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Abstracts

Merbah, S. (1986, October 20). Belloumi et Moufdi Zakaria. El Hadef.
Kutschera, C. (1983). The changing world of the MZab. The Middle East, 61–62.
Ighoulad, B. (1986). Deux textes de l’Oued Mzab. Études et Documents Berbères, 1, 64–67.
Kutschera, C. (1984, March 9). Les sept piliers du Mzab à 600 km au sud d’Alger des cités forteresses défient le désert depuis des siècles. L’Express.
Khorsi, S. (1986, April 11). Moufdi Zakaria “l’odyssée d’un poète.” Révolution Africaine, (1154), 16–17.
Jarlan, Ch. (1985). Hommes et femmes du Mzab. Revue Différences, (50).
Kirtley, A., & Kirtley, M. (1981, November). Sous le voile ibadite. Geo magazine, (33), 109–136.

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Hammouche, A. (1982, June 24). SNAT Ghardaïa “art ou commerce.” Algérie Actualité, (871), 10–11.
Godard, J. (1986). Opération “retrouvailles” ou "30 ans après... du Fezzan à Ghardaïa, à Trelex en Suisse. Le Saharien, (99), 33–36.
Joffé, E. G. H., & McLachlan, K. S. (Eds.). (1982). Social and political structures in the Jafara plain in the late nineteenth century. In Social & Economic Development of Libya. Middle East & North African Studies Press (MENAS).
Joffé, E. G. H. (1984). The French occupation of the western Jafara and the village of Dahibat, 1890-1891. Libyan Studies, 15, 113–128. https://doi.org/10.1017/S0263718900007585

The creation of the Libyan-Tunisian border through the Jafara plain, in the wake of the French occupation of Tunisia in 1881, was to be codified in a formal treaty in 1910, just before the Italian occupation of Libya and the outbreak of the Italo-Libyan wars. However, the border, as then defined, had little to do with any prior social, political or economic reality – Muslim political theory is more concerned with communal sovereignty than with territorial control, while the Jafara plain had always been a region of local political autonomy. In reality, it represented the complex attempts by local military commanders, with the full support of the French administration in Tunis, to maximise French territorial control at the expense of the Turkish administration in Tripoli. The abandoned village of Dahibat, at the foot of the Jabal Nafusa, provided an ideal means of applying such control, particularly as the original population was anxious to return and the French were able to use their anxiety as a means of applying concepts of territorial sovereignty to the Jafara. However, in creating a rigid territorial division, the French authorities also created the grounds for resistance at a local level that eventually expressed itself first through the First World War jihad movement in the Jafara and later formed part of the Tunisian independence movement.

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Anketell, J. M., & Ghellali, S. M. (1983). Stratigraphic studies on Quaternary floodplain deposits of the Eastern Gefara Plain. S.P.L.A.J. Libyan Studies, 14, 16–38. https://doi.org/10.1017/S0263718900007779

Abstract The Quaternary deposits of the Gefara Plain are comprised of three major facies – alluvial fan facies of sands and gravels which blankets the base of the Jebel Nafusa escarpment; floodplain facies of fluvial sands and silts with aeolian dunes which underlies most of the Gefara Plain and, aeolian coastal dune facies, predominantly calcarenitic, which is confined to a narrow coastal zone. Well exposed sections in the eastern part of the plain allow sub-division of the floodplain deposits into a number of mappable units defined and bounded by surfaces of stratigraphic discontinuity. The lithologies of these units are described and compared from selected type sections. The relationships between the units, their geometry, and the nature of the surfaces of stratigraphic discontinuity are discussed. It is proposed that, the lithostratigraphic sequence displayed by the Quaternary floodplain deposits of the eastern Gefara region provides a firm basis for correlation, not only with floodplain deposits in other parts of the plain but also with the other major facies developed in the area. In addition, the recognition of significant stratigraphic breaks in the sedimentary sequence combined with facies analysis lays a firm foundation for an interpretation of the geological history of the region.

