White Geochemistry Chapter 7 : Trace Elements 259 Chapter 7 : Trace Elements in Igneous Processes
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Mineralogy and geochemistry of pegmatitic dykes in the Boroujerd-Nezam Abad zone with respect to trace and rare earth elements mineralization
Boroujerd-Nezam Abad zone widespread along NW-SE trend in part of Sanandaj-Sirjan zone. Borujerd-Nezam zone consists of hornfels, schist, phyllite, migmatite, granite and granodiorite rock types. Metamorphic (hornfels and schist) and igneous (granitoids) rocks are known as host pegmatitic dykes. Quartz, feldspar, muscovite and tourmaline are the most common pegmatite, and mica are as muscovite ...
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The RoudMajan kaolin deposit is located about 35 km northwest of Torbat-e- Heydarieh city, Khorasan Razavi Province, in the Great Kavir Block subzone. Field evidence and laboratories results indicate that this deposit is genetically associated with the alteration of basaltic andesite rocks (Lower Eocene). According to the microscopic evidence and various analytical techniques (XRD, SEM-EDS, FE-...
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Biglar Permo-Triassic bauxite deposit is located in ~15 km northwest of Abgarm, southwest of Ghazvin province, west of central Iran. It consists of 8 stratiform and discontinuous bauxite lenses lying along the contact of Ruteh (Permian) and Elika (Triassic) carbonate formations. Petrographically, the bauxite ores exhibit collomorphic-fluidal, pseudo-breccia, pseudo-porphyritic, panidio-morphic-...
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At the base of Shemshak Formation in the south Azadshahr area, some igneous mafic rocks are discovered recently as olivine gabbro bodies and pegmatoid alkali-diorite dikes. Rock-forming minerals of olivine gabbro includes olivine, clinopyroxene and plagioclase, alkali-diorites are composed of large amphiboles and plagioclase. Major and trace elements characteristics of these rocks indicate the...
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.................................... ............................................................. vi CHAPTER 1. GENERAL INTRODUCTION ...................................................... 1 The History of Elemental Analysis ...................................................................... 1 ICP-MS ...............................................................................................
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تاریخ انتشار 2012