Regional systematic exploration in the Marivan-Mahabad zone using geological, geochemical, geophysical, mineral and satellite data
Editor: Alireza Kiani
By: Fariborz Qarib, Alireza Kiani, Mahasa Rustaie, Maryam Dehghani, Hedieh Nazi, Nasrin Amirmotalebi, Payam Sudishoar, Fereshteh Rostami, Alireza Jafarirad, Mana Rahimi, Sheida Eskandari
Technical executive: Ali Mohamadi Joabadi, Simin Mehdizadeh Tehrani
Advisor of the Zone: Bahram Aqaebrahimi Samani
Geological Survey of Iran
Considering the importance of mineral development as a goal of the Third Development Program of Iran, GSI defined 20 exploration zones according the world standards. Marivan-Baneh is one of these 20 zones. In this project with compilation and modeling of geological, geochemical, geophysical, satellite, and mineral data, several potential areas were identified that controlled during filed visit.
The Marivan-Baneh zone includes nine 1:100000 sheets of Miandoab, Mahabad, Naghadeh, Saqez, Alut, Sardasht, Marivan, Baneh and Paveh that are located in the Sanandaj-Sirjan structural zone at west Iran. The zone is bounded between 46 30' to 45 degrees E and 35 to 37 degrees N.
The lithology of the area starts with gneiss, amphibolite, phyllite, and volcanic rocks in the south of the area. Upper Precambrian-Cambrian sedimentary rocks exposed at north of the region. Mesozoic of the region includes phyllite, crystalline limestone, tuff and andesite rocks faulted over the Precambrian metamorphic rocks. Cretaceous exposures are extensive in the area and involve a thick succession of limestone, dolomite, phyllite, shale with volcanic intercalations. At southwest, the colored melange complex is intruded by Cenozoic bodies. Qom formation is the youngest formation in the area that is followed by Quaternary deposits.
Mineralization in the area is related to the opening of Neotethys Ocean (e.g. Zafarabad magnetite), closing of Neotethys Ocean that includes skarn and hydrothermal deposits of cretaceous-Paleogene, metamorphic deposits and magmatic deposits of Neogene.
After processing of five data layers (geology, mineral, geochemistry, geophysics, and satellite imagery), compilation and modeling, 17 favorable mineralized zones were selected to be visited in the field. The report describes each favorable zone separately.