طية مقعرة

طية محدبة بجانبها طية مقعرة.

الطية المقعرة في الجيولوجيا البنيوية، هي طية من الطبقات التي يقترب فيها الجناحين نحو الأسفل و يميلان نحو المستوى المحوري للطية، وتنتج بتأثير قوى الضغط ، وفيها تكون الطبقات الاحدث في المنتصف ويقل عمر صخور الطبقات كلما اتجهنا للخارج على عكس الطية المحدبة. وتكمن اهميتها في أنها مكان لتجمع الخامات المهمة مثل الفسفات.[1]

طية مقعرة.

مراجع

  1. ^ محمد ابراهيم فارس؛ مراد ابراهيم يوسف (1966). الجيولوجيا التركيبية وتطبيقاتها الاقتصادية. القاهرة مصر.{{استشهاد بكتاب}}: صيانة الاستشهاد: مكان بدون ناشر (link)

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