Studying structural characteristics of Saqez–Takab Region (NW of Sanandaj–Sirjan Zone) using GiT (Geoinformation Techniques)

Saqez–Sardasht Goldfield, North Sanandaj‐Sirjan Zone, Iran: A Tectono‐Metallogenic Synthesis

“…(3) A significant contact southwest of Saqez city between the tectonized Precambrian/Cretaceous rocks in the southwest and the Cretaceous-Tertiary rock units (overlying the Iranian Precambrian-Cambrian basement; Kholghi Khasraghi, 1999) in the northeast. This considerable boundary was introduced by Haji et al (2016) as the Tamugheh Fault, cutting through both the Cretaceous volcanic rocks and the ancient bedrock. From the Tamugheh fault line position to central Iran in the northeast, the rock units become gradually younger as well as less deformed.…”

“…In another sense, this region has predominantly spanned the SCV magmatic zone. The central complexly deformed subzone (equivalent to SCV volcanic belt) is separated from the eastern back-arc basin with the Tamugheh fault zone (Haji et al, 2016). Similarly, there is another important boundary (fault) between the central block and the westernmost part of the study area (extending from NE Baneh to the ZMT), introduced here as the Ebrahim Hesar fault zone.…”

“…The major fault sets of the final deformation phase are classified by Haji et al (2016) into three sets: 1) the oldest (Precambrian-Cambrian) N135 dextral fault set; 2) the younger (Jurassic) N70 sinistral/reversed fault set; and 3) the youngest (Paleocene) N15 sinistral fault set. The first two older fault groups were reactivated accompanying the birth of the third set in the Paleocene (Haji et al, 2016;Haji and Safari, 2017).…”

“…The Hasan Salaran-Boeen fault zone, previously nominated as the Saqez-Sardasht fault zone by Mohajjel et al, 2003 andAlmasi et al, 2014, is a steeply dipping major reversed fault of Late Cretaceous to Early Tertiary timespan. This sinistral-reversed fault is oriented approximately perpendicular to the ZMT with the mean strike of N70º and is regarded as the most important structure, which has controlled both the emplacement of G2 felsic bodies, as the probable temperature sources for gold deposition, and the mineralization spatial trend in mesozonal gold districts (Haji et al, 2016).…”

“…Structural division of the study area, the Saqez-Sardasht region in association with geological features (adopted from Kholghi Khasraghi, 1999;Fonoudi and Sadeghi, 2000;Omrani and Khabbaznia, 2003;Hariri and Farjandi, 2003;Shah Pasandzadeh and Goorabjiri, 2006;Sabzehi et al, 2009), embodying orogenic and massive sulfide gold deposits and intrusion-related gold indexes. Granitoid bodies are revised according to Sepahi and Athari (2006b), Athari et al (2006b), Hassanzadeh et al (2008), Mahmoudi et al (2011), Aryan et al (2011), Rashidnejad Omran et al (2013, Abdullah et al (2013) and Azizi et al (2017); faults are extensively revised based on Haji et al (2016). silicified and sericitized alterations.…”