_____________________________________________________________________________________________________ *Corresponding author: E-mail: salem.aboglila@gmail.com; Advances in Research 15(4): 1-11, 2018; Article no.AIR.42144 ISSN: 2348-0394, NLM ID: 101666096 Geochemical Characteristics of Six Formations Based on Organic Geochemical Parameters, Murzuq Basin, Libya S. Aboglila 1* , M. Elaalem 1 , Y. Ezlit 1 and E. Farifr 1 1 Department of Geochemistry and Environmental Chemistry, Tripoli University, Tripoli, Libya. Authors’ contributions This work was carried out in collaboration between all authors. All authors read and approved the final manuscript. Article Information DOI: 10.9734/AIR/2018/42144 Editor(s): (1) S. Srinivasa Rao, Department of Chemistry, V. R. Siddhartha Engineering College, Andhra Pradesh, India. Reviewers: (1) Ahmad Helman Hamdani, University of Padjadjaran, Indonesia. (2) D. Opara Kelechi, Federal University of Technology, Nigeria. (3) Timur Chis, Ovidius University, Romania. Complete Peer review History: http://www.sciencedomain.org/review-history/25210 Received 10 th April 2018 Accepted 17 th June 2018 Published 21 st June 2018 ABSTRACT Cutting samples (n = 150) and Core samples (n = 6) from the Taouratine, Dembaba, Assedjefar Marar, Awaynat Wanin, Tanezzuft and Mamuniyat Formations ( Jurassic to Ordovician), derived from wells (A-3, B-1, H-1 and H-15), locate in the A, B and H fields, present in Murzuq Basin were analysed. Rock-Eval Pyrolysis, Total Organic Carbon and specific Aromatic Molecular Biomarker (by the use of chromatography- mass spectrometry GC-MS) as geochemical parameters implemented to investigate their Lithology, kerogen type, organic matter (OM) richness and maturity evaluation. Such Formations are fair to very good quantity of organic matter passing in the course of excellent source rocks, have average of organic carbon richness (TOC) value ranged between 0.2% to 16.7% with one anomalously rich sample at 666m (well H-1) where a dark grey shale has a TOC content of 46.1% and high potential yield over 90000 ppm. The studied rocks are ranged from immature to mature of hydrogen index (HI) ranged between 24 - 302 mg HC/g TOC versus pyrolysis T max , with dominance of kerogen II/III Type, resulted based on HI versus oxygen index (OI), ranged from 3 to 161 mg CO2/g TOC. The T max , spore colouration (SCI) and Vitrinite Reflectance (% R o ) as maturity parameters ranged among 425 - 445, 5 - 8.5 and 0.35 - 3 respectively. Aromatic Original Research Article