Mineral Chemistry and Melt Inclusions Study of Clinopyroxene Phenocrysts and its Application at Petrologic Interpretations and Mineralization: A case study of lamprophyre Dikes in Northwest of Iran

Authors

1 Geoloagy Department, Faculty of Earth Sciences, Shahid Beheshti University, Iran Geoscience Environment Toulouse, Paul-Sabatier University, France

2 Geoloagy Department, Faculty of Earth Sciences, Shahid Beheshti University, Iran

3 Geoloagy Department, Faculty of Science, Zanjan University, Iran

Abstract

There is a close temporal and spatial relationship between calc-alkaline lamprophyres and gold mineralization.  In Calc alkaline lamprophyre dykes in the Salavat mountain, northwest of Iran, silicate melt inclusions recognized as poly phase inclusions in clinopyroxene. They composed of glass, daughter minerals and volatile bubble. Melt inclusions compositionally are similar to those of host-clinopyroxene phenocrysts, which overlap with calc alkaline lamprophyres. Raman spectroscopy studies of shirinkiage bubble in melt inclusions show they are rich in volatile phase such as CO2. Combination of mineral chemistry data and melt inclusions indicate effect of fluids and its main role on metasomatism processes to generate parent magma of lamprophyres in the Salavate Mountain. Application of this study has significant importance to interpret related to upper mantle processes, evolution of alkaline magma and related mineralization.
 

Keywords

References

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