Delineation of hydrothermal alteration zones for porphyry systems utilizing ASTER data in Jebal-Barez area, SE Iran

Subject Areas : Mineralogy

Sara  Fakhari ¹ (Department of Geology, Science and Research Branch, Islamic Azad University, Tehran, Iran)
Alireza  jafarirad ² (Department of Geology, Science and Research Branch, Islamic Azad University, Tehran, Iran)
Peyman  Afzal ³ (Department of Petroleum and Mining Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran)
Mohammad  Lotfi ⁴ (Department of Geology, North Tehran Branch, Islamic Azad University, Tehran, Iran)

Received: 2017-01-06 Accepted : 2017-08-15 Published : 2019-01-01

Keywords: False colour composite, Band ratio, ASTER, Spectral Angel Mapper (SAM), Jebal-Barez, Alteration,

Abstract :

The Urumieh-Dokhtar Magmatic Belt (UDMB) is the host of many Iranian Cu porphyry deposits. The southern part of this belt, in the Jebal-Barez area, has been less investigated due to the mountainous and rough topography as well as some security confrontations. Porphyry deposits are associated with hydrothermal alteration zones, which can be mapped using the remote sensing data such as Advanced Space borne Thermal Emission and Reflection Radiometer (ASTER). The aim of this study was to identify and detect the alteration zones associated with porphyry systems using ASTER data in Jebal-Barez area, SE Iran. For this reason, seven scenes of ASTER level-1B data which cover the Jebal-Barez area, were pre-processed and then processed by band ratio, false color composite and Spectral Angle Mapper (SAM) methods. The result indicated the presence of extensive phyllic and argillic alteration zones. The argillic alteration is surrounded by border zones of propylitic alteration. Also, a massive granitoid intrusion in NW of the studied area was detected by SAM method and the color composite of 4, 6, and 8 bands of ASTER as a completely altered area (SF area) which strongly needs more detailed exploration and field inspections.

References:

1. Afzal P, Eskandarnejad Tehrani M, Ghaderi M, Hosseini MR (2016) Delineation of supergene enrichment, hypogene and oxidation zones utilizing staged factor analysis and fractal modeling in Takht-e-Gonbad porphyry deposit, SE Iran. Journal of Geochemical Exploration 161: 119-127.


2. Alimohammadi M, Alirezaei S, Kontak DJ (2015) Application of ASTER data for exploration of porphyry copper deposits, A case study of Daraloo–Sarmeshk area, southern part of the Kerman copper belt, Iran, Ore Geology Reviews 70: 290 – 304.


3. Aramesh Asl, R., Afzal, P., Adib, A., Yasrebi, A.B., 2015. Application of multifractal modelling for the identification of alteration zones and major faults based on ETM+ multispectral data. Arabian Journal of Geosciences 8: 2997–3006.


4. Asadi S, Moore F, Zarasvandi A (2014) Discriminating productive and barren porphyrycopper deposits in the southeASTERn part of the central Iranian volcano–plutonic belt, Kerman region, Iran - A review, Earth Sciences 138:25–46.


5. Azizi H, Tarverdi M, Akbarpour A (2010) Extraction of hydrothermal alterations from ASTER SWIR data from east Zanjan, northern Iran, Advances in Space Research 46:99–109.


6. Beiranvandpour A, Hashim M, Marghany M (2011) Using spectral mapping techniques on short wave infrared bands of ASTER remote sensing data for alteration mineralmapping in SE Iran, International Journal of Physical Sciences 6:917–929.


7. Dimitrijevic MD (1973) Geology of Kerman region, Geological Survey of Iran, Report YU/52.


8. Daneshvar Saein, L., Afzal, P., 2017. Correlation between Mo mineralization and faults using geostatistical and fractal modeling in porphyry


9.  


10.  


11. deposits of Kerman Magmatic Belt, SE Iran. Journal of Geochemical Exploration 181: 33-343.


12. Hedenquist JW, Arribas RA, Gonzalez-Urien E (2000) Exploration for epithermal gold deposits. In: Hagemann, S.G. (Ed.), Gold in 2000. Reviews in Economic Geology 13, 245-277.


13. Hezarkhani A (2006) Hydrothermal evolution of the Sar-Cheshmeh porphyry Cu–Mo deposit, Iran, evidence from fluid inclusions, Journal of Asian Earth Sciences 28: 409-422.


14. Holliday JR, Cooke DR (2007)Advances in geological models and exploration methods for copper±gold porphyry deposits, fifth decennial international conference on mineral exploration, Prospectors and Developers Association of Canada, Toronto, 791–809.


