نوع مقاله : پژوهشی
نویسندگان
1 دانشجوی دکتری، گروه زمین شناسی، دانشگاه هرمزگان، بندرعباس، ایران
2 دانشیار، گروه زمین شناسی، دانشگاه هرمزگان، بندرعباس، ایران
3 استادیار، گروه زمین شناسی، دانشکده علوم پایه، دانشگاه پیام نور، تهران، ایران.
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Statistical method for studying crystal size dispersion (CSD), It is a new approach to studying the physical properties and petrology of igneous rocks. Based on petrographic studies, the volcanic rocks of northern Narmashir, A wide range of compositions are basalt, olivine basalt, andesite, basaltic andesite, trachyandesite, dacite, rhyodacite, and rhyolite. The overall texture of volcanic flows is porphyry to glomeroporphyry with an intersertal to microlithic background. The main flow minerals include coarse-grained plagioclase and clinopyroxene along with plagioclase microlites. By processing thin section images and using the scattering method, the three-dimensional shape of plagioclase, pyroxene, and quartz crystals, as well as the growth time and nucleation rate of these crystals, were determined. Based on this, the shape of plagioclase, tabular, pyroxene, and prismatic quartz was determined. the growth time (t) and nucleation time (J) for the crystals were estimated to be 150,50 , 400 years and -5.04×10-11, -8.56×10-9.3, -6.78×10-11mm/s-4 respectively
کلیدواژهها [English]
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