Mineral chemistry and thermobarometry of gabbroic rocks from the Pargeh area (NE Qazvin): A key for understanding the crystallization conditions

Document Type : Original Article

Authors

1 Department of Geology, Faculty of Sciences, Lorestan University, Khorramabad, Iran

2 کیلومتر 5 جاده خرم آباد-تهران سازمان مرکزی دانشگاه لرستان کد بستی17133 -68137

3 Queen’s Facility for Isotope Research, Department of Geological Sciences and Geological Engineering, Queen’s University, Kingston, Ontario, Canada K7L 3N6

4 3 Rio de Janeiro State University (UERJ), Geology Faculty, Departamento de Mineralogia e Petrologia Ígnea (DMPI), Brazil

5 دانشگاه لرستان، دانشکده علوم پایه، گروه زمین شناسی

Abstract

Introduction

Mineral chemistry data as well as petrography provide a comprehensive picture of magma crystallization conditions that support the conclusions based on geochemical data. In addition, the chemical composition of minerals such as clinopyroxene, olivine, biotite, feldspar, and Fe-Ti oxides reflect physicochemical parameters (pressure, temperature, and oxygen fugacity), crystal growth history, and melt origin. The pressure, temperature and oxygen fugacity parameters are estimated from chemical data of various rock-forming minerals to provide information about the crystallization of magmas. In this research, our study the mineral chemistry data of the Pargeh area olivine gabbro and monzogabbro rocks in order to determine the physicochemical conditions (temperature and pressure), determine the tectonic environment and provide a general crystallization and emplacement model of the Pargeh mafic magmas.

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Articles in Press, Accepted Manuscript
Available Online from 07 August 2023
  • Receive Date: 04 June 2023
  • Revise Date: 20 July 2023
  • Accept Date: 07 August 2023