Exploration Geophysics Exploration Geophysics Society
Journal of the Australian Society of Exploration Geophysicists
RESEARCH ARTICLE

Regional magnetic lithologies and structures as controls on porphyry copper deposits: evidence from Iran

Hassan Kheyrollahi 1 Firouz Alinia 1 3 Abdolreza Ghods 2
+ Author Affiliations
- Author Affiliations

1 Department of Mining and Metallurgical Engineering, Amirkabir University of Technology, Tehran, 158754413, Iran.

2 Department of Earth Sciences, Institute for Advanced Studies in Basic Sciences, Zanjan, 451951159, Iran.

3 Corresponding author. Email: aliniaf@aut.ac.ir

Exploration Geophysics - https://doi.org/10.1071/EG16042
Submitted: 11 April 2016  Accepted: 3 September 2016   Published online: 28 October 2016

Abstract

Tertiary magmatic activities in Iran are the main magmatic events responsible for porphyry copper deposit occurrences. The Urumieh-Dokhtar magmatic belt (UDMB), the Ahar-Arasbaran, the Taleghan-Tarom, the Kavir-Sabzevar zones, and the Lut Block contain the greatest volume of the Tertiary magmatic rocks in Iran. Many porphyry copper deposit indications have been found, especially in the south-east and north-west of the UDMB in the Kerman and the Ahar-Arasbaran zones, respectively. New porphyry copper mineralisation found in central parts of the UDMB and the East Iran magmatic belt (the Lut Block), in Tertiary rocks, have made these areas more interesting for porphyry copper prospecting, where before that they were not noteworthy. In this paper, we used the combination of upward continuation and edge enhancement filters to find and predict the pattern of distribution of porphyry copper deposits in the Tertiary magmatic belts. The results show the high correlation between magnetic lithologies/structures and porphyry copper deposits at a regional scale and new attractive areas have been proposed for prospecting based on deep geophysical features.

Key words: airborne magnetics, exploration, porphyry copper, Urumieh-Dokhtar magmatic belt.


References

Afshooni, S. Z., Mirnejad, H., Esmaeily, D., and Asadi Harooni, H., 2013, Mineral chemistry of hydrothermal biotite from the Kahang porphyry copper deposit (NE Isfahan), Central Province of Iran: Ore Geology Reviews, 54, 214–232
Mineral chemistry of hydrothermal biotite from the Kahang porphyry copper deposit (NE Isfahan), Central Province of Iran:CrossRef |

Agard, P., Omrani, J., Jolivet, L., and Mouthereau, F., 2005, Convergence history across Zagros (Iran): constraints from collisional and earlier deformation: International Journal of Earth Sciences, 94, 401–419
Convergence history across Zagros (Iran): constraints from collisional and earlier deformation:CrossRef | 1:CAS:528:DC%2BD2MXlslOgt7g%3D&md5=af99e636b3c83628ef15759042a45b7aCAS |

Agard, P., Omrani, J., Jolivet, L., Whitechurch, H., Vrielynck, B., Spakman, W., Monie, P., Meyer, B., and Wortel, R., 2011, Zagros orogeny: a subduction-dominated process: Geological Magazine, 148, 692–725
Zagros orogeny: a subduction-dominated process:CrossRef |

Aghazadeh, M., Hou, Z., Badrzadeh, Z., and Zhou, L., 2015, Temporal–spatial distribution and tectonic setting of porphyry copper deposits in Iran: constraints from zircon U–Pb and molybdenite Re–Os geochronology: Ore Geology Reviews, 70, 385–406
Temporal–spatial distribution and tectonic setting of porphyry copper deposits in Iran: constraints from zircon U–Pb and molybdenite Re–Os geochronology:CrossRef |

Ahmadian, J., Sarjoughian, F., Lentz, D., Esna-Ashari, A., Muratad, M., and Ozawad, H., 2016, Eocene K-rich adakitic rocks in the Central Iran: implications for evaluating its Cu–Au–Mo metallogenic potential: Ore Geology Reviews, 72, 323–342
Eocene K-rich adakitic rocks in the Central Iran: implications for evaluating its Cu–Au–Mo metallogenic potential:CrossRef |

Alavi, M., 1994, Tectonics of the Zagros orogenic belt of Iran: new data and interpretations: Tectonophysics, 229, 211–238
Tectonics of the Zagros orogenic belt of Iran: new data and interpretations:CrossRef |

