List of Articles پلیوسن

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  1 - Facies and depositional model in siliciclastic Chelken Formation, South Ghaemshahr City
  هوشنگ  مهرابی عبدالحسین  امینی وحید توکلی مرتضی  فرخی Seyed Mohad Zamanzadeh
  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 Manuscript profile
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  2 - Sedimentary coppers as gemstone: a case study of copper mineralization in the alluvial sediments of the southern plain of Rafsanjan
  H. Zand-Moghadam Amir hossein Tahernia H. Ahmadipour
  The Pliocene-Quaternary sediments of the southern plain of Rafsanjan (west of Kerman province), have a variety of sedimentary copper minerals which can be used as gemstones and suitable for minerals/rocks colledctioners. The most important copper identified minerals inc More

  The Pliocene-Quaternary sediments of the southern plain of Rafsanjan (west of Kerman province), have a variety of sedimentary copper minerals which can be used as gemstones and suitable for minerals/rocks colledctioners. The most important copper identified minerals include malachite, azurite, atacamite and paratacamite. Copper mineralization in this sequence is observed in three forms: cement (in conglomerates), nodules (in sandstones and tuffaceous mudstones), and alternating parallel to cross-laminations with calcite (travertines). The first two groups have only a decorative value, but the third group has the potential for jewelry making and is therefore presented as a gemstone. The leaching of copper from porphyry copper deposits in the upstream area (related to the Dehj-Sardouyeh belt) followed by the enrichment and deposition of copper in the young deposits downstream is considered the most probable model for the copper mineralization in the studied deposits. These deposits are called as exotic copper deposits. Manuscript profile