Volume 30, Issue 2 (5-2022)
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Yadegari, Alavi, Moayyed. Exploratory geochemistry studies of heavy minerals, stream sediments and rock in Asbkhan region, Heris, northwest Iran. www.ijcm.ir 2022; 30 (2) :20-20
URL: http://ijcm.ir/article-1-1747-en.html
URL: http://ijcm.ir/article-1-1747-en.html
Abstract: (1481 Views)
The study area is located in the south of Qushadagh mountain range, in the north of Asbkhan village, Heris township. In terms of structural geology of Iran, this area is located in the main zone of Central Iran and Alborz-Azerbaijan sub-zone. The geological units of the region are including Eocene igneous and pyroclastic rocks with combination of andesitic, trachyandesitic, basaltic, tuffic and ignembritic. The semi-deep intrusive mass with Oligocene age, with the combination of quartz diorite, diorite and quartz monzonite in the form of stock and dyke is exposed in the area. Under the influence of hydrothermal processes originating from this intrusive mass and infiltration of fluids through the sedimentary-volcanic units of the Middle Eocene, extensive alterations (sericitic, medium argillic, propylitic and siliceous) have been taken place in the region. Preliminary results of geochemical studies of stream in the region led to the identification of several areas with grade 1, 2 and 3 anomalies of heavy minerals. The most important heavy minerals identified, include hematite, goethite, magnetite, pyrite-oxide, pyrite and zircon, These minerals and have closely relation to the alteration zones and veins mineralization. The conformity of the geochemical halos map with the geostructure and alteration map of the region shows a very high correlation between these regions and possibly the important role of faults and joints in the occurrence of alteration zones and abnormal regions. Anomaly maps and geostatistical analyzes performed on the findings in stream sediments and heavy minerals show that the enrichment of Ag, Au, Mo, Cu, As, Pb, Sb and Zn elements is higher than the background and the Au, Ag, Cu, As and Pb elements can be used as trace elements for epithermal gold reserves.
References
1. [1] Innocenti F., Mazzuoli R., Pasquare G., Radicati di Brozolo F., Villari L., "Tertiary and quaternary volcanism of the Erzurumkars area (Eastern Turkey): geochronological data and geodynamic evolution", Journal of Volcanology and Geothermal Research, 13 (1982) 223-240. [DOI:10.1016/0377-0273(82)90052-X]
2. [2] Hezarkhani A., "Petrology of the intrusive rocks within the Sungun porphyry copper deposit, Azerbaijan, Iran", Journal of Asian Earth Sciences, 27(3) (2006) 326-340. [DOI:10.1016/j.jseaes.2005.04.005]
3. [3] Dilek Y., Imamverdiyev N., Altunkaynak S., "Geochemistry and tectonics of Cenozoic volcanism in the Lesser Caucasus (Azerbaijan) and the peri-Arabian region: collision-induced mantle dynamics and its magmatic fingerprint", International Geology Review, 52(4-6) (2010), 536-578. [DOI:10.1080/00206810903360422]
4. [4] Dercourt J.E, Zonenshain L.P., Ricou L.E., Kazmin V. G., Le Pichon X., Knipper A.L., Grandjacquet C., Sbortshikov I.M., Geyssant J., Lepvrier C., Pechersky D.H., "Geological evolution of the Tethys belt from the Atlantic to the Pamirs since the Lias", Tectonophysics, 123(1-4): (1986) 241-315. [DOI:10.1016/0040-1951(86)90199-X]
5. [5] Alavi M., "Structures of the Zagros fold-thrust belt in Iran", American Journal of science, 307(9), (2007) 1064-1095. [DOI:10.2475/09.2007.02]
6. [6] Jamali H., Dilek Y., Daliran F., Yaghubpur A., Mehrabi B., "Metallogeny and tectonic evolution of the Cenozoic Ahar-Arasbaran volcanic belt, northern Iran", International Geology Review, 52(4-6) (2010) 608-630. [DOI:10.1080/00206810903416323]
7. [7] Ghorbani M., "A summary of geology of Iran, In The Economic Geology of Iran, Springer", Dordrecht (2013) 45-64. [DOI:10.1007/978-94-007-5625-0_2]
