Siliciclastic Chelken Formation (Lower and Middle Pliocene) with a siliciclastics nature in Javarom Section (south of the Ghaemshahr city) was studied. This formation comprises three sets of conglomerate, sandstone and mudstone, which are usually arranged in fining upwa More
Siliciclastic Chelken Formation (Lower and Middle Pliocene) with a siliciclastics nature in Javarom Section (south of the Ghaemshahr city) was studied. This formation comprises three sets of conglomerate, sandstone and mudstone, which are usually arranged in fining upwards sequences. According to the nature of fining upward sedimentary sequences, sedimentological characteristics and structural features, it is proposed that Chelken Formation deposited in a fluvial environment. Conglomeratic facies are mainly grain-supported in nature, sandstone facies are represented by quartz arenite and lithic arenite in nature and Mudstone facies are carbonate in nature. The paleo-currents analyses represent a north and northeastward direction
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By stating the fundamental differences between terrestrial and detrital facies, this paper emphasizes on the limitations of provenance studies in terrestrial facies. Considering the presence of coarse-, medium- and fine-grained facies in most of terrestrial sedimentary More
By stating the fundamental differences between terrestrial and detrital facies, this paper emphasizes on the limitations of provenance studies in terrestrial facies. Considering the presence of coarse-, medium- and fine-grained facies in most of terrestrial sedimentary sequences, the differences in textural and mineralogical characteristics, their study methods and possible differences in the provenance of these facies, the basic and necessary steps in studying these facies for determining the sedimentary provenance was investigated. In explaining these steps, some examples from terrestrial formations of Central Iran (Upper Red Formation) and north west of Iran (Zivar Formation) are presented. The role of diagenesis, structural deformation and paleogeography in the provenance study and their importance in this type of studies are explained. Finally, it is discussed how to proof the accuracy of the interpretations for the studied sedimentary sequences.
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