Facies analysis and paleoenvironmental reconstruction of Upper Cretaceous sequences in the eastern Para-Tethys Basin, NW Iran
Omidvar, M. (University of Isfahan (Isfahan, Iran). Department of Geology)
Safari, A. (University of Isfahan (Isfahan, Iran). Department of Geology)
Vaziri-Moghaddam, H. (University of Isfahan (Isfahan, Iran). Department of Geology)
Ghalavand, H. (National Iranian Oil Company)

Fecha:	2014
Resumen:	Upper Cretaceous mixed carbonate-siliciclastic sequences are among the most important targets for hydrocarbon exploration in the Moghan area, located in the eastern Para-Tethys Basin. Despite of their significance, little is known about their facies characteristics and depositional environments. Detailed facies analysis and paleoenvironmental reconstruction of these sequences have been carried out in eight surface sections. Accordingly, four siliciclastic facies, eight carbonate facies and one volcanic facies have been recognized. Detailed facies descriptions and interpretations, together with the results of facies frequency analysis, standard facies models and Upper Cretaceous depositional models of Para-Tethys Basin, have been integrated and a non-rimmed carbonate platform is presented. This platform was affected by siliciclastic influx, in the form of coastal fan delta and submarine fans in the shallow- to deep-marine parts, respectively. This model is interpreted to be shallower in the central and northeastern parts of the Moghan area. Toward the southeast and southwest, this shallow platform turns into deep marine settings along steep slopes without remarkable marginal barriers.
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Lengua:	Anglès
Documento:	Article ; recerca ; Versió publicada
Materia:	Sedimentary facies ; Depositional model ; Upper cretaceous ; Moghan ; Nw iran
Publicado en:	Geologica acta, Vol. 14 Núm. 4 (december 2016) , p. 363-384 (Articles) , ISSN 1696-5728

Adreça alternativa: https://raco.cat/index.php/GeologicaActa/article/view/316047
DOI: 10.1344/GeologicaActa2016.14.4.3

22 p, 8.9 MB

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