Economic Geology, Petrology and Environmental of Copper Ore Deposits of Chagho in South West Karaj

Autores

  • Alireza Rakhshani Moghadam PhD student in Economic Geology, Department of Geology, Faculty of Basic Sciences, Islamic Azad University, North Tehran Branch, Tehran, Iran http://orcid.org/0000-0003-4906-7954
  • Mohammad Lotfi Associate Professor, Department of Geology, Faculty of Basic Sciences, Islamic Azad University, North Tehran Branch, Tehran, Iran
  • Mohammad Reza Jafari Assistant Professor, Department of Geology, Faculty of Basic Sciences, Islamic Azad University, North Tehran Branch, Tehran, Iran
  • Afshin Ashja Ardalan Assistant Professor, Department of Geology, Faculty of Basic Sciences, Islamic Azad University, North Tehran Branch, Tehran, Iran
  • Majid Pour Moghaddam
  • Abdollah Yazdi Assistant Professor, Department of Geology, Kahnooj Branch, Islamic Azad University, Kahnooj, Iran

Palavras-chave:

Geologia econômica, petrologia, geologia ambiental, depósito de cobre

Resumo

The mineral zone under study is 32 square kilometers located in Chagho village, Akhtarabad village, Malard county, Shahriar city, Tehran province. This area is part of the Urumieh-Dokhtar Volcanic Belt. The age of the studied rocks is related to the Eocene and younger than the Eocene. The downward trend of some oxides of major elements such as MgO, CaO and AL2O3 and the increasing trend of K2O and Na2O over SiO2 from the basaltic rocks to the intermediate-acidic rocks in rocks of the studied area are consistent with the magmatic subduction process. Based on standardized radar charts relative to chondrite of the rocks under study, enrichment of elements (LILE) such as Cs, Rb, Ba and light rare earth elements (LREE) relative to HFS elements (Ti, Nb) and heavy rare earth elements (HREE) (Y, Yb, Lu) is shown. In all of the rocks mentioned above, the element u is enriched relative to the primary mantle. The positive anomaly of this element may indicate contamination of their constituent melts with the upper crust. In all studied rocks, HFS elements such as Ti, Nb show depletion and concave pattern. The depletion of the aforementioned elements to the primary mantle may be attributed to the contamination of the melts with lower and upper crustal or possibly the dependence of the melts constituting these rocks on the geodynamic environments of subduction of Neo-Tethyan. According to the study of fluids involved in the region, the temperature of homogenization with the temperature of formation of copper veins is between 120 and 306 ° C, and the salinity percentage varies from 6.45 to 15.96 wt% of sodium chloride. Accordingly, this ore deposit is classified as mesothermal and is a type of hydrothermal allogenic deposits, the presence of sub-faults and seams and gaps in the host rock as a low-pressure environment has provided a suitable site for vein-type mineralization

Referências

PERSIAN RESOURCES

EGHBALI, M. A., Geological and geochemical studies of knife copper potential (southwest of Karaj), Supervisor: Abdolmajid Yaghoubpour, Teacher Training University of Tehran, M.Sc. Thesis, 2005.

RAHIMIPOUR, Z., Petrogenesis and geochemical studies of Copper Knife mineral area in relation to controls Geological-Structural Dependent (Southwest Karaj - Tehran Province), Supervisor:, Mohammad Lotfi, Islamic Azad University North Tehran Branch, Master's Thesis, 2005.

MARSHALL, D.; ANGELIN, S.; MOMEN, H. Translated by ZARASVANDI, A. Atlas of Ores, Publications Shahid Chamran University of Ahvaz: Ahvaz, 1st. edition, 2012.

THOMPSON, E. B.; THOMPSON, J. F. C. Translated by ZARASVANDI, A. Atlas of Alteration, University Press Shahid Chamran of Ahvaz: Ahvaz, 1st edition, 2007.

SHEIKH AL-ISLAMI, M. R.; JAVADI, H. Encyclopedia of Iran's faults. Rahi Publishing: New Delhi, 2nd edition, 2014.

