| Abstrakt: |
The Surmaq region on the northeas tern margin of the Zagros Orogenic Belt, which was chosen as the research area, includes a significant expansion of fractures and important mines, which seems to be related. Structurally, the Surmaq region is located in the central part of the Sanandaj-Sirjan zone and close to the Main Zagros Thrust. The use of remote sensing techniques, including 1-various false color combinations in order to highlight the lineaments as well as possible and identify the fault patterns and 2-false color combinations along with band ratios in addition to analysis the principle components in order to identify different alteration zones for manganese deposits identifications, provide valuable information about the relation between the alteration zones and the fault patterns. Study of the fault patterns using satellite images as well as their control in field studies showed four general directions. The map of faults density and s tructural nodes were prepared for identifying mineralization. Based on the Fry analysis of structural nodes, the convergence direction was obtained about NE-SW (040-220). Comparing the pattern of fault density, mineralization, and alteration zones with each other helped to identify areas with mineralization grades. In places where extensional faults intersect with other faults, especially longitudinal basement faults, more suitable places have been formed for mineralization and mineral replacement. Mineral indices with high density and richness are mos tly concentrated in the fractured area of the faults and mostly in connection with the Abadeh and Surmaq faults and the junction with the N-S-trending Gashar Fault. [ABSTRACT FROM AUTHOR] |