Almasi, A., Jafarirad, A., Kheyrollahi, H., Rahimi, M., and Afzal, P., 2014, Evaluation of structural and geological factors in orogenic gold type mineralisation in the Kervian area, north-west Iran, using airborne geophysical data: Exploration Geophysics, 45, 261–270
Evaluation of structural and geological factors in orogenic gold type mineralisation in the Kervian area, north-west Iran, using airborne geophysical data:CrossRef | 1:CAS:528:DC%2BC2cXitVChu77P&md5=95583838d7363314bdfceaa93c27de28CAS |

Asadi, S, Moore, F, and Zarasvandi, A, 2014, Discriminating productive and barren porphyry copper deposits in the southeastern part of the central Iranian volcano-plutonic belt, Kerman region, Iran: a review: Earth Science Reviews, 138, 25–46
Discriminating productive and barren porphyry copper deposits in the southeastern part of the central Iranian volcano-plutonic belt, Kerman region, Iran: a review:CrossRef | 1:CAS:528:DC%2BC2cXhsVOnurjL&md5=b5b73825e97e90e137e2ee0c09392495CAS |

Austin, J. R., and Blenkinsop, T. G., 2008, The Cloncurry Lineament: geophysical and geological evidence for a deep crustal structure in the Eastern Succession of the Mount Isa Inlier: Precambrian Research, 163, 50–68
The Cloncurry Lineament: geophysical and geological evidence for a deep crustal structure in the Eastern Succession of the Mount Isa Inlier:CrossRef | 1:CAS:528:DC%2BD1cXlsFCntLc%3D&md5=5f55d47c23c55e68ff78368775463e9bCAS |

Austin, J. R., and Blenkinsop, T. G., 2009, Local to regional scale structural controls on mineralization and the importance of a major lineament in the eastern Mount Isa Inlier, Australia: review and analysis with autocorrelation and weights of evidence: Ore Geology Reviews, 35, 298–316
Local to regional scale structural controls on mineralization and the importance of a major lineament in the eastern Mount Isa Inlier, Australia: review and analysis with autocorrelation and weights of evidence:CrossRef |

Ayati, F., Yavuz, F., Asadi Harooni, H., Richards, J. P., and Jourdan, F., 2013, Petrology and geochemistry of calc-alkaline volcanic and subvolcanic rocks, Dalli porphyry copper–gold deposit, Markazi Province, Iran: International Geology Review, 55, 158–184
Petrology and geochemistry of calc-alkaline volcanic and subvolcanic rocks, Dalli porphyry copper–gold deposit, Markazi Province, Iran:CrossRef |

Azizi, H., Mehrabi, B., and Akbarpour, A., 2009, Genesis of tertiary magnetite–apatite deposits, southeast of Zanjan, Iran: Resource Geology, 59, 330–341
Genesis of tertiary magnetite–apatite deposits, southeast of Zanjan, Iran:CrossRef | 1:CAS:528:DC%2BC3cXpsVGltw%3D%3D&md5=4eb56d0992fe7bb9137539795d6e1d64CAS |

Baranov, V., 1957, A new method for interpretation of aeromagnetic maps: pseudo-gravimetric anomalies: Geophysics, 22, 359–382
A new method for interpretation of aeromagnetic maps: pseudo-gravimetric anomalies:CrossRef |

Bierlein, F. P., Murphy, F. C., Weinberg, R. F., and Lees, T., 2006, Distribution of orogenic gold deposits in relation to fault zones and gravity gradients: targeting tools applied to the Eastern Goldfields, Yilgarn Craton, Western Australia: Mineralium Deposita, 41, 107–126
Distribution of orogenic gold deposits in relation to fault zones and gravity gradients: targeting tools applied to the Eastern Goldfields, Yilgarn Craton, Western Australia:CrossRef | 1:CAS:528:DC%2BD28Xktlymsbg%3D&md5=befd435cf2744fd7bc597bc16efbbd32CAS |

Castro, A., Aghazadeh, M., Badrzadeh, Z., and Chichorro, M., 2013, Late Eocene–Oligocene postcollisional monzonitic intrusions from the Alborz magmatic belt, NW Iran. An example of monzonite magma generation from a metasomatised mantle source: Lithos, 180–181, 109–127
Late Eocene–Oligocene postcollisional monzonitic intrusions from the Alborz magmatic belt, NW Iran. An example of monzonite magma generation from a metasomatised mantle source:CrossRef |

