of Gondwana. This work is focused on the two stratigraphic sections located in central and eastern Alborz Mountains: the Aruo and Shahmirzad sections. Palaeoenvironments are corresponding to a carbonate ramp platform with frequent storm deposits. Different facies have been observed and are from proximal to distal: (1) crinoid banks and lagoonal facies with abundant peloids and oncoid; (2) in-situ bioherms, mainly constituted by accumulations of tabulate corals, shell fragments and crinoids steams; (3) distal to proximal tempestites and (4) bioturbated dark argillaceous mudstone. The main sedimentological evolution is a shallowing-upward trend corresponding to the transition from distal to proximal tempestites, bioherms, crinoids banks and lagoonal facies. Magnetic susceptibility data are also provided in order to get a better understanding of sedimentary dynamics and correlation between the two sections. It appears that MS values are the lowest for the more energetic environments which corresponds to the trends observed in the Devonian carbonate ramp in Belgium.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Sardar Abadi, Mehrdad ;  Université de Liège - ULiège > Form. doct. sc. (géologie - Bologne)
Da Silva, Anne-Christine  ;  Université de Liège - ULiège > Département de géologie > Pétrologie sédimentaire
Boulvain, Frédéric  ;  Université de Liège - ULiège > Département de géologie > Pétrologie sédimentaire
Mossadegh, Hossein;  University of Damghan, Iran > Geology > sedimentary Petrology
Language :
English
Title :
Sedimetology and magnetic susceptibility of Mobarak formation (Lower Carboniferous in central and eastern Alborz Mountains, North of Iran).
Publication date :
12 October 2011
Event name :
Third IGCP 580 annual meeting, Miroslav Krs Conference: Time, Magnetism, Records, Systems and Solutoins, Prague
Event organizer :
University of Charles
Event place :
Prague, Czechia
Event date :
from 12-10-2011 to 18-10-2011
By request :
Yes
Audience :
International
Main work title :
Miroslav Krs Conference: Time, Magnetism, Records, Systems and Solutions, Prague 12-18 October 2011
Main work alternative title :
[en] Third IGCP 580 Meeting
Editor :
koptikova, Elena
Publisher :
Institute of Geology ASCR, v. v. i., Prague, Czechia
Edition :
1st ed.
Pages :
26
Available on ORBi :
since 20 July 2015

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