Cenozoic Basaltic Lava Flow of Wadi Al-Masan (Southwest of Tarhuna Region, Libya): Morphology and Petrography Study
DOI:
https://doi.org/10.59743/jbs.v37i2.294Keywords:
Basalt, Lava Flow, Morphological Structure, Petrography, TarhunaAbstract
One of the most dominant types of igneous volcanic rocks on the earth’s surface is basalt. Wadi Al-Masan area southwest of the Libyan city of Tarhuna is one of the places where the basaltic lava flow is presented. This study aims to identify the morphological structures and petrographic description that indicate mineral composition. Four different morphological forms of basaltic lava structures have been identified as a result of this study, which are lava blisters, lava toes, lava vesicles, and olivine phenocrystals. The work is limited to making thin sections for two rock samples and XRD analysis. The value of this study lies in assisting to employ these morphological forms and petrographic description to understand the geological conditions that formed them in that period of time. Furthermore, to compare these findings with the results found in other areas in Libya with basaltic lava that contain similar geological events.
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