mineralization and geophysical exploration by ip/rs and ground magnetic survey in ma-i and...

8/2/2019 Mineralization and geophysical exploration by IP/RS and ground magnetic survey in MA-I and surrounding area, Ma

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1Corresponding author: [email protected]

Journal of Economic Geology 2009-2010, No. 1 (Vol. 1)ISSN 2008-7306

Mineralization and geophysical exploration by IP/RS and ground magneticsurvey in MA-I and surrounding area,

Maherabad porphyry Cu-Au prospect area, east of Iran

Malekzadeh Shafaroudi 1, Karimpour, M.H and A., Hidarian Shahri, M.R

Research Center for Ore Deposit of Eastern Iran, Ferdowsi University of Mashhad, Iran

Received: 11/3/2009, in revised form: 14/5/2009

AbstractMaherabad prospect area, which is studied in detail, is the first porphyry Cu-Au mineralization in the east of Iran. Based on relation of mineralization with subvolcanic intrusive bodies mostly monzonitic with porphyrytexture, extent and types of alteration including potassic, sericitic- potassic, quartz- sericite- carbonate-pyrite, quartz- carbonate- pyrite, silicification- propylitic, propylitic, stockwork mineralization, assemblageshypogene mineralization including pyrite, chalcopyrite, bornite and magnetite and high anomalies of Cu andAu, Mineralization is porphyry Cu-Au-type. MA-I area, which is covered by regolith from its surrounding isthe most important section of mineralization in the region because of intensive of quartz-sericite-carbonate-pyrite alteration and very high dense quartz-sulfide veinlets. IP/RS and ground magnetic surveys wereconducted in the MA-I prospect area and its surrounding plain. Drilling on the IP suede section anomalyresulted to the recognition of sulfide mineralization in on extensive area under the regolith. Surface andunderground detailed studies of geology, alteration, mineralization and geochemistry confirm the extension

of covered mineralization to the south and west of the area. Based on the ground magnetic anomaly, thecenter of mineralization system, potassic zone, to the southwest of the area was recognized. Quartz0sericite-carbonate-pyrite alteration zone, which is located around the potassic zone, has very low magnetic response.IP/RS and ground magnetic surveys in a broader area than before are strongly recommended.

Keywords: Porphyry copper, Potassic zone, Sulfide mineralization, Induced polarization, Magnetic survey .


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mineralization and geophysical exploration by ip/rs and ground magnetic survey in ma-i and...

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