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Anketell, J. M. (1989). Quaternary Deposits of Northern Libya — Lithostratigraphy and Correlation. Libyan Studies, 20, 1–29. https://doi.org/10.1017/S0263718900006567

In recent years basic regional geological mapping of northern Libya by the Industrial Research Centre, Tripoli, together with the UNESCO Libyan Valleys Survey of eastern Tripolitania and the work of the author and Dr S. M. Ghellali in the Jifarah Plain and Jabal Nafusah, have greatly added to our knowledge of Quaternary deposits in the region. This work is described and evaluated against the background of earlier studies. The succession of major depositional, soil forming and erosional events which characterise the fluvio-aeolian deposits of the Jifarah Formation can be recognised in, and thus used to subdivide, laterally equivalent aeolianite, fangravel and wadi gravel deposits in the Jifarah Plain. Comparisons of this succession with others from throughout the region indicate that the events are of regional significance and that the Jifarah sequence provides a sound framework for lithostratigraphic correlation and a basis for facies analysis and chronostratigraphic studies. This review is largely limited to the northern margins of Libya north of the 30th parallel (Fig. 1). It is convenient to subdivide the zone into several regions. These are: (a) The Jifarah Plain and foothills of the Jabal Nafusah. (b) The Hammada Al Hamra Plateau and major valleys of eastern Tripolitania. (c) The coastal region from Misratah to Ajdabiyah. (d) Cyrenaica from Soluq to Al Bardia.

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El-Zouki, A. Y. (1980). Depositional environments of the Chicla, Cabao and Chameau Mort Formations as revealed by scanning electron microcopy. In M. J. Salem (Ed.), The geology of Libya. Volume II. Second Symposium on the Geology of Libya, held at Tripoli, September 16-21, 1978. Academic Press.
Pallas, D. (1980). Water resources of the Socialist People’s Libyan Arab Jamahiriya. In M. J. Salem (Ed.), The geology of Libya. Volume II. Second Symposium on the Geology of Libya, held at Tripoli, September 16-21, 1978. Academic Press.
Singh, G. D. S. (1980). Structural control of groundwater flow in the Mesozoic sandstone aquifers of the eastern part of Jabal Nafusah, Libya. In M. J. Salem (Ed.), The geology of Libya. Volume II. Second Symposium on the Geology of Libya, held at Tripoli, September 16-21, 1978. Academic Press.
El-Zouki, A. Y. (1980). Stratigraphy and lithofacies of the continental clastics (Upper Jurassic and Lower Cretaceous) of Jabal Nafusah, NW Libya. In M. J. Salem (Ed.), The geology of Libya. Volume II. Second Symposium on the Geology of Libya, held at Tripoli, September 16-21, 1978. Academic Press.
Fatmi, A. N., Eliagoubi, B. A., & Hammuda, O. S. (1980). Stratigraphic nomenclature of the pre-Upper Cretaceous Mesozoic rocks of Jabal Nafusah, NW Libya. In M. J. Salem & M. T. Busrewil (Eds.), The geology of Libya. Volume I. Second Symposium on the Geology of Libya, held at Tripoli, September 16-21, 1978. Academic Press.
Bausch, W. M. (1980). Mineralogical composition of Jabal Nafusah phonolites. Academic Press.

The Jabal Nafusah phonolites are characterized by the dominance of felsic components, or a very low colour ratio. As mentioned by Almond et al. (1974), phenocrysts (mostly of alkali feldspar) may occur, but generally the phonolites are fine grained, poorly crystallized or even aphyric. Along with microscope analysis, the mineralogical composition has been investigated, essentially by means of X-ray diffraction. The chief (felsic) components found were: sanidine, analcime, nepheline, sodalite and albite (given in order of approximately decreasing frequency). The frequency of analcime is quite remarkable, and has not been hitherto described. Also shown are the relations of changing proportions of mineralogical compositions and detailed X-ray data.
Zerouki, B. (1987). L’Imamat de Tahart: premier état musulman du Maghreb (144/296 de l’Hégire). L’Harmattan. Fonds Martin Custers.

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