TY - JOUR JF - ijcmir JO - www.ijcm.ir VL - 29 IS - 4 PY - 2021 Y1 - 2021/12/01 TI - Evolution of recorded microstructures in minerals during cooling of Zarrin intrusion, evidence for dynamic deformation TT - تکامل ریزساختاری کانی‌ها طی سردشدن توده نفوذی زرین، شاهدی بر دگرشکلی پویا N2 - The Zarrin granitoids is located in the west of Yazd block, Central Iran. Zarrin granitoids exhibit mylonitic rocks ranging from protomylonitic to mylontic. In Zarrin granitoids examples of sub-magmatic, microstructures are represented by chessboard patterns in quartz and sub-magmatic fractures in plagioclase, indicating deformation at high-temperature conditions (T > 650º C) and the presence of melt. Some microstructures such as feldspar bulging, quartz grain boundary migration, and subgrain rotation recrystallization imply solid state-high temperature deformation (T > 450º C). Solid state-low temperature deformation microstructures (T < 450º C) include mica kinks, quartz bulging, feldspar twinning and bending. Sequence of microstructures from sub-magmatic to low-temperature solid-state deformation revealed shear-related deformation at developed during cooling of granitoids at different times and depths. Further, it shows overprinting of low temperature microstructures on earlier sub-magmatic and HT sub-solidus microstructure indictes. Zarrin granitoids recording deformation in the presence of a residual melt during crystallization by submagmatic microstructures and the full crystallization and cooling of the magmatic body by low temperature microstructures. SP - 791 EP - 800 AU - Askari, AU - Zarei Sahamieh, AU - Omrani, AU - Emami, AU - Fiannacca, AD - KW - Granite KW - deformation microstructures KW - Yazd block KW - Central Iran. UR - http://ijcm.ir/article-1-1680-en.html DO - 10.52547/ijcm.29.4.791 ER -