Early Carboniferous siliciclastic-carbonates in east-central Iran versus coeval carbonates of north Iran: record of latest Tournaisian-early Visean tectonic events

Three stratigraphic sections of the Early Carboniferous Gachal Formation in the Kalmard area, central Iran were studied. The Gachal Formation shows alternation of siliciclastics and carbonates in repeated cyclic arrangements. The microfacies and depositional environment are described and reconstru...

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Autores principales: Arefifard, Sakineh, Vachard, Daniel
Formato: article artículo publishedVersion
Lenguaje:Inglés
Publicado: Instituto de Fisiografía y Geología. Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario 2016
Materias:
Lower Carboniferous
Central Iran
Carbonate Microfacies
Depositional environment
Sequence stratigraphy
Acceso en línea:http://hdl.handle.net/2133/6624
http://hdl.handle.net/2133/6624
Aporte de:
Repositorio Hipermedial de la Universidad Nacional de Rosario (UNR) de Universidad Nacional de Rosario
id I15-R121-2133-6624
record_format dspace
institution Universidad Nacional de Rosario
institution_str I-15
repository_str R-121
collection Repositorio Hipermedial de la Universidad Nacional de Rosario (UNR)
language Inglés
orig_language_str_mv eng
topic Lower Carboniferous
Central Iran
Carbonate Microfacies
Depositional environment
Sequence stratigraphy
spellingShingle Lower Carboniferous
Central Iran
Carbonate Microfacies
Depositional environment
Sequence stratigraphy
Arefifard, Sakineh
Vachard, Daniel
Early Carboniferous siliciclastic-carbonates in east-central Iran versus coeval carbonates of north Iran: record of latest Tournaisian-early Visean tectonic events
topic_facet Lower Carboniferous
Central Iran
Carbonate Microfacies
Depositional environment
Sequence stratigraphy
description Three stratigraphic sections of the Early Carboniferous Gachal Formation in the Kalmard area, central Iran were studied. The Gachal Formation shows alternation of siliciclastics and carbonates in repeated cyclic arrangements. The microfacies and depositional environment are described and reconstructed. Facies analyses indicate the presence of seven carbonate and one siliciclastic facies types, which are indicative of back-, inner- and middle-ramp settings. A mixed siliciclastic-carbonate ramp setting is proposed for the depositional environment of the Gachal Formation. This mixed lithology has only been reported from that central Iranian formation. The Mobarak Formation, coeval deposits of the Gachal Formation, in Alborz (northern Iran) is mainly composed of carbonates. The facies analysis of the carbonate portion of the Early Carboniferous Gachal Formation shows some resemblance with those of the Mobarak Formation, even though middle- and outer-ramp facies are more abundant in the Mobarak Formation. During the latest Tournaisianearliest Visean third-order, shallowing-upwards depositional sequences were recognized in the Gachal Formation in the study area. Tectonic activity (fault movements) was the main reason for thickness variations of the Gachal Formation members in these three studied section. Synsedimentary tectonic activity must have been responsible for the platform rising, leading to the erosion that created the siliciclastic influx into the Carboniferous basin in the Kalmard area. Our results show the importance of synsedimentary tectonics on the development of carbonate facies.
format article
artículo
publishedVersion
author Arefifard, Sakineh
Vachard, Daniel
author_facet Arefifard, Sakineh
Vachard, Daniel
author_sort Arefifard, Sakineh
title Early Carboniferous siliciclastic-carbonates in east-central Iran versus coeval carbonates of north Iran: record of latest Tournaisian-early Visean tectonic events
title_short Early Carboniferous siliciclastic-carbonates in east-central Iran versus coeval carbonates of north Iran: record of latest Tournaisian-early Visean tectonic events
title_full Early Carboniferous siliciclastic-carbonates in east-central Iran versus coeval carbonates of north Iran: record of latest Tournaisian-early Visean tectonic events
title_fullStr Early Carboniferous siliciclastic-carbonates in east-central Iran versus coeval carbonates of north Iran: record of latest Tournaisian-early Visean tectonic events
title_full_unstemmed Early Carboniferous siliciclastic-carbonates in east-central Iran versus coeval carbonates of north Iran: record of latest Tournaisian-early Visean tectonic events
title_sort early carboniferous siliciclastic-carbonates in east-central iran versus coeval carbonates of north iran: record of latest tournaisian-early visean tectonic events
publisher Instituto de Fisiografía y Geología. Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario
publishDate 2016
url http://hdl.handle.net/2133/6624
http://hdl.handle.net/2133/6624
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AT vacharddaniel earlycarboniferoussiliciclasticcarbonatesineastcentraliranversuscoevalcarbonatesofnorthiranrecordoflatesttournaisianearlyviseantectonicevents
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