AGEDABIA FORMATION AND THE ENVIRONMENTAL IMPLICATION OF ITS BIOTA AT GARYOUNIS, SW BENGHAZI.
DOI:
https://doi.org/10.53555/eijas.v6i4.75Keywords:
Wadi Al Qattarah, Agedabia Formation, calcarenite, isopachous, foraminiferaAbstract
The main aim of this paper was to study the Quaternary Agedabia Formation in Garyounis area; this study is based on different paleontological evidences to deduce the various environmental conditions. One lithostratigraphic section have been measured and investigated. It consists mainly of calcarenite and clay. The thickness of the section is 2 m along the mouth of Wadi Al Qattarah at Garyounis area, SW Benghazi city. A number of samples have been studied and about 13 species of fauna and flora have been identified. They include three foraminifera, four bivalves, four Ostracodes, one gastropod and unidentified Bryozoans specimen have been observed also. The cement type (isopachous) of the studied section is confirming that the calcarenite is of subaqueous or marine in origin. The studied calcareous algae plus the associated foraminifer’s points that the calcarenite was deposited under fairly warm (15-30oC) shallow marine conditions with a suggested bathymetric range between 030m.
References
. Grabau, A. W., (1904). On the classification of sedimentary rocks. Am. Geologist, 33: 228-247.
.Tucker, M.E., (2003). Sedimentary Rocks in the Field (3rd edition).Wiley, Chichester.
.Carozzi, A.V., (1960). Microscopic Sedimentary Petrography. John Wiley,New York, 485 p.
.Desio, A., (1935). Studi geologici sulla Cyrenaica, sul deserto Libico, sulla Tripolitania, e sulla Fezan orientali, Rome, 480 pp.
.Goudarzi, G.H.,(1970). Geology and mineral resources of Libya: a reconnaissance. U.S. Geol. SurxK Prof Paper no. 660, Washington, 104p.
.Francis, M. and Issawi, B.,(1977). Sheet Soluq (NH, )2-34 Geological Map of Libya, scale 1:250,000, Explanatory Booklet, Industrial Research Centre, Tripoli.
.Burollet, P.F.,(1960). Libye. Lexique Stratigraphique International, Afrique (dir. R. Furon) Fascicule IVa. Congres Geologique International, Cent. Nat. Rech. Sci. Paris, 62p.
.Shaltami, O.R., Fares, F.F., Errishi, H., EL Oshebi, F.M., and Ilas Bustany, I., (2017). Rare Earth Element Geochemistry and Isotope Geochronology of the Quaternary Calcarenites in the Al Jabal Al Akhdar, NE Libya. 10th International Conference on Applied Geochemistry (ICG-10), Proceeding Book; pp. 50-68.
.Considine, D., and Considine, G., (2013).Van Nostrand’s Scientific Encyclopedia, p. 2086 (Springer Science & Business Media).
.Milsom, C.and Rigby, S., (2010).Fossils at a Glance (2nd edition).Wiley-Blackwell. 159 p.
.Murray, J.W.,(1973). Distribution and Ecology of Living Benthic Foraminiferids. Crane, Russak, New York, p. 274.
.Murray, J. W., (1979). British Nearshore Foraminiferids. Synopses of the British Fauna (New Series) edited by D. M. Kermack & R. S. K. Barnes. No. 16. 68 pp., 22 figs. London, New York: Academic Press.
.Lowman, S. W., (1949). Sedimentary facies in Gulf Coast: Am. Assoc. Petroleum Geologists Bull., v. 33, no. 12, p. 1939-1997.
.Scholle, P.A. and Ulmer-Scholle,D.S., (2003). A Color Guide to the Petrography of Carbonate Rocks: Grains, Textures, Porosity, Diagenesis. AAPG Memoir 77, 459 p.
Downloads
Published
Issue
Section
License
Copyright (c) 2020 EPH - International Journal of Applied Science (ISSN: 2208-2182)
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.