A Review and Evaluation of K. H. Karim and M. Al-Bidry's 2020 Study “Zagros Metamorphic Core Complex: Example from Bulfat Mountain, Qala Diza Area, Kurdistan Region, Northeast Iraq” (Jordan Journal of Earth and Environmental Sciences, 11 (2): 113125).
Jordan Journal of Earth and Environmental Sciences
The attention of the present authors is drawn to what looks like odd or even erroneous evidence presented by a paper recently published by Karim and Al-Bidry (2020), focusing on the Zagros Metamorphic Core Complex and providing an example from Bulfat Mountain, Qala Diza area, Kurdistan Region, northeast Iraq. For instance, the ophiolite at Mawat is of the Cretaceous age (105 ±5 Ma; Mohammad and Qaradaghi (2016), the plagiogranites are also of the Cretaceous age, but are slightly younger (92.6 ±1.2 Ma - Mohammad and Qaradaghi (2016), 96.0 ±2.0 Ma - Ismael et al. (2017) and the Hasanbag ophiolite is 106-92 Ma (Ali et al., 2012). On the other hand, 40Ar- Ar dates on the magmatic feldspar separates from the Walash and Naopurdan volcanic rocks indicate an Eocene-Oligocene age (43.01 ± 0.15 to 24.31 ± 0.60 Ma; Ali, 2012; Ali et al., 2013). Many studies of the Zagros region have been undertaken on structure, origin of the ophiolites and the related igneous rocks, as well as on the geodynamic evolution (Ghazal, 1980; Alavi, 1980, 1994, 2004, 2007; Agard et al., 2005; Ali, 2012, Ali et al., 2012, 2013, 2014, 2017, 2019; Ali,2017; Aswad et al., 2011, 2013; Aziz et al., 2011; Mohammad et al., 2014; Mohammad and Qaradaghi, 2016; Mohammad and Cornell, 2017; Ali, 2017; Lawa, 2018). Therefore, the following points will be addressed: (1) Possible Metamorphic Core Complex. (2) Absence of volcanic rocks in the “Bulfat Complex” and absence of dykes and bosses. (3) The origins of the sedimentary rocks in the “Bulfat Complex” that were originally transported to the Bulfat area from the Urumeh-Dokhtar Magmatic (basaltic) Arc (UDMA) by turbidity currents during Paleocene-Early Eocene. (4) the paleogeographic and tectonic model of the deposition of mafic and felsic volcaniclastic sandstones (and other sediments) by turbidity currents sourced mainly from the Urumieh-Dokhtar Magmatic Arc and transported to the Iraqi side of the Sanandaj-Sirjan Zone (SSZ) in the Bulfat and Mawat areas. 39
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