Writers : Samani,.Bahram , Ashtari.Shadi
Refference : Geosciences Scientific Quarterly Journal,No.:5,P.:26

Abstract :
The Sistan-Baluchestan province in South eastern Iran is an important domain of Neotethys which ii characterized by Neotethys evolution, and development of Indian Ocean. This area could be Subdivided into different provinces on the basis of geological and metallogenic peculiarities. The oceanic complexes are developed in Makran Belt, and transform- fault zone of Sistan. According to the air borne magnetic data, what has been called collision- type Zaheclan granites, are pre- Alpine continental fragments, that have been tranaected and displaced by Sistan transform faults.
Subduction of Neotethys under Cimmerian continental crust, and consumption of oceanic crust caused development of continental margin arc volcano-plutonism,and porphyry type Cu mineralization, extended from Kerman to Taitan area (Iran- Pakistan Border). this belt was superimposed by Quaternary Trench-arc collision-type volcanism of Bazman-Taftan belt. Tectono-magmatic reactivation along north-south directed transform foults caused alkaline to Sub-alkaline magmatlsm and related porphyry- type Cu-Au (Pb, Zn, Ag) ate formation.
From metallogenic aspects, the region could be considered as one of the most important ore provinces in Iran. Different metallogenic zones hosted metallic and non-meallic ores are identified in this province. The main criteria for recognition of ore zones were types of crustal basements, geodynamic position and types of magmatism, superimposition and spatial distribution of metallogenic events, as well as exposure levels of geological terranes. The main ore zones are:
1-Mineralization of lithophile elements related to granitoid complexes of Bazman, and Shahkuh continental crust domains, and associated contact metamorphosed andalusite, and garnet bearing units, as welt as ornamental stones of carbonatic, and granitic types.
2-Metallogertic zones of oceanic crust-type on the forms of chromitite, Mn-ore, asbestos, talc and magnesite in ultramaphic complexes, and island arc-type volcanic piles.
3-CaIc-alkaline Volcano-plutonic continental arc magmatic belt, hosted porphyry Copper associated by Pb, Zn, Mo, Ag Sb, and Au mineralization, extended from Sarcheshmeh copper zone to Taftan and Choghaii in Pakistan. This belt was developed by subduction and consumption of Neotethys oceanic crust.
4-Late Tertiary Subalkaline to alkaline porphyries of Sistan transform fault zone with Cu, Pb, Zn, Au, and age ore forming. These magrnatic bodies are formed after mantle doming, whithin continental extension zones.
5- Mineralization related to the Quaternary-Recent volcanism of Bazman and Taftan volcanoes, on the forms of native Sulphur, and thermal spring sediments.
6-Placer-type concentration of heavy minerals along the coastal zone of southern Makran, and beach sands.
Subject List : Metallogenitic evolution