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Copper extraction from hydrothermal polymetallic ore sources in Meymand cave dwelling village, Iran; An archaeometallurgical approach
| Content Provider | Semantic Scholar |
|---|---|
| Author | Emami, Mohammadamin |
| Copyright Year | 2013 |
| Abstract | The polymetallic ore intrusion of “Meymand” is situated between three important copper and iron orogeny zones called “Sarcheshmeh”, “Meydook” and “Gol-e Gohar” in the Kerman province, central Iran. The occurrences of polymetallic sulphide intrusions (Cu, Cu+Fe+As, Cu+Au+Fe, Cu+Zn) with various metallic ore compositions are also one of the reasons why this region belongs to the most signi cant areas for the beginning of metallurgy on the Iranian plateau. The main motivation for this research is the characterization of the smelting slags used for metallurgical purposes in Meymand, based on quantitative XRD methods, including the Rietveld phases refining method. Through polarization microscopy, the interpretation of the paragenesis of the phases in the solid is possible, as well as in the fluid state. Atomic force microscopy in non-contact mode was used in order to obtain some information on the topography and roughness of slag matrices during the smelting process, according to the recrystallization segregation. With respect to the mineralogical phase, segregation silicates mainly consist of augite, fayalite, and clinoferrosilite. The main oxides are hematite and magnetite. Metallic phases are known as copper and iron (wustite). According to the thermodynamic stability field of minerals in the pyroxen bearing slag, copper extraction was carried out at approximately 890°C. Extraccion de cobre de yacimientos hidrotermales polimetalicos de la caverna de Maymand, Iran; un enfoque arqueo-metalurgico Resumen La intrusion de minerales polimetalico de cobre y hierro en “Meymand”, se situa entre tres importante zonas orogenicas llamadas “Sarcheshmeh”, “Meydook” y “Gol-e Gohar”, en la provincia de Kerman, en el centro de Iran. Las ocurrencias de las intrusiones de sulfuro polimetalico (Cu, Cu + Fe + As, Cu + Au + Fe, Cu + Zn) con diversos minerales metalicos son tambien una de las razones por las que esta region pertenece a las areas mas significativas para el comienzo de la metalurgia en la meseta irani. La principal motivacion de esta investigacion es la caracterizacion de las escorias de fundicion utilizadas para fines metalurgicos en Meymand, basado en metodos de DRX cuantitativos, incluyendo el metodo de refinado de fases de Rietveld. Mediante microscopia de polarizacion, es posible la interpretacion de la paragenesis de las fases en el solido, asi tambien en el estado fluido. Se utilizo la microscopia de rayos atomicos en modo sin contacto, para obtener informacion sobre la topografia y rugosidad de las matrices de escoria durante el proceso de fundicion, segun la recristalizacion de la segregacion. Con respecto a la fase mineralogica, los silicatos de segregacion presentes consisten principalmente en augita, fayalita y clino-ferrosilita. Los principales oxidos son la hematita y la magnetita. Las fases metalicas se conocen como cobre y hierro (wustite). De acuerdo con el campo de estabilidad termodinamico de los minerales de piroxeno en la escoria, la extraccion de cobre fue llevada a cabo a aproximadamente a 890 °C. |
| Starting Page | 159 |
| Ending Page | 172 |
| Page Count | 14 |
| File Format | PDF HTM / HTML |
| Volume Number | 38 |
| Alternate Webpage(s) | https://revistas.unal.edu.co/index.php/geocol/article/download/42553/pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