Cloos, M., and Sapiie, B., 2013, Porphyry copper deposits: strike–slip faulting and throttling cupolas: International Geology Review, 55, 43–65
Porphyry copper deposits: strike–slip faulting and throttling cupolas:CrossRef |

Cooper, G. R. J., and Cowan, D. R., 2006, Enhancing potential field data using filters based on the local phase: Computers & Geosciences, 32, 1585–1591
Enhancing potential field data using filters based on the local phase:CrossRef |

Cooper, G. R. J., and Cowan, D. R., 2008, Edge enhancement of potential field data using normalized statistics: Geophysics, 73, H1–H4
Edge enhancement of potential field data using normalized statistics:CrossRef |

Cordell, L., and Grauch, V. J. S., 1985, Mapping basement magnetization zones from aeromagnetic data in the San Juan Basin, New Mexico, in W. J. Hinze, ed., The utility of regional gravity and magnetic anomaly maps: Society of Exploration Geophysicists, 181–197.

Emami, M. H., 2000, Magmatism in Iran: Geological Survey of Iran, Internal Report No. 71, 622 pp [in Persian].

Ferreira, F. S. J., Souza, J. D., Bongiolo, A. B. S., and Castro, L. G., 2013, Enhancement of the total horizontal gradient of magnetic anomalies using the tilt angle: Geophysics, 78, J33–J41
Enhancement of the total horizontal gradient of magnetic anomalies using the tilt angle:CrossRef |

Ghorbani, M. R., Graham, I. T., and Ghaderia, M., 2014, Oligocene–Miocene geodynamic evolution of the central part of Urumieh-Dokhtar Arc of Iran: International Geology Review, 56, 1039–1050
Oligocene–Miocene geodynamic evolution of the central part of Urumieh-Dokhtar Arc of Iran:CrossRef |

Haschke, M., Ahmadian, J., Murata, M., and McDonald, I., 2010, Copper mineralization prevented by arc-root delamination during Alpine–Himalayan collision in Central Iran: Economic Geology and the Bulletin of the Society of Economic Geologists, 105, 855–865
Copper mineralization prevented by arc-root delamination during Alpine–Himalayan collision in Central Iran:CrossRef | 1:CAS:528:DC%2BC3cXpsFeitLo%3D&md5=c071a5c563d9e5b1f38d19fe6644e294CAS |

Henson, P. A., Blewett, R. S., Roy, I. G., Miller, J. McL., and Czarnota, K., 2010, 4D architecture and tectonic evolution of the Laverton region, eastern Yilgarn Craton, Western Australia: Precambrian Research, 183, 338–355
4D architecture and tectonic evolution of the Laverton region, eastern Yilgarn Craton, Western Australia:CrossRef | 1:CAS:528:DC%2BC3cXhsVKjtrnM&md5=84cb838688adcfb40b843e46fdf25730CAS |

Hezarkhani, A., 2006, Petrology of intrusive rocks within the Sungun Porphyry Copper Deposit, Azerbaijan, Iran: Journal of Asian Earth Sciences, 27, 326–340
Petrology of intrusive rocks within the Sungun Porphyry Copper Deposit, Azerbaijan, Iran:CrossRef |

Hezarkhani, A., 2008, Hydrothermal evolution of the Sonajil porphyry copper system, East Azarbaijan Province, Iran: the history of an uneconomic deposit: International Geology Review, 50, 483–501
Hydrothermal evolution of the Sonajil porphyry copper system, East Azarbaijan Province, Iran: the history of an uneconomic deposit:CrossRef |

Hildenbrand, T. G., Berger, B., Jachens, R. C., and Ludington, S., 2000, Regional crustal structures and their relationship to the distribution of ore deposits in the Western United States, based on magnetic and gravity data: Economic Geology and the Bulletin of the Society of Economic Geologists, 95, 1583–1603
| 1:CAS:528:DC%2BD3MXpsFCltg%3D%3D&md5=287e9a31d00c0f8519dc5f851a457d80CAS |

Holden, E. J., Dentith, M., and Kovesi, P., 2008, Towards the automated analysis of regional aeromagnetic data to identify regions prospective for gold deposits: Computers & Geosciences, 34, 1505–1513
Towards the automated analysis of regional aeromagnetic data to identify regions prospective for gold deposits:CrossRef |

Jacobsen, B. H., 1987, A case for upward continuation as a standard separation filter for potential-field maps: Geophysics, 52, 1138–1148
A case for upward continuation as a standard separation filter for potential-field maps:CrossRef |

