INVESTIGATION OF VOLCANIC ROCKS ORIGIN ACCORDING TO ORE MINING BY USING OPEN SOURCE GEOGRAPHIC INFORMATION SYSTEMS

摘要

The purpose of this study is to investigate the origin of volcanism which surfaced around Afyon and Kuetahya cities and outcropped in the region which has been named as the Phrygian valley in the literature. It is known that, volcanism had occurred during different periods in two different region in the studied area (Suhut and Bayat Regions-Afyonkarahisar). Making research on these volcanic rocks which were formed during these eruptions, finding their similarities and contradictions are important according to the known mineral deposits in this region. Chemical analyzes of volcanic rock samples which were collected from the field trips were done during the study. Major oxides values of each rock samples were obtained. The regional volcanic rocks database has been established by using data and analysis values of each different samples as an attribute. GIS methods were utilized to interpret the results of chemical analysis. QGIS was used as an Open Source GIS software in this study. Primarily, the distribution of major oxides in the studied area were interpreted. Evaluation of the thin section of each rock samples were done under microscope according to the results of distribution of major oxides. At the end, new potential iron, clay and marble occurrences were tried to reveal which are known as famous metallic and nonmetallic mineral deposits for this region.