Document Type : Original Research Paper
Authors
- Kourosh Shabani 1
- Nima Nezafati 1
- Morteza Momenzadeh 2
- Mohammad Hashem Emami 3
- Seyed Jamal Shaykhzakaryaii 4
1 Department of Geology, Faculty of Convergent Sciences and Technologies, Islamic Azad University, Science and Research Branch, Tehran, Iran
2 Zarneh Ektashaf Research Group, Tehran, Iran
3 Department of Geology, Faculty of Basic Sciences, Islamshahr Branch, Islamic Azad University, Islamshahr, Iran
4 Department of Geology, Faculty of Basic Sciences, Islamic Azad University, Science and Research Branch, Tehran, Iran
Abstract
The Tareek Darreh gold Gold & Copper deposit is located 40km north of Torbat- e Jam in the Khorasan-Razavi province,NE-Iran. The study area is mainly comprised of slightly metamorphosed, sedimentary rocks of Jurassic age including alternation of shale, siltstone, and sandstone. These rocks have been intruded by plutonic rocks such as gabbronorite, diorite, quartz-diorite, and rhyodacite. The ore bodies are exposed by trenching and pitting. The alteration minerals quartz, chlorite, albite, and sericite which are observed mostly on the top or margin of the stocks. Alteration is more intensive at the contacts of the stocks where vein type mineralization has occurred. The veins are mainly composed of silica type and calcite type, arsenopyrite, chalcopyrite, and pyrite main ore minerals. Probably more than 2-stages telescopic mineralization occurred in these zones and the conditions of temperature and pressure, as seen below. Appears to be a continuation of tectonic activity in the same place as intrusive and a little later the main cause of this phenomenon. According to our studies, The Tareek Darreh gold deposit is considered to be similar to the "intrusion-related gold "type.
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