تأثير الوحدات الطباقية التكتونية في تطور موديل طية عقرة المحدبة

الملخص EN

According to the rock's properties, stratigraphic relationships, thickness variations, and correlation with the previous studies, a tectonic model is proposed for the structure of the Aqra anticline.

The area is located within the Iraqi Zagros fold/ thrust belt ZFTB of the northeastern margin of the Arabian Plate.

Stratigraphically, the area comprises formations extended along the period from Early Cretaceous to Pliocene.

They are Sarmord, Qamchuqa, Aqra, Kolosh/Khurmala, Gercus, Pila Spi, Fat'ha, Injana, and Makdadiya.

These formations were deposited along four tectonostratigraphic Megasequences.

The older TMS? ? ? ? not defined? ? ? contains formations that are deposited before the creation of the Zagros foreland basin.

Whereas the formations of the following three ones were deposited within that basin.

During these times, the foreland basin is differentiated into three distinct parts.

They are foredeep, bulge, and fore-bulge, which they were discriminated via listric faults, which are displayed as normal and reverse displacements after and before ophiolite obduction.

Some contributions to the tectonostratigraphic model of the area are adopted.

They are stages of basin development, determining the time of extension period of the listric faults and detecting the tectonic inversion of these faults.

This model is described within the compression tectonic framework of the Arabian/ Eurasian plate s' collision.