Metallogeny and Mineralization Potential of the Bazman Granitoids, SE Iran

Abstract

The Mesozoic Bazman granitoids are located in Sistan and Baluchestan province, southeastern Iran. Geology of the study area consists of Carboniferous shale, sandstone, and limestone and Permian siltstone, shale, sandstone, limestone, and dolomite that were intruded by the Bazman granitoids. These granitoids include various phases of granite, granodiorite, quartz-monzodiorite, monzodiorite, diorite, and gabbro. They are metaluminous to slightly peraluminous, reduced, calc-alkaline and I-type, and display geochemical characteristics of continental margin (ensialic) granitoids. In this paper, field, petrography, and geochemical data were used to discriminate the Bazman granitoids either as productive or barren granitoids. Although there are a few skarn-related mineral occurrences adjacent to the Bazman granitoids, most exposed intrusions are not hydrothermally altered and mineralized. Rb/Sr, Zr/Hf, and K/Rb ratios indicate that the granitic magmas that formed most of the Bazman granitoids indicate that they are moderately evolved and have generally not undergone post-magmatic hydrothermal activity. The Sm/Eu and Rb/Ba ratios and the concentrations of Rb, Ba, and Sr within the aforementioned granitoids show that the rocks are similar to the averages of granitoids devoid of Li, Be, U, Sn, W, and Ta deposits. The I-type arc characteristics and other geochemical features of the Bazman granitoids show that they are not typical of parental magmas to Sn, W, Mo, and Zn mineralization, but are mainly fertile for Cu and Fe (Au) skarn-related granitoids.

Integrating geospatial data and multi-criteria analysis for mapping and evaluating the mineralization potential in the Dschang pluton (Western Cameroon)

“…In this study, geochemical data (major, trace, and rare earth elements) obtained from Kwékam et al (2020) were modelled in discrimination diagrams to determine the productivity of the samples in certain strategic metals, as usually recommended in granitoid metallogeny (Budd et al 2001;Wyborn 2002;Dhana 2008;Ghodsi et al 2016).…”

“…Using a GIS-based method, such as fuzzy logic, to create mineral prospect maps based on satellite data has indeed become a quick and accurate instrument for nding target regions for mineral exploration (Zhang et al 2007; Abdel kareem and El-Baz 2018; Takodjou Wambo et al 2020; Mamadou et al 2020; Alari et al 2022), especially during the survey stage. In addition, from the statistical analysis of geochemical data granitic rocks concentrate important volumes of strategic metals (Cerny et Ercit 2005;Taylor and McLennan 1985), especially Fe, Cu, Au Ag, Zn, Ga, and Momainly found in I-type granites, and Sn and W found in S-type granites (Nédelec and Bouchez 2011; Ghodsi et al 2016). Because of their speci c electronic, magnetic, optical, and catalytic properties, these metals are highly sought after in the new technologies industry.…”

Towards a deeper understanding of the third millennium BC Iranian metallurgy: Use of synchrotron light for characterizing arsenic‐bearing minerals in metal objects from Espidej

“…The arc characteristics and geochemical features of the Bazman granitoids show that they are mainly abundant for copper (Cu), arsenic and iron (gold) [Fe (Au)] skarn-related granitoids. 30 The wealth in metal finds correlates with the available metallic sources. Geologically, the outcrops of this area are defined as Cyprustype (ophiolite-hosted) deposits.…”

“…The aforementioned granitoids proved that the rocks are being released the typically granitoids devoid of lithium (Li), beryllium (Be), uranium (U), tin (Sn), tungsten (W) and tantalum (Ta) deposits. The arc characteristics and geochemical features of the Bazman granitoids show that they are mainly abundant for copper (Cu), arsenic and iron (gold) [Fe (Au)] skarn‐related granitoids 30 …”

Evaluation of the mineralizing potential of the Mbengwi plutonics, Northwestern Cameroon, Central Africa

“…It had been proved that most Sn, W and several rare metal (Ta, Nb, Li, Be, Zr, Ga, REE) deposits, above 60% of Cu resources, approximately 10% of Fe, Au, Zn, Pb, Ag and U, in addition to many minor metals (Bi, Cd, Sb, Te, Re, In, Sc) are related to granitic rocks (Sillitoe 1996). Furthermore, Ghodsi et al (2016) found that, calc-alkaline Itype magmas have a high ability to bear and concentrate base metals, notably Fe, Cu, Mo, and Au, while S-type magmas involve aqueous fluids containing Sn, W, and base metals.…”