Writers : Ghaderi,majid;Rastad,Ebrahim;Farimani,Akbar
Refference : The 20th Symposium on Geoscience;Tehran
Publishing Year : 1380

Abstract :
Chelpo_Kalate Choubak Sb_As deposit is located ! km
north of Kashmar (Khorasan Province), northeast Iran. The area is a part of central Iran structural zone. Paleogene gray-red marls and interbeds of tuff, sandstone and
conglomerate comprise the main part of lithological sequence in the area. Paleogene units are intruded by monzonitic and micro-granitic plutons.
The deposit consists of veins and veinlets. The host rock to mineralization is Paleogene unit consisting of marl, tuff, sandstone conglomerate and micro-granite. The mineralization is controlled by faults and fractures. Argillic, pyritic and small amounts of silicic alterations accompany the mineralization. The mineralogy in the veins is simple and includes stibnite, stibiconite, kermesite, realgar. orpiment, pyrite, iron-hydroxide, calcite, gypsum and a small amount of quartz. On the basis of evidences such as geometry. texture and structure, alteration, mineralogy and paragenesis. Chelpo-Kalateh Choubak can be regarded as an epithermal deposit.
Subject List : Arsenic, Antimony