Heavy minerals are the best key for studying minerals and mineralization at Sirjan desert

Subject Areas :

Majid Salajeghe ¹ (استادیار دانشگاه آزاد اسلامی واحد کرمان)

Received: 2016-09-07 Accepted : 2016-09-07 Published : 2011-09-23

Keywords: Mineralization, specific gravity, heavy minerals placers, coloured mélange, hydrocyclone,

Abstract :

Most of Iran is mountainous and unachievable. In fact, by studying plains and heavy minerals in them, we canfind mineralization, mineralogy and petrology of the regions surrounding it, easily. In order to the recognitionriver deposit that they were accounted as an important economical resources. The most important goals of thesestudies are discovering diamond from metamorphic sources, gold from igneous sources in placers and iron,copper and titan in placers and its surroundings altitudes. In addition to desert studies, geology and region maps,there are basic methods in this procedure which are including sampling in proper seasons, samples' preparation,heavy mineral tests with liquids with special gravity (bromoforum), hydro cyclone studies spectrography testsand XRD that matching them with altitudes giving us the best results. Sirjan placers are accounted as the modelsfor this study, since the altitudes of Sirjan including Orumieh Dokhtar eocene volcanic and Sanandadj sirjanmetamorphic rocks in which the coloured mélange with the width of 15 k.m. Since in most samples G, gold, asPts (gram per 1000) was found. The possibility of gold sources in placers and its altitudes was large and byconsidering the existence of rutile and sphene in most samples for exploiting titan from placers, the formalexplorations were essential since most samples contain titan having abundant iron. The existence of sources fromtitan – magnetic in altitudes, also the existence of copper minerals with high carat in samples, though does notconsider the existence of placer sources from iron and copper as an economical, but consider the possibility ofthese sources in the altitudes. Uranium, gold and Hg ,Ti,Zr deposits found at sirjan placers are economical andFe,cu mines are existence in altitudes.