Authors, MACKENZIE, W., S., DONALDSON, C. H., GILFORD, C., Translated by PURKASB, H. Atlas of rock Ignition in thin microscopic sections. Shahid Chamran University of Ahvaz: Ahvaz, 1390 IS THIS RIGHT? THE ATLAS WAS PUBLISHED IN 1390??.

HASHEMI, T. M.; TAYBI, M. H. Field work with satellite images and aerial photographs. Publications Arian Zamin PLEASE INSERT THE CITY OF PUBLICATION, 1st edition, 2015.

YAGHOUBPOUR, A., Fundamentals of Economic Geology, University Publishing Center PLEASE INSERT THE CITY OF PUBLICATION, 2nd edition, 1994.

LATIN RESOURCES

ABDOLI SERESHGI, H.; GANJI, A.; ASHJA ARDALAN, A.; TORSHIZIAN, H.; TAHERI, J. Detection of metallic prospects using staged factor and fractal analysis in Zouzan region, NE Iran. Iranian Journal of Earth Sciences, 11(4), 2019. p. 256-266.

AHMADI, R.; SHEYKHI, B. Recovery of vanadium from secondary tailing of iron ore by salt roasting-alkaline leaching and solvent extraction processes. Iranian Journal of Earth Sciences, 11(1) 2019. p. 30-37.

AUCOTT, J.W. Workshop5: Geochemical Anomaly Recognition. Journal of Geochemical Exploration, 29, 1987. p. 375-376.

BARATIAN, M.; ARIAN, M. A.; YAZDI, A. Petrology and Petrogenesis of Siah Kooh volcanic rocks in the eastern Alborz. GeoSaberes, v. 11, 2020 p. 349-363. DOI: https://doi.org/10.26895/geosaberes.v11i0.980

BARATIAN, M.; ARIAN, M. A.; YAZDI, A., Petrology and petrogenesis of the Siah Kuh intrusive Massive in the South of Khosh Yeilagh. Amazonia Investiga, 7(7), 2018. p. 616-629.

BAZIN. H. H. Copper Deposits In Iran. Geological Survey of Iran, Report 13, 1969.

BENAVIDES, J.; KYSER, T.K.; CLARK, A. H. The Montverde Iron Oxide – Copper – Gold District, III Region, Chile: The Role of Regionally Derived, Non Magmatic Fluids In Chalcopyrite Mineralization. Economic Geology, V. 102, 2007. p.415-440.

BODNAR, R. J.; LECUMBERRI-SANCHEZ. P.; MONCADA, D.; STEELE–MACINNIS, M., Fluid Inclusions in Hydrothermal ore Deposits. Elsevier Ltd. All rights reserved. Virginia Tech, Blacksburg, VA USA, 2014.

CATHERINE, H.; SKINNER, W. Geology And Health: Closing The Gap. PLEASE INSERT THE EDITHORS AND THE CITY OF EDITHORS, 2003

DAY, C. W.; SLACK, J. F.; AYUSO, R. A. Regional Geologic and Petrologic Frame work fo Iron Apatite Rare Earth Element and Iron Oxide Copper – Gold Deposits of the Mesoproterozoic st: Francois Mauntains Terrane, Southeast Missouri, USA, 2016.

DAYA, A. A. Nonlinear disjunctive kriging for the estimating and modeling of a vein copper deposit. Iranian Journal of Earth Sciences, 11(3), 2019. p. 226-236.

DUPUIS, C.; BEADOIN, G., Discriminant Diagrams for Iron Oxide Trace Element Fingerprinting of Mineral Deposit types. Miner Deposita, 46, 2011. p. 319-335.

FLINT, S. Sedimentary And Digentic Controls on Red-bed ore Genesis: The Middle Tertiary San Bartolo Copper Deposit, Antofagasia Province Chile. Economic Geology, v. 81, 1986. p. 761-778.

GEMMELL, J. B.; SIMMONS, S. F., A Group of Papers Devoted Epithermal Au-Ag Deposits. Economic Geology, 102, 2007. p.783-1009.