15. Honarmand M, Ranjbar H, Shahabpour J (2011) Application of Spectral Analysis in Mapping Hydrothermal Alteration of the Northwestern Part of the Kerman Cenozoic Magmatic Arc, Iran, Journal of Sciences, Islamic Republic of Iran 22: 221–238.


16. Kruse FA, Lefkoff AB, Boardman JB, Heidebrecht KB, Shapiro AT, Barloon PJ, Goetz A.F.H (1993)The Spectral Image Processing System (SIPS) - interactive visualization and analysis of imagingspectrometer data, Remote Sensing of Environment 44: 145–163.


17. Lang JR, Stanley CR, Thompson JFH (1995) Porphyry copper-gold deposits related to alkalic igneous rocks in the Triassic-Jurassic arc terranes of British Columbia: Arizona Geological Society Digest 20:219–236.


18. Lowell JD, Guilbert JM (1970) Lateral and vertical alteration-mineralization zoning in porphyry ore deposits, Economic Geology 65: 373–408.


19. Pazand K, Javanshir AR (2015) Orientation hydrogeochemical survey in Jebal-e-Barez area, SE Iran. Sustainable Water Resources Management 1: 167-180.


20. Mars JC, Rowan LC (2006) Regional mapping of phyllic- and argillicaltered rocks in the Zagros magmatic arc, Iran, using Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data and logical operator algorithms 2:161– 186.


21. Mars JC, Rowan LC (2010) Spectral assessment of new ASTER SWIR surface reflectance data products for spectroscopic mapping of rocks and minerals, Remote Sensing of Environment 114: 2011–2025.


22. Meyer C, Hemley JJ (1967) Wall rock alteration. In: Barnes HL (ed.) Geochemistry of hydrothermal ore deposits. Holt Rinehart and Winston, New York, 166–235.


23. Rowan L, Hook SJ, Abrams MJ, Mars JC (2003) Mapping hydrothermally altered rocks at Cuprite, Nevada, using the Advanced Spaceborne thermal emission and reflection radiometer (ASTER),  a new satellite-imaging system. Economic Geology 98: 1019–1027.


24. Rowan LC, Schmidt RG, Mars JC (2006) Distribution of hydrothermally altered rocks in the Reko Diq, Pakistan mineralized area based on spectral analysis of ASTER data.  Remote Sensing of Environment 104: 74–87.


25. Sabins FF (1999) Remote sensing for mineral exploration, Ore Geology Reviews 14: 157– 183.


26. Shafiei B (2010) Lead isotope signatures of the igneous rocks and porphyry copper deposits from the Kerman Cenozoic magmatic arc (SE Iran), and their agmatic–metallogenetic implications, Ore Geology Reviews 38: 27–36.


27. Shafiei B, Haschke M, Shahabpour J (2009) Recycling of orogenic arc crust triggers porphyry Cu mineralization in Kerman Cenozoic arc rocks, southeASTERn Iran, Mineralium Deposita 44:265–283.


28. Sillitoe RH (2002) some metallogenic features of gold and copper deposits related to alkaline rocks and consequences for exploration.  Mineralium Deposita 37:4–13.


29. Sillitoe RH (2010) Porphyry copper systems. Economic geology 105:3–41.


30. Sillitoe RH, Gappe IM (1984) Philippine porphyry copper deposits: Geologic setting and characteristics: Bangkok, Thailand. United Nations ESCAP, CCOP Technical Publication 14:68- 89.


31. Sojdehee M, Rasa I, Nezafati N, Vosoughi Abedini M (2016) Application of spectral analysis to discriminate hydrothermal alteration zones at Daralu copper deposit, SE Iran, Arabian Journal of Geosciences 9: 41–53.


32. Tangestani MH, Mazhari N, Agar B, Moore F (2008) Evaluating Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data for alteration zone enhancement in a semi-arid area, northern Shahr–e–Babak, SE Iran, International Journal of Remote Sensing 29: 2833–2850.


33. Ting Qiu J, Zhang C, Hu X (2015) Integration of concentration-area fractal modelling and spectral angle mapper for ferric iron alteration mapping and uranium exploration in the Xiemisitan Area, NW China, Remote Sensing 7:13878–13894.


34. Yazdi Z, Jafari-Rad A, Aghazadeh M, Afzal P (2018) Alteration Mapping for Porphyry Copper Exploration Using ASTER and QuickBird Multispectral Images, Sonajeel Prospect, NW Iran. Journal of the Indian Society of Remote Sensing 46 (10): 1581–1593.


35. Zoheir B, Emam A (2012) Integrating geologic and satellite imagery data for highresolution mapping and gold exploration targets in the South EASTERn Desert, Egypt. Journal of African Earth Sciences 66–67.