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The Sirstan granitoid (SG), comprising diorite and granodiorite, is located in the Shalair Valley area, in the northeastern part of Iraq within the Sanandaj–Sirjan Zone (SSZ) of the Zagros Orogenic Belt. The U–Pb zircon dating of the SG rocks has revealed a concordia age of 110Ma, which is interpreted as the age of crystallization of this granitoid body during the Middle Cretaceous. The whole-rock...
The Xutai and Lujiagou plutons, exposed in the Songshan–Jishan area in the southern margin of the North China Craton (NCC), are studied to constrain the tectonic regime of the NCC between 2.5 and 2.4Ga. The Xutai pluton (dated at 2509±33Ma) mainly consists of tonalite and monzogranite with a calc-alkaline affinity (Rittmann Index (δ)<3.3). Low 10,000Ga/Al (1.15 to 1.38) and zircon saturation temperature...
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