دراسة البنيات الداخلية لبعض منخربات الجوراسي الأعلى : الكريتاسي الأدنى في السلسلة الساحلية و أهميتها الستراتيغرافية

الملخص EN

This study focuses on studying the internal structures of some foraminifera which were found in 43 samples of different nature (hard, soft) taken from three geological sections in the Coastal Chain which are of the OxfordianKimmeridgian and Aptian Age.

It is clear that the simple structures are found in types of vast geographical spreading and long aging time.

Whereas the complex structures of more specialized types with more startigraphical importance and limited geographical spreading and less aging time.These structures also reflect the nature of sediments and the depth of water, in addition to specifying the similar types in the morphological characteristics and the types of organizing the chambers through studying the different foraminiferal section in the thin rocky slides and sections prepared from soft samples.