1977 Volume 27 Issue 143 Pages 171-179
The Qaleh-Zari Mine is located in the central part of east Iran. It started to produce copper concentrate of 18, 000 tons/year in 1975. The geology of the mine area is composed of Jurassic shale and sandstone, and later volcanic rocks. There is a N-S trending anticline plunging into south. Eruptions of andesite, basalt and lapilli tuff are observed along the anticline. This area is seemed as the center of the mineralization. Copperquartz veins were formed in some fissures which might have been caused by compressional force at two periods.
The direction of flows of ore-forming solution in each vein may suggest ore shoots. Four patterns of the vein system can be seen as follows.
1) No. 1 vein, No. 2 vein (southeast direction) and No. 3 vein make a kind of multiple cymoid loops.
2) Gashes en echelon in the small vein.
3) Echelon vein pattern in the No. 2 vein.
4) Ore-forming solution was enriched in the fissures of which the strike and dip was slightly changed. These features may suggest important keys to promote exploration works of this mine effectively.
