Geochemical exploration and heavy mineral study of Hir area, NE of Qazvin

Hir area, is located in NE of Qazvin and South of Javaherdeh. The results of preliminary regional geochemical explorations have led to the discovery of anomalous areas for a variety of elements. The anomalies were verified by studies on heavy minerals in stream sediments and altered sample taken from surface outcrops. The identified heavy minerals are pyrite, barite, celestine, orpiment, realgar, native copper, zinc, native Lead, galena, rutile, zircon, cinnabar, scheelite and stibnite. The identified heavy metallic minerals are principally affiliated with zones of widespread alterations and dispersed veinlet-type mineralization. Based on mineralogical studies, these alterations are argillic, kaolinitic, limonitic and hematitic. Study on chemical analyses, heavy minerals and altered samples led to identification of 9 anomalous spots. Only one anomalous spot (Zard-Chal) was inferred for further investigation.