Petrography and Geochemistry of the Early-Middle Devonian sandstones of the Padeha Formation in the North of Kerman, SE Iran. Implications for provenance

his study presents a petrological and geochemical characterization of the Early-Middle Devonian sandstones of the Padeha Formation in SE Central Iran, north of Kerman in order to determine the provenance on the basis of two measured stratigraphic sections. The sandstones are classified as quartzaren...

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Autores principales: Zand-Moghadam, Hamed, Moussavi-Harami, Reza, Mahboubi, Asadollah, Rahimi, Behnam
Formato: article artículo publishedVersion
Lenguaje:Inglés
Publicado: Instituto de Fisiografía y Geología. Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario 2015
Materias:
Petrography
Geochemistry
Provenance
Sandstone
Padeha Formation
Kerman
Acceso en línea:http://hdl.handle.net/2133/4863
http://hdl.handle.net/2133/4863
Aporte de:
Repositorio Hipermedial de la Universidad Nacional de Rosario (UNR) de Universidad Nacional de Rosario
id I15-R121-2133-4863
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 Petrography
Geochemistry
Provenance
Sandstone
Padeha Formation
Kerman
spellingShingle Petrography
Geochemistry
Provenance
Sandstone
Padeha Formation
Kerman
Zand-Moghadam, Hamed
Moussavi-Harami, Reza
Mahboubi, Asadollah
Rahimi, Behnam
Petrography and Geochemistry of the Early-Middle Devonian sandstones of the Padeha Formation in the North of Kerman, SE Iran. Implications for provenance
topic_facet Petrography
Geochemistry
Provenance
Sandstone
Padeha Formation
Kerman
description his study presents a petrological and geochemical characterization of the Early-Middle Devonian sandstones of the Padeha Formation in SE Central Iran, north of Kerman in order to determine the provenance on the basis of two measured stratigraphic sections. The sandstones are classified as quartzarenite and sublitharenite, and subordinately as litharenite based on framework composition. Modal analysis data from 55 samples of the Sarashk and Gazuieh sections revealed that the sandstones contain quartz, a few percent feldspars and lithic fragments (sedimentary and volcanic rocks). Most of the quartz grains are monocrystalline with straight to undulate extinction with a few polycrystalline grains. Petrographic studies indicate that the Padeha Formation sandstones may have been derived from plutonic and other recycled orogen rocks. Chemically, the major oxides of the sandstones from the Sarashk section are depleted with respect to the upper continental crust, except SiO2, which is related to the high maturity (presence of quartz) and the absence of Al-bearing minerals (phyllosilicates). The trace element concentrations (La, Th, Sc and Zr) and La/Sc (5.50-16.57), Th/Sc (1.12-4.14), La/Co (1.97-20.66), and Th/Co (0.72-4.75) of the Sarashk section indicate felsic source rocks for the sandstones. Furthermore, high Zr/Sc (48-368) and Th/U (0.5-6.8) values are typical for recycling. The chondrite-normalized rare earth element (REE) patterns support this interpretation. Light REE enrichment, negative Eu anomaly and flat heavy REE pattern are very similar to the old upper continental crust. Combined petrological-geochemical data and local Devonian palaeogeographical models show that the Padeha Formation sandstones mostly derived from felsic source rocks and mature recycled continental sedimentary rocks in the craton interior of Central Iran and adjacent areas and were deposited on the passive margin along the coastal setting of the Paleo-Tethys Ocean.
format article
artículo
publishedVersion
author Zand-Moghadam, Hamed
Moussavi-Harami, Reza
Mahboubi, Asadollah
Rahimi, Behnam
author_facet Zand-Moghadam, Hamed
Moussavi-Harami, Reza
Mahboubi, Asadollah
Rahimi, Behnam
author_sort Zand-Moghadam, Hamed
title Petrography and Geochemistry of the Early-Middle Devonian sandstones of the Padeha Formation in the North of Kerman, SE Iran. Implications for provenance
title_short Petrography and Geochemistry of the Early-Middle Devonian sandstones of the Padeha Formation in the North of Kerman, SE Iran. Implications for provenance
title_full Petrography and Geochemistry of the Early-Middle Devonian sandstones of the Padeha Formation in the North of Kerman, SE Iran. Implications for provenance
title_fullStr Petrography and Geochemistry of the Early-Middle Devonian sandstones of the Padeha Formation in the North of Kerman, SE Iran. Implications for provenance
title_full_unstemmed Petrography and Geochemistry of the Early-Middle Devonian sandstones of the Padeha Formation in the North of Kerman, SE Iran. Implications for provenance
title_sort petrography and geochemistry of the early-middle devonian sandstones of the padeha formation in the north of kerman, se iran. implications for provenance
publisher Instituto de Fisiografía y Geología. Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario
publishDate 2015
url http://hdl.handle.net/2133/4863
http://hdl.handle.net/2133/4863
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