دراسة جيوكيميائية لرواسب السبخة من العصر الرباعي في حوض سرت، شمال وسط ليبيا
الكلمات المفتاحية:
الجيوكيمياء، رواسب السبخة، بيئة الترسيب، التجوية القديمة، المناخ القديم، النضجالملخص
في هذه الدراسة، تم تقييم بيئة الترسيب، والتجوية القديمة، والمناخ القديم، والنضج، والإنتاجية القديمة لرواسب كل من: سبخة وادي مطراطن، والسبخة الكبيرة، وسبخة العويجة، وسبخة غزيل، وسبخة زقوط، وحتية المحيريقة، وحتية مراق، وحتية جبانة، وقارة سهوب، وذلك بالاعتماد على تراكيز الأكاسيد الرئيسية. أظهرت النتائج أن الرواسب المدروسة ترسبت في بيئة بحرية شبه مؤكسدة مع مدخلات قارية ملحوظة. سادت الظروف القاحلة أثناء الترسيب. من المحتمل أن تكون الرواسب قد تعرضت لتجوية معتدلة أو أنها طازجة جدًا. يُعد عدم نضج الرواسب سمة مميزة لها. تراوحت الإنتاجية القديمة بين المنخفضة والمرتفعة.
التنزيلات
المراجع
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