Petrography, geochemistry and Petrogenesis of the basalt flow at Al Azraq Al Shamali area, East Jordan

1- All the samples mainly contain olivine, pyroxene, plagioclase and opaque with secondary mineral phases such as Iddingsite which is a result of the alteration processes of olivine. 2- Many types of textures have been observed in AZS samples such as porphyritic, glomeroporphyritic, vesicular, intergranular, radiate, and ophitic to sub ophitic texture. 3- Petrographically, we can classify AZS basalt samples as Alkali-olivine basalt. 4- Normative mineralogy by using CIPW norm showed that AZS basalt samples dominated by anorthite, albite, olivine, orthoclase, Diopside, hematite, nepheline, olivine and low percent of apatite, perovskite and ilmenite. 5- The chemical classification of AZS basalt suggest that the samples can be classified as alkaline basalt and belongs to sodic series. 6- The tectonic setting for the discrimination diagram showed that the AZS samples are situated within plate basalt field. 7- The AZS basalts were produced by primary magmas, were mainly resulted by low degrees of partial melting of garnet-bearing peridotite within the asthenosphere at >I00 km depth, and underwent fractional crystallization of olivine, pyroxene and the plagioclase in the latest stage. 8- The geochemical characteristics and petrogenetic studies of the AZS basalt provide no clear evidence for crustal contamination being a major influence on these rocks. 9- The normalized trace elements spider diagrams (Primitive mantle) of AZS basalt suggest that the magma are derivation from a depleted mantle source (precisely from asthenosphere part of the mantle).