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Register a new userSedimentological and sequential analysis of the deposits of upper tortonian within the basin of el ma labiad, tebessa (algero-tunisian borders)
التحليل الرسوبي و المتوالي لتوضعات التورتونيان الأعلى في حوض الماء الأبيض، تبسة (الحدود الجزائرية – التونسية)
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Damascus University ورقة بحثية
Publication date
2014
fields
Geology
and research's language is
العربية
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Shamra Editor
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يعنى هذا البحث بدراسة التحليل الرسوبي و المتوالي لتوضعات طابق التورتونيان الأعلى (upper Tortonian) العائد إلى عصر الميوسين في منطقة حوض الماء الأبيض الواقعة جنوب مدينة تبسة في الشرق الجزائري التابعة لسلسلة جبال الأطلس الصحراوي الشرقية على الحدود الجزائرية التونسية. بينت الدراسة الرسوبية التي أجريت على 120 عينة مختارة تطور النمط الرسوبي التنازلي (down lap structures) في اتجاه الناحية الغربية من الحوض. كما بينت التحاليل المخبرية وجود رسوبيات حطامية قارية موزعة ضمن أربعة أنماط رسوبية متمثلة في البيئات النهرية و الدلتاوية ثم الشاطئية المغلقة لتنتهي بالبيئات المستنقعية. هذا و قد أوضحت التحاليل البتروغرافية و المورفولوجية للرسوبات سيطرة فلز المرو (الكوارتز) مع وجود قليل من الفلزات الغضارية المتزايدة في نسبتها نحو الأعلى، كما أكد ت كذلك أنها قد تعرضت لنقل مائي مسافات طويلة، و أنها ذات مصدر صحراوي محتمل.
The authors’ works concern the sediments of the upper part of Tortonian within the basin of El Ma Labiad located at the southern part of Tebessa city, belonging to the eastern saharian Atlas mountains chain on the Algero- Tunisian borders. The sedimentological analysis, carried out on 120 samples, has confirmed a downlap development structures towards the West of the basin. These analyses have also proved the presence of a detrital continental sedimentation of four environments characterized by the river, delta, lake and marsh materials. The petrographic and morphological analysis reveal a clastic sediments essentially quartz-bearing interbedded by some argillaceous intercalations, and a far-off water transport of an origin probably saharian.
References used
Bles J. L. et Fleury J. J., (1970). Carte géologique au 1 /50 000 de Morsott (n°178). Publ. Serv. Carte géolog. Algérie. Alger
Brives A., (1919). Sur la découverte d’une dent de Dinotherium dans la sablière d’El Kouif près de Tébessa. Bull. Soc. Hist. Nat. Afr. Nord, X, 5, P.90-93
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