نتایج جستجو برای: ultramafic
تعداد نتایج: 1144 فیلتر نتایج به سال:
Niabad-Qalaje ophiolitic complex is part of Sarvabad ophiolites in Kurdistan that exposed in northwest of Iran and the north of Kermanshah Ophiolites. The complex located in north of Zagros orogeny, consists of lens form, tectonically dismembered ophiolitic sequences located along the main Zagros trust. The ultramafic part includes serpentinized dunite and wherlite, serpentinite and chromitite ...
The Kermanshah ophiolite complex is located in outer Zagros ophiolitic belt and consists of both mantle and crustal suites as remnants of southern branch of the Neo-Tethys Ocean in Iran. Chemical composition determinative diagram of minerals indicates that olivine in dunite, harzburgite and lherzolites has forsteritic composition and in wherlitic rocks is chrysolite in composition likewise orth...
The ore bodies of Galali and Baba-Ali are two relatively important iron ore deposits in west Iran. These ore deposits are situated in the Sanandaj-Sirjan zone. The deposits are associated with ultramafic, calc-alkaline, carbonatite and other rocks. Macroscopic observations, on the boreholes, show that one of the rare ultramafic rocks (hornblendite) appears in all various horizons parallel to m...
: Detailed studies on micro-texture and microprobe analysis of Fe-Ti oxides from Qareaghaj mafic-ultramafic intrusion (QMUI) is the basis of this investigation. The QMUI is mainly composed of non-mineralized mafic and Fe-Ti-P-rich ultramafic rocks (FTP). The FTP with high proportion of ilmenite (~11-19 modal %) and magnetite (~2-13 modal %) show an unusual bulk composition. Fe-Ti oxides are div...
The solubility of Pt in CO-CO2 fluid was studied experimentally at P = 50–200 MPa and T 950 °C. A mixture MgC2O4 MgCO3 used as a source the fluid. Upon reaction capsule walls fluid, carbonyl platinum is formed. use high-temperature quartz ceramics trap avoids effect mechanical contamination with from eroded walls. total content porous traps measured by Electrothermal Atomic Absorption (ET-AAS) ...
This study focuses on the use of petrology as a useful tool in construction applications (i.e., concrete). More specifically, this investigates how petrogenetic characteristics ultramafic rocks derived from ophiolite complexes (Veria–Naousa, Gerania) can act key for prediction final behaviour aggregates concrete aggregates. For reason, their petrographic, chemical and mineralogical were examine...
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