Jahangiri, A., 2007, Post-collisional Miocene adakitic volcanism in NW Iran: geochemical and geodynamic implications: Journal of Asian Earth Sciences, 30, 433–447
Post-collisional Miocene adakitic volcanism in NW Iran: geochemical and geodynamic implications:CrossRef |

Jamali, H., and Mehrabi, B., 2015, Relationships between arc maturity and Cu-Mo-Au porphyry and related epithermal mineralization at the Cenozoic Arasbaran Magmatic Belt: Ore Geology Reviews, 65, 487–501
Relationships between arc maturity and Cu-Mo-Au porphyry and related epithermal mineralization at the Cenozoic Arasbaran Magmatic Belt:CrossRef |

Jaques, A. L., and Milligan, P. R., 2004, Patterns and controls on the distribution of diamondiferous intrusions in Australia: Lithos, 77, 783–802
Patterns and controls on the distribution of diamondiferous intrusions in Australia:CrossRef | 1:CAS:528:DC%2BD2cXnt1KitLw%3D&md5=ea448cb1ed255ffe027c4b61666a570fCAS |

Karimpour, M. H., Malekzadeh Shafaroudi, A., Mazaheri, S. A., and Heydarian, M. R., 2007, Magmatism and different mineralization of Cu–Au–Sn–W in Lut block: 15th Congress of Iranian Crystallography and Mineralogy Association, 598–604 [in Persian].

Khaleghi, F., Hosseinzadeh, Gh., Rasa, I., and Moayyed, M., 2013, Geological and geochemical characteristics of Siah Kamar porphyry molybdenum deposit, West of Mianeh, NW Iran: Geological Survey of Iran, Scientific Quarterly Journal of Geosciences, 22, 187–196

Li, L., 2013, Improved edge detection tools in the interpretation of potential field data: Exploration Geophysics, 44, 128–132
Improved edge detection tools in the interpretation of potential field data:CrossRef |

Li, L., Huang, D., Han, L., and Ma, G., 2014, Optimised edge detection filters in the interpretation of potential field data: Exploration Geophysics, 45, 171–176
Optimised edge detection filters in the interpretation of potential field data:CrossRef | 1:CAS:528:DC%2BC2cXhvF2itr7L&md5=b702d133c2672e7aa8e3a91a96d997d7CAS |

Ma, G., 2013, Edge detection of potential field data using improved local phase filter: Exploration Geophysics, 44, 36–41
Edge detection of potential field data using improved local phase filter:CrossRef |

Ma, G., and Li, L., 2012, Edge detection in potential fields with the normalized total horizontal derivative: Computers & Geosciences, 41, 83–87
Edge detection in potential fields with the normalized total horizontal derivative:CrossRef |

Maghsoudi, A., Yazdi, M., Mehrpartou, M., Vosoughi, M., and Younesi, S., 2014, Porphyry Cu–Au mineralization in the Mirkuh Ali Mirza magmatic complex, NW Iran: Journal of Asian Earth Sciences, 79, 932–941
Porphyry Cu–Au mineralization in the Mirkuh Ali Mirza magmatic complex, NW Iran:CrossRef |

Malekzadeh Shafaroudi, A., Karimpour, M. H., and Stern, C. R., 2015, The Khopik porphyry copper prospect, Lut Block, Eastern Iran: geology, alteration and mineralization, fluid inclusion, and oxygen isotope studies: Ore Geology Reviews, 65, 522–544
The Khopik porphyry copper prospect, Lut Block, Eastern Iran: geology, alteration and mineralization, fluid inclusion, and oxygen isotope studies:CrossRef |

Miller, H. G., and Singh, V., 1994, Potential field tilt – a new concept for location of potential field sources: Journal of Applied Geophysics, 32, 213–217
Potential field tilt – a new concept for location of potential field sources:CrossRef |

Mohammadi, B., and Ali Akbari, H., 2000, Report on prospecting for porphyry copper and epithermal gold in Hashtjin-Agh Kand district, Ahar-Arasbaran region: Geological Survey of Iran, Internal Report No. 3199 [in Persian].