8. [8] Jamali H., Mehrabi B., "Relationships between arc maturity and Cu-MO-Au porphyry and related epithermal mineralization at the Cenozoic Arasbaran magmatic belt", Ore Geology Review 31 (2015) 123-138. [DOI:10.1016/j.oregeorev.2014.06.017]
9. [9] Simmonds V., Calagari A. A., Kyser K., "Fluid inclusion and stable isotope studies of the Kighal porphyry Cu-Mo prospect, East- Azarbaidjan, NW Iran", Arabian Journal of Geosciences 8 (2015) 473-453. [DOI:10.1007/s12517-013-1130-z]
10. [10] Simmonds V., Moazzen M., "Re-Os dating of molybdenites from Oligocene Cu-Mo-Au mineralized veins in the Qarachilar area, Qaradagh batholith (northwest Iran): Implications for understanding Cenozoic mineralization in South Armenia, Nakhchivan, and Iran", International Geology Review 57 (2015) 290-304. [DOI:10.1080/00206814.2014.1003339]
11. [11] Calagari A. A., "Fluid inclusion studies in quartz veinlets in the porphyry copper deposit at Sungun, East-Azarbaidjan, Iran", Journal of Asian Earth Science 23 (2004) 179-189. [DOI:10.1016/S1367-9120(03)00085-3]
12. [12] Mohamadi M., Borna B., "Report of Geology and Drilling in the Masjed Daghi Area (National Iranian Copper Industries Company (NICICO)).
13. [13] Zarnab Company, "Geology and Alteration Studies of the Haftcheshmeh Area (National Iranian Copper Industries Company (NICICO)) (2007).
14. [14] Ebrahimi S., Alirezaei S., Pan Y., "Geological setting, alteration, and fluid inclusion characteristics of Zaglic and Safikhanloo epithermal gold prospects, NW Iran. Geological", Society, London, Special Publications 350(1) (2011) 133-147. [DOI:10.1144/SP350.8]
15. [15] Alirezaei S., Ebrahimi S., Pan Y., "Fluid Inclusion Characteristics of Epithermal Precious Metal Deposits in the Arasbaran Metallogenic Zone, Northwestern Iran", [extended abs.], ACROFI-II, India (2008) 1-4.
16. [16] Hosseinzadeh MR., "Geological, geochemical, fluids involved, mineralization, alteration and genesis of Sonajil porphyry copper deposit - East Harris", PhD thesis, University of Tabriz (2008) 214 p.
17. [17] Moshaghi P. N., "A study entitled Studies on the genesis of arsenic reserves in Valilo area Master's thesis forma", (2001).
18. [18] Bees A. A., Gregorian S. V., "Geochemical exploration method for mineral deposits. Translated by R.T. Schneider Ed. by A. A Levinson", Lilia's Applied Publishing, 924p (1977).
19. [19] Germane Milo Jr., Fletcher W. K., "Dispersion of gold and associated elements in stream sediments under semi arid conditions, northeast Brazil", Journal of Geochemical Exploration (1999). [DOI:10.1016/S0375-6742(99)00053-9]
20. [20] Hale M., Plant J. A., "Handbook of Exploration Geochemistry", Vol. 6, Elsevier science B.V, Amsterdam (1994).
21. [21] Hassani Pak A., Sharafuddin M., "Analysis of exploratory findings, Tehran, Institute of Printing and Publishing", University of Tehran (2001) 987p.
22. [22] Nude P. M., Arhin E., "Overbank sediments as appropriate geochemical sample media in regional stream sediment surveys for gold exploration in the savannah regions of northern Ghana", Journal of Geochemical Exploration, v. 103(1) (2009) p. 50-56. [DOI:10.1016/j.gexplo.2009.06.005]
23. [23] Nabavi M. H., "An Introduction to the Geology of Iran", Geological Survey of Iran Publication (1976) 1-105.
24. [24] Aghanabati A., "Geology of Iran, Ministry of industry and mines, Geological survey of Iran", Tehran, Iran, 582 pp. (2004) (in Persian).
25. [25] Faridi M., Zamani Mehr S., "Geological map of Khoja with a scale of 1: 100000", Geological Survey and Mineral Exploration (2004).
26. [26] Lesquyer L., Rio R., Babakhani A. R., "Description of Ahar rectangular geological map, 1: 250,000", Geological Survey of Iran (1990).
27. [27] Swan A. R. H., Sandilands M., Meccabe P., "Introduction to geological data analysis, Blackwell Science", Cambridge, 446p (1995).
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