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Bazman granitoid complex (BGC; 74±2 Ma) is located in SE of Iran and cropped out in North of Jazmurian depression and South of Lut structural block. The BGC with two outcrops and VAG character has intruded into carbo-permian sedimentary sequences, and has formed a clear contact metamorphism aureole. The eastern part of BGC shows a visible ring structure with granitic core that surrounded by dioritic to gabbro-diorite ring intrusions.
The BGC composed mainly from I-type metaluminous and calk alkaline hornblende granite, biotite granite and some porphiroid granits which contain dioritic xenoliths .The BGC is associated with rare granet bearing and muscovite bearing granites with S-type character and peraluminous nature. Some coarse-grained granites with alkaline nature has reported inside the ring complex (Berberian.F.1981).
According to geochemical studies, granitic part of the BGC has formed by partial melting of crustal amphibolitic rocks due to injection of mantle derived basaltic magma and dioritic part of the BGC formed during assimilation and fractional crystallization process.
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