Nilforoushan, F., Masson, F., Vernant, P., Vigny, C., Martinod, J., Abbassi, M., Nankali, H., Hatzfeld, D., Bayer, R., Tavakoli, F., Ashtiani, A., Doerflinger, E., Diagnières, M., Collard, P., and Chéry, J., 2003, GPS network monitors the Arabia-Eurasia collision deformation in Iran: Journal of Geodesy, 77, 411–422
GPS network monitors the Arabia-Eurasia collision deformation in Iran:CrossRef |

Omrani, J., Agard, P., Whitechurch, H., Benoit, M., Prouteau, G., and Jolivet, L., 2008, Arc-magmatism and subduction history beneath the Zagros Mountains, Iran: a new report of adakites and geodynamic consequences: Lithos, 106, 380–398
Arc-magmatism and subduction history beneath the Zagros Mountains, Iran: a new report of adakites and geodynamic consequences:CrossRef | 1:CAS:528:DC%2BD1cXhtlOmtL%2FO&md5=e5117be994729ffd753ca87f80c341f2CAS |

Pang, K. N., Chung, S. L., Zarrinkoub, M. H., Khatib, M. M., Mohammadi, S. S., Chiu, H. Y., Chu, C. H., Lee, H. Y., and Lo, C. H., 2013, Eocene–Oligocene post-collisional magmatism in the Lut–Sistan region, eastern Iran: magma genesis and tectonic implications: Lithos, 180–181, 234–251
Eocene–Oligocene post-collisional magmatism in the Lut–Sistan region, eastern Iran: magma genesis and tectonic implications:CrossRef |

Ponce, D. A., and Glen, J. M. G., 2002, Relationship of epithermal gold deposits to large-scale fractures in northern Nevada: Economic Geology and the Bulletin of the Society of Economic Geologists, 97, 3–9
Relationship of epithermal gold deposits to large-scale fractures in northern Nevada:CrossRef | 1:CAS:528:DC%2BD38XjslSgur8%3D&md5=d8f28a1ba15d5b511b388962fa429ca2CAS |

Richards, J. P., 2003, Metallogeny of Neo-Tethys arc in central Iran, in D. Eliopoulos, ed., Mineral exploration and sustainable development: Millpress, 1237–1239.

Richards, J. P., 2015, Tectonic, magmatic, and metallogenic evolution of the Tethyan orogen: from subduction to collision: Ore Geology Reviews, 70, 323–345
Tectonic, magmatic, and metallogenic evolution of the Tethyan orogen: from subduction to collision:CrossRef |

Richards, J. P., Spell, T., Rameh, E., Razique, A., and Fletcher, T., 2012, High Sr/Y magmas reflect arc maturity, high magmatic water content, and porphyry Cu ± Mo ± Au potential: examples from the Tethyan arcs of central and eastern Iran and western Pakistan: Economic Geology and the Bulletin of the Society of Economic Geologists, 107, 295–332
High Sr/Y magmas reflect arc maturity, high magmatic water content, and porphyry Cu ± Mo ± Au potential: examples from the Tethyan arcs of central and eastern Iran and western Pakistan:CrossRef | 1:CAS:528:DC%2BC38XivVCgu7o%3D&md5=4dc98c57628d647f7cc3187f421a74a3CAS |

Shafiei, B., Haschke, M., and Shahabpour, J., 2009, Recycling of orogenic arc crust triggers porphyry Cu mineralization in Kerman Cenozoic arc rocks, southeastern Iran: Mineralium Deposita, 44, 265–283
Recycling of orogenic arc crust triggers porphyry Cu mineralization in Kerman Cenozoic arc rocks, southeastern Iran:CrossRef | 1:CAS:528:DC%2BD1MXivVCqtL4%3D&md5=38d6631656876c67264ca4e216a9f2ccCAS |

Verduzco, B., Fairhead, J. D., Green, C. M., and MacKenzie, C., 2004, New insights into magnetic derivatives for structural mapping: The Leading Edge, 23, 116–119
New insights into magnetic derivatives for structural mapping:CrossRef |

Wijns, C., Perez, C., and Kowalczyk, P., 2005, Theta map: edge detection in magnetic data: Geophysics, 70, L39–L43
Theta map: edge detection in magnetic data:CrossRef |

Zarasvandi, A., Liaghat, S., and Zentilli, M., 2005, Geology of the Darreh-Zerreshk and Ali-Abad Porphyry Copper Deposits, Central Iran: International Geology Review, 47, 620–646
Geology of the Darreh-Zerreshk and Ali-Abad Porphyry Copper Deposits, Central Iran:CrossRef |

Zhang, X., Yu, P., Tang, R., Xiang, Y., and Zhao, C. J., 2015, Edge enhancement of potential field data using an enhanced tilt angle: Exploration Geophysics, 46, 276–283
Edge enhancement of potential field data using an enhanced tilt angle:CrossRef |



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