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Sedimentary Environments, Geometry and Characteristics of the Sand Layers within the Basin of El Ma Labiod （Algero-Tunisian Borders）

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Journal of Environmental Science and Engineering 2011年第12期5卷 1617-1623页

作者： M. Hamimed M. EI Kadi M. AI Shara Department of Geology Faculty of Exact Natural and Life Sciences University of Tebessa Tebessa 12002 Algeria Department of Geology Faculty of Sciences University of Damascus Damascus 12345 Syria

The authors＇ work concerns the study of sedimentary environments, the geometry and the characteristics of the silicon-clastic deposits within the basin of EI Ma Labiod at the Algero-Tunisian confines. The sedimentological analysis has proved a Miocene age of the sediments with varied environments： marine, fluvial-deltaic and lake. The geological aspect of the sediment, in particular sandy, is of the movable type or very slightly consolidated. The size of the industrial sand layers can be very diverse, however to feed from the industrial consumers having a certain perenniality, our prospection was directed towards layers with very important reserves. It is about a sedimentary basin with dimensions exceeding very largely the conditions of operating for such projects, which are at least one to two million tons. With the exception of a thin quaternary soil horizon, the basin is almost of an exploitation with open sky. The mineralogical determination has revealed siliceous to extra-siliceous sands, which are absolutely usable in the industry of glass, foundry and also in other functions like the abrasives of sanding and the clothing industry of the sandpapers. Concerning the economic aspect, the materials are very close and this is why the area has known the installation of a glassmaking factory and a cement factory using at the same time the Maastrichtian limestone, the sandy material and the clays of the Western zone of the basin.

关键词： Miocene El Ma Labiod basin sedimentary environments mineralogy petrography economic aspects.

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