GROVES, I.; DAVID, P.; BIERLEIN, F.; MEINERT, L. D.; HITZMAN, M. W. Iron Oxide Copper Gold (IOCG) Deposits Through Earth History: Implications for Other Epigenetic Iron Oxide Depostits. Society of Economic Geologists, Inc. Economic Geology, v. 105, 2010. p. 641-654.

KARIMPOUR, M. H. Comparison of Qaleh zari Cu-Au-Ag Deposit With Other Iron Oxides Cu-Au (IOGC-type) Deposits And a New Classification. Society of Crystallography and Mineralogy, Vol. 13, n. 1, 2005.

KOIB, J.; STENSGAARD, B. M. IOCG: Iron Oxide Copper – Gold Mineralising Systems In Green Land. Geology And Ore, n. 13. 2009

NAZEMI, E.; ARIAN, M. A.; JAFARIAN, A.; POURKERMANI, M.; YAZDI, A., Studying The Genesis Of Igneous Rocks In Zarin-Kamar Region (Shahrood, Northeastern Iran) By Rare Earth Elements. Revista Gênero e Direito, 8(4), 2019. p. 446-466. DOI: https://doi.org/10.22478/ufpb.2179-7137.2019v8n4.48442

NOVRUZOV, N.; VALIYEV, A.; BAYRAMOV, A.; MAMMADOV, S.; IBRAHIMOV, J.; EBDULREHIMLI, A. Mineral composition and paragenesis of altered and mineralized zones in the Gadir low sulfidation epithermal deposit (Lesser Caucasus, Azerbaijan), Iranian Journal of Earth Sciences, 11(1), 2019 p. 14-29.

PIRAJNO, F. Hydrothermal Processes Mineral Systems. Geological Survey of Western Australia, WA, Australia, 2009.

POLLARD, P. J.; PERKINS, K. L.; WILLIAMS, P. J. SKIRROW, R. G., Chapter 6: Geochemical & Isotopic Composition of FE-Oxide Cu-Au Mineralisation, IOCG. Mineralistion Book. PLEASE INSERT THE EDITHORS AND THE CITY OF EDITHORS, 2000

ROEDDER, E. Fluid Inclusion Mineralogical Society of America. Review In Mineralogy, 12 (646), 1984.

SHEPHERD, PLEASE INSERT DE INICAL LETTER OF THE AUTHOR; RANKIN, A. H.; ALDERTON, D. H. M. A practical Guide to Fluid Inclusion Studies. Blackie: Glasgow, 1985.

YAZDI, A.; ASHJA-ARDALAN, A.; EMAMI, M. H.; DABIRI, R.; FOUDAZI, M. Chemistry of Minerals and Geothermobarometry of Volcanic Rocks in the Region Located in Southeast of Bam, Kerman Province. Open Journal of Geology, 7, 2017 p. 1644-1653. DOI: 10.4236/ojg.2017.711110

YAZDI, A.; ASHJA-ARDALAN, A.; EMAMI, M. H.; DABIRI, R.; FOUDAZI, M., Magmatic interactions as recorded in plagioclase phenocrysts of quaternary volcanics in SE Bam (SE Iran). Iranian Journal of Earth Sciences, 11(3), 2019. p. 215-224.

ZADMEHR, F., SHAHROKHI, S. V., Separation of geochemical anomalies by concentration-area and concentration-number methods in the Saqez 1:100,000 sheet, Kurdistan. Iranian Journal of Earth Sciences, 11(3), 2019. p. 196-204.

Downloads

Publicado

2021-06-25

Como Citar

Moghadam , A. R. ., Lotfi, M., Jafari, M. R. ., Ardalan , A. A., Pour Moghaddam, M., & Yazdi , A. (2021). Economic Geology, Petrology and Environmental of Copper Ore Deposits of Chagho in South West Karaj. Revista Geoaraguaia, 11(1), 7-26. Recuperado de https://periodicoscientificos.ufmt.br/ojs/index.php/geo/article/view/12475

Edição

Seção

Artigos