Volume 32, Issue 3 (10-2024)
www.ijcm.ir 2024, 32(3): 425-440 |
Back to browse issues page
Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
Mushtaq S, Siahcheshm K, Hosseinzadeh M R. Geology, petrology and geochemical alteration of Pardad copper deposit, East Shahrood. www.ijcm.ir 2024; 32 (3) :425-440
URL: http://ijcm.ir/article-1-1853-en.html
URL: http://ijcm.ir/article-1-1853-en.html
1- Department of Earth Sciences, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
Abstract: (541 Views)
The Pardad copper deposit lies in the Tertiary volcanic-sedimentary zone of the Abbas Abad-Kahak, south of the Sabzevar ophiolitic belt on the northeastern margin of the Central Iran. It comprises of a widespread Eocene andesite, basalt, rhyolitic tuffs and agglomerate volcanic rocks affected by the intrusion and semi-intrusive bodies (e.g., tonalitic to monzonitic quartz), which altered them to propylitic, sericitic and hematitic alteration zones. The mass balance findings indicate an enrichment of Fe2O3, MgO, CaO and copper, in the propylitic alteration samples which is in agreement with the presence of copper sulfides along with calcite and epidote. In the sericitic zone, the amount of CaO, K2O, Na2O, MgO, MnO, P2O5 and elements of Ba, Sr, Rb, Hf, Ta, W, Cr have decreased, which is the result of chloritization of ferromagnesian minerals and destruction of feldspar. Depletion of HREEs in the propylitic alteration zone can be due to chloride complexes and partial enrichment of LREEs due to surface absorption by minerals such as chlorite, epidote and iron oxides. Meanwhile, the enrichment of LREEs in the sericitic alteration zone is linked to the stabilization of these elements in primary minerals like apatite, sphene, and zircon. The hematite zone exhibits elevated levels of Co, Ni, Cr, V, Ag, and As elements, a phenomenon attributed to the surface absorption of metals on iron oxide mineral surfaces.
References
1. [1] Gifkins C., Herrmann W., Large R., "Altered Volcanic Rocks: A guide to description and interpretation. University of Tasmania", Center for Ore Deposits and Exploration Studies, Hobart (2005) 287.
2. [2] White N.C., Hedenquist J.F., Epitherma Gold Deposits: styles, characteristics, and exploration. SEG Newsletter 23 (1995) 9-13. [DOI:10.5382/SEGnews.1995-23.fea]
3. [3] Michard A., "Rare earth element systematics in hydrothermal fluid", Geochimica et Cosmochimica Acta 53 (1989) 745-750. [DOI:10.1016/0016-7037(89)90017-3]
4. [4] Radfer J., Kohansal R., "1:100000 Geological map of Davarzen" Geological and mineralogical exploration survey of Iran, (2002).
5. [5] Whitney D. L., Evans B. W., "Abbreviations for names of rock-forming minerals" American Mineralogist 95 (2010) 185-187. [DOI:10.2138/am.2010.3371]
6. [6] Robb L., "Introduction to ore forming process". Black Well publishing company. Malden, MA (2005) 375.
7. [7] Kojima S., Trista Aguilera D. Hayashi K. I., "Genetic aspects of the Manto-type copper deposits based on geochemical studies of north Chilean deposits". Resource Geology, 59 (2007) 87-98. [DOI:10.1111/j.1751-3928.2008.00081.x]
8. [8] Shen, P., Pan, H., Lie, Z., Sun, J., Shen, Y., Lia, C., Feng, H., Cao, C., "A Manto - Type Cu deposite in the central Asian Orogenic Belt: The Hongguleleng example (Xingiang, Chaina)". Ore Geology Reviews, 124 (2020) 103656. [DOI:10.1016/j.oregeorev.2020.103656]
9. [9] Gresens R.L., "Composition-volume relationships of metasomatism", Chemical Geology, 2 (1967) 47 - 65. [DOI:10.1016/0009-2541(67)90004-6]
10. [10] Grant J.A., "Isocon Analysis: A Brief Review of the Method and Applications", Physics and Chemistry of the Earth, 30 (2005) 997-1004. [DOI:10.1016/j.pce.2004.11.003]
11. [11] Hedenquist J.W., Arribas A.Jr., GonzalezUrin E., "Exploration for epithermal gold deposits", Reviews in Economic Geology, 13 (2000) 245 - 277. [DOI:10.5382/Rev.13.07]
12. [12] Meyer A., Hemley J.J., "Wall rock alteration in Geochemistry of hydrothermal ore deposits", Economic Geology, (1967) 166 - 235.
