Structural assessment of the Bradost and Berat structures in Imbricate and High Folded zones—Iraqi Kurdistan Zagros belt

Rock Slope Stability Assessment Along Rawanduz Main Road, Kurdistan Region

“…Sarmord Formation belongs to the Early Cretaceous age, additionally, the contact between this Sarmord/Balambo Formation and Chia Gara Formation is gradational (Karim and Khanaqa, 2016). This Formation appears in different localities within the studied areas, at the core of the Korek Anticline (Omar and Othman, 2017) and SW limb of the Bradost Anticline (Balaki and Omar, 2019). This Formation in the studied area in the lower to upper parts composed of gray, thick bedded marl interbedded with yellow, medium bedded marly limestone, sometimes argillaceous, with blue gray calcareous shale starts with friable, weak, gray bedded of shale which are rich in organic (Mamaseni et al, 2019).…”

“…The Bradost Anticline structure is a relatively long (~55 km) and wide (6 to 9.5km) is an asymmetrical anticline with double plunging, the southeastern plunge of Bradost anticline is interfering with Korek and Handrin anticlines, while in the northwest plunged near the southeast of the Barzan area in Rukuchk river and interfering with Shirin anticline (Balaki and Omar, 2019). The southeastern part of the Bradost thrusted anticline is a great concern because contains of six NW-SE-directed main thrusts (Balaki and Omar, 2019). Balaki and Omar (2019) believed that the Bradost Anticline structure is comprises combination of two different geometries and styles and divided by minor Syncline.…”

“…The southeastern part of the Bradost thrusted anticline is a great concern because contains of six NW-SE-directed main thrusts (Balaki and Omar, 2019). Balaki and Omar (2019) believed that the Bradost Anticline structure is comprises combination of two different geometries and styles and divided by minor Syncline.…”

“…It is exposed in the both limbs at the Northwestern plunge of Korek Anticline which had dissected by the Rawanduz river. It is also exposed in the core of the Bradost Anticline (Balaki and Omar, 2019). This formation mostly composed of hard rock to very solid rock, well bedded to massive, fractured dolomite and argillaceous limestones, brown in color to grayish brown, moreover, different types of carbonate rocks were observed such as dolomitic, crystalline, organic, bituminous and fossiliferous (Sissakian and Al-Jiburi, 2014).…”

Late Miocene Deformation Kinematics Along the NW Zagros Fold‐Thrust Belt, Kurdistan Region of Iraq: Constraints From Apatite (U‐Th)/He Thermochronometry and Balanced Cross Sections

“…Generally, most shortening structures in the NW Zagros High Folded Zone are SW-verging, with fold wavelengths of 5-10 km (median = 7.4 km) and amplitudes <2.5 km, showing linear to curvilinear hinge lines generated by lateral fold propagation (Fouad, 2014;Le Garzic et al, 2019;Reif et al, 2012;Zebari & Burberry, 2015). In contrast, structures near Mosul and Duhok area of the northwestern-most Zagros, exhibit both SW and NE vergence (Numan and Al-Azzawi, 1993 Tectonics fault-related folds (e.g., Awdal et al, 2013;Balaki & Omar, 2019;Fouad, 2014;László et al, 2012;Omar et al, 2015;Omar & Othman, 2018;Omar & Syan, 2016;Reif et al, 2012;Sapin et al, 2017;Zebari & Burberry, 2015).…”