SED Solid Earth Discussions SED Solid Earth Discuss. 1869-9537 Göttingen, Germany 10.5194/sed-6-1765-2014 Recognition of a porphyry system using ASTER data in Bideghan – Qom province (central of Iran) Feizi F. 1 Mansouri E. 2 Department of Mining Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran Young Researchers and Elite Club, South Tehran Branch, Islamic Azad University, Tehran, Iran 18 07 2014 6 2 1765 1798 Copyright: © 2014 F. Feizi 2014 This work is licensed under the Creative Commons Attribution 3.0 Unported License. To view a copy of this licence, visit https://creativecommons.org/licenses/by/3.0/ This article is available from https://se.copernicus.org/preprints/6/1765/2014/sed-6-1765-2014.html The full text article is available as a PDF file from https://se.copernicus.org/preprints/6/1765/2014/sed-6-1765-2014.pdf

The Bideghan area is located south of the Qom province (central of Iran). The most impressive geological features in the studied area are the Eocene sequences which are intruded by volcanic rocks with basic compositions. Advanced Space borne Thermal Emission and Reflection Radiometer (ASTER) image processing have been used for hydrothermal alteration mapping and lineaments identification in the investigated area. In this research false color composite, band ratio, Principal Component Analysis (PCA), Least Square Fit (LS-Fit) and Spectral Angel Mapping (SAM) techniques were applied on ASTER data and argillic, phyllic, Iron oxide and propylitic alteration zones were separated. Lineaments were identified by aid of false color composite, high pass filters and hill-shade DEM techniques. The results of this study demonstrate the usefulness of remote sensing method and ASTER multi-spectral data for alteration and lineament mapping. Finally, the results were confirmed by field investigation.

 References Aghanabati, A.: Geology of Iran, Geological survey of Iran, 622 pp., 2004. Albanese, R.: Overcoming resistance to stability: a time to move; a time to pause, Archives Des Sciences Journal, 64, 2011. Asadi Haroni, H. and Lavafan, A.: Integrated Analysis of ASTER and Landsat ETM Data to Map Exploration Targets in the Muteh Gold – Mining Area, IRAN, 5th International Symposium on Spatial Data Quality, Enscheda, and the Netherlands, 2007. Azizi, H., Tarverdi, M. A., and Akbarpour, A.: Extraction of hydrothermal alterations from ASTER SWIR data from east Zanjan, northern Iran, Adv. Space Res., 46, 99–109, 2010. Beiranvnd Pour, A., Hashim ,M., and Marghany, M.: Using spectral mapping techniques on short wave infrared bands of ASTER remote sensing data for alteration mineral mapping in SE Iran, Int. J. Phys. Sci., 6, 917–929, 2011. Bell, E. C.: Practical long-range planning: case histories show how it's actually done, Archives Des Sciences Journal, 64, 2011. Boardman, J. W., Kruse, F. A., and Green, R. O.: Mapping target signatures via partial unmixing of AVIRIS data, Summaries, in: Proceedings of the Fifth JPL Airborne Earth Science Workshop, Pasadena, California, JPL Publ., 95-1, 1, 23–26, 1995. Green, A. A., Berman, M., Switzer, P., and Craig, M. D.: A transformation for ordering multispectral data in terms of image quality with implications for noise removal, IEEE T. Geosci. Remote, 26, 65–74, 1998. Kruse, F. A., Boardman, J. W., Lefkoff, A. B., Heidebrecht, K. B., Shapiro, A. T., Barloon P. J., and Goetz, A. F. H.: The Spectral Image Processing System (SIPS) – interactive visualization and analysis of imaging spectrometer data, Remote Sens. Environ., 44, 145–163, 1993. Kujjo, C. P.: Application of remote sensing for gold exploration in the Nuba Montains, Sudan, M.S. thesis, Bowling Green State University, 2010. Lowell, J. D. and Guilbert, J. M.: Lateral and vertical alteration mineralization zoning in porphyry ore deposits, Econ. Geol., 65, 373–408, 1997. Malekzadeh, A., Karimpour, M. H., Stern, C. R., and Mazaheri, S. A.: Hydrothermal alteration mapping in SW Birjand, Iran, using the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) image processing, J. Appl. Sci., 9, 829–842, 2009. Papadaki, S. E., Mertikas, S. P., and Sarris, A.: Identification of Lineaments with Possible Structural origin Using ASTER Images and DEM Derive Products in Western Crete, GREECE, European Association of Remote Sensing Laboratories (ARSeL), 2011. Sabins, F. F.: Remote sensing for mineral exploration, Ore Geol. Rev., 14, 157–183, 1999. Sarp, G.: Lineament Analysis from Satellite Images, North-West of Ankara, M.S. Dissertation, School of Natural and Applied Science of Middle East Technical University, 2005. Watanabe, H. and Matsuo, K.: Rock type classification by multi-band TIR of ASTER, Geosci. J., 7, 347–358, 2003. Weldemariam, A. F.: Mapping Hydrothermally Altered Rocks and Lineament Analysis Through Digital Enhancement of ASTER Data Case Study: Kemashi area, Western Ethiopia, M.S. Dissertation, Addis Ababa University, 2009. Yetkin, E., Toprak, V., and Suezen, M. L.: Alteration Mapping by Remote Sensing: Application to Hasandağ–Melendiz Volcanic, Complex, Geo-Imagery Bridging Continents XXth ISPRS Congress, Istanbul, 2004.