13. [13] Fulignati P., Gioncada A., Sbrana A., "Rare Earth Element (REE) behaviour in the alteration facies of the active magmatic- hydrothermal system of volcano (Aeolian Islands, Italy)". Journal of Volcanology and Geothermal Research, 88 (1998) 325 - 342. [DOI:10.1016/S0377-0273(98)00117-6]
14. [14] Guilbert J., Park C.F., "The geology of ore deposites". W. H. Freeman and company Pub. New York, (1997) 985.
15. [15] Gouveia M.A., Purdencio M.I., Figueiredo M.O., Pereira L.C.J., Waerendborgh J.C., Morgado I., Pena T., Lopez A., "Bihaviour of REE and other trace and major elements during weathering of grenitic rocks, Evora, Potrugal". Chemical Geology, 107 (1993) 293 - 298. [DOI:10.1016/0009-2541(93)90194-N]
16. [16] Heald P., Foley N.K., Hayba D.O., "Comparative Anatomy of Volcanic-Hosted Epithermal Deposit: Acid-Sulfate and Adularia-Sericite Type", Economic Geology, 82 (1987) 1-26. [DOI:10.2113/gsecongeo.82.1.1]
17. [17] Pokrovsky O.S., Schott J., Dupre B., "Trace element fractionation and transport in boreal rivers and soil porewaters of permafrost dominated basaltic terrain in Central Siberia", Geochimica et Cosmochimica Acta, 70 (2006) 3239 - 3260. [DOI:10.1016/j.gca.2006.04.008]
18. [18] Salvi S., Williams Jones A.E., "The role of hydrothermal processes in concentrating high field strength elements in the Strange Lake peralkaline omplex, north eastern Canada", Geochim. Cosmochim. Acta, 60 (1996) 1917 - 1932. [DOI:10.1016/0016-7037(96)00071-3]
19. [19] Pirajno F., "Hydrotermal Processes and Mineral Systems", Springer- Pub, (2009) 1250. [DOI:10.1007/978-1-4020-8613-7]
20. [20] Rolland Y., Cox S., Boullier A.M., Pennacchioni G., Mancktelow N., "Rare earth and trace element mobility in mid-crustal shear zones: insights from the Mont Blanc Massif (Western Alps)", Earth Planet Scientific Letters, 214 (2003) 203-219. [DOI:10.1016/S0012-821X(03)00372-8]
21. [21] Otha A., Kawabe I., "REE absorbtion on to Mn dioxide (a-MnO2) and Fe oxyhydroxide: Ce(III) oxidation by a-MnO2", Geochimica et Cosmochimica Acta, 65 (2001) 695 - 703. [DOI:10.1016/S0016-7037(00)00578-0]
22. [22] Rollinson H.R., "Using geochemical data: evaluation, presentation, interpretation", pearson - prentice Hall, London, )1993( 352.
23. [23] Sverjensky D.A., "Europium redox equilibria in aque- ous solutions", Earth and Planetary Science Letters, 67 (1984) 70-78. [DOI:10.1016/0012-821X(84)90039-6]
24. [24] Henderson P., "Rare Earth Element Geochemistry, Department of Mineralogy", British Moseum, London, U. K, (1984) 511.
Send email to the article author
| Rights and permissions | |